Digital PDFs

EK-SMCPR-UG-A01

May 1998

167 pages

Original

7.7MB

Document:	RA8000 and ESA12000 Storage Subsystems User's Guide
Order Number:	EK-SMCPR-UG
Revision:	A01
Pages:	167
Original Filename:

OCR Text

RA8000 and ESA12000
Storage Subsystems
User's Guide
EK-SMCPR-UG. A01

Compaq Computer Corporation

387404-001

While Compaq Computer Corporation believes the information included in this manual is
correct as of the date of publication, it is subject to change without notice. Compaq makes no
representations that the interconnection of its products in the manner described in this document
will not infringe existing or future patent rights, nor do the descriptions contained in this
document imply the granting of licenses to make, use, or sell equipment or software in
accordance with the description. No responsibility is assumed for the use or reliability of
firmware on equipment not supplied by Compaq or its affiliated companies. Possession, use, or
copying of the software or firmware described in this documentation is authorized only pursuant
to a valid written license from Compaq, an authorized sublicensor, or the identified licensor.
Commercial Computer Software, Computer Software Documentation and Technical Data for
Commercial Items are licensed to the U.S. Government with Compaq’s standard commercial
license and, when applicable, the rights in DFAR 252.227 7015, “Technical Data-Commercial
Items.”
© 1998 Compaq Computer Corporation.
All rights reserved. Printed in U.S.A.
Compaq, the Compaq logo, DIGITAL, DIGITAL UNIX, DECconnect, HSZ, HSG,
StorageWorks, VMS, OpenVMS Registered in the United States Patent and Trademark Office.
UNIX is a registered trademark in the United States and other countries exclusively through
X/Open Company Ltd. Windows NT is a registered trademark of the Microsoft Corporation. Sun
is a registered trademark of Sun Microsystems, Inc. Hewlett-Packard, TACHYON, and HP-UX
are registered trademarks of the Hewlett-Packard Company. IBM and AIX are registered
trademarks of International Business Machines Corporation. All other trademarks and registered
trademarks are the property of their respective owners.
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the manuals, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense. Restrictions apply
to the use of the local-connection port on this series of controllers; failure to observe these
restrictions may result in harmful interference. Always disconnect this port as soon as possible
after completing the setup operation. Any changes or modifications made to this equipment may
void the user's authority to operate the equipment.
Warning!
This is a Class A product. In a domestic environment this product may cause radio interference
in which case the user may be required to take adequate measures.
Achtung!

Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb
dieses Gerätes Rundfunkstörungen auftreten, in welchen Fällen der Benutzer für entsprechende
Gegenmaßnahmen verantwortlich ist.
Attention!
Ceci est un produit de Classe A. Dans un environnement domestique, ce produit risque de créer
des interférences radioélectriques, il appartiendra alors à l’utilisateur de prendre les mesures
spécifiques appropriées.
JAPAN

USA
This equipment generates, uses, and may emit radio frequency energy. The equipment has been
type tested and found to comply with the limits for a Class A digital device pursuant to Part 15
of FCC rules, which are designed to provide reasonable protection against such radio frequency
interference. Operation of this equipment in a residential area may cause interference in which
case the user at his own expense will be required to take whatever measures may be required to
correct the interference. Any modifications to this device - unless expressly approved by the
manufacturer - can void the user’s authority to operate this equipment under part 15 of the FCC
rules.

Contents

Revision Record ...................................................................................................... xiii
About This Guide ......................................................................................................xv
1

Product Description
1.1 Subsystem Overview.................................................................................................. 1–1
1.2 Major Components .................................................................................................... 1–6
1.2.1 Array Controllers .................................................................................................... 1–8
1.2.2 SCSI Buses .......................................................................................................... 1–10
1.2.3 Single-Ended I/O Module (SE I/O) ...................................................................... 1–11
1.2.3.1 Expanding the UltraSCSI Bus ............................................................................ 1–12
1.2.3.2 Controlling the Internal SCSI Bus ..................................................................... 1–13
1.2.3.3 Controlling the External SCSI Bus .................................................................... 1–13
1.2.3.4 Controlling the Fault Bus .................................................................................. 1–13
1.2.3.5 “Warm Swapping” I/O Modules and Cables...................................................... 1–13
1.2.3.6 Maximum Bus Length....................................................................................... 1–14
1.3 Error Detection and Reporting ................................................................................. 1–14
1.3.1 Fault Bus ............................................................................................................. 1–14
1.3.2 Environmental Monitor Unit (EMU) .................................................................... 1–15
1.3.2.1 EMU Front Panel .............................................................................................. 1–13
1.3.2.2 Array Controller Status ..................................................................................... 1–17
1.3.2.3 I/O Module Status ............................................................................................. 1–17
1.3.2.4 Enclosure Configuration Information ................................................................ 1–17
1.3.3 Power Verification and Addressing (PVA) Module .............................................. 1–18
1.3.3.1 Monitoring Power Supply Operation ................................................................. 1–19
1.3.3.2 Master Enclosure Controlled Power Shutdown.................................................. 1–20
1.3.3.3 Expansion Enclosure Initiated Power Shutdown ................................................ 1–21
1.4 Storage Device SBBs .............................................................................................. 1–22
1.5 Power Configuration ............................................................................................... 1–22
1.5.1 AC Input Power Entry Controllers ....................................................................... 1–23
1.6 Power Supply SBBs ................................................................................................ 1–24
1.7 Standard (4 + 1) Power Configuration..................................................................... 1–25
1.8 Redundant (4 + 4) Power Configuration .................................................................. 1–26
1.9 ECB SBBs .............................................................................................................. 1–28

EK–SMCPR–UG. A01

387404-001

RA8000 and ESA12000 Storage Subsystems

Product Description (continued)
1.10 Subsystem Cooling ............................................................................................... 1–30
1.11 Setting the PVA SCSI Address.............................................................................. 1–32
1.11.1 Compaq Supported Master PVA Address ........................................................... 1–33
1.11.2 Compaq Supported Expansion PVA Addresses .................................................. 1–34
1.11.3 Non-Supported PVA SCSI Bus Addresses.......................................................... 1–34

Installing the RA8000 and ESA12000 Storage Subsystems
2.1 Installing the RA8000 ................................................................................................ 2–1
2.1.1 RA8000 Site Preparation........................................................................................ 2–1
2.1.2 Placing the RA8000 Storage Enclosure .................................................................. 2–2
2.1.3 Connecting the Subsystem to the Host ................................................................... 2–2
2.2 Installing the ESA12000 ............................................................................................ 2–2
2.2.1 Site Preparation...................................................................................................... 2– 2
2.2.2 Moving the ESA12000 to It’s Designated Site ....................................................... 2–3
2.2.3 Joining Adjacent ESA12000’s................................................................................ 2–4
2.2.4 SW42U Cabinet Rack Mount Template.................................................................. 2–4
2.3 BA370 Major Components......................................................................................... 2–5
2.3.1 Installing Storage Building Blocks (SBBs)............................................................. 2–7
2.3.2 Installing the External Cache Battery (ECB) ........................................................ 2–11
2.4 Installing Additional Components (Options) ............................................................ 2–12
2.4.1 Installing BA370 Universal Mounting Kit DS-BA370-XB ................................... 2–12
2.4.2 Connecting AC Power and ECB Cables................................................................ 2–25
2.4.3 Installing the Ds-BA356-SG UltraSCSI Hub 41U RETMA Shelf Mounting Kit ... 2–26
2.4.4 Installing a Filler Panel Mounting Kit in a 41U RETMA Cabinet......................... 2–30
2.4.5 Installing the DS-SWX4U-2U ECB Shelf Mounting Kit....................................... 2–33
2.4.6 Installing the Fibre Channel Hub Mounting Kit.................................................... 2–36
2.4.7 Cabling a Master Enclosure to an Expansion Enclosure(s) ................................... 2–46
2.4.8 Setting the PVA Addresses .................................................................................. 2–49
2.5 Installing SBBs ........................................................................................................ 2–52
2.5.1 Installing SBB Disk Drives .................................................................................. 2–52
2.5.2 Installing Power Supply SBBs.............................................................................. 2–53
2.5.3 Installing the AC Input Power Controller ............................................................. 2–55
2.5.4 Installing the External Cache Battery (ECB) ........................................................ 2–56

387404-001

EK–SMCPR–UG. A01

Contents

Configuring the Storage Cabinet
3.1 Configuring the EMU ................................................................................................ 3–1
3.1.1 Connecting the EMU Communications Bus ........................................................... 3–2
3.1.2 Setting the Temperature Sensors ............................................................................ 3–2
3.1.3 Setting the Blower Speed Control .......................................................................... 3–4
3.1.4 Alarm Control Switch ............................................................................................ 3–5
3.2 Setting the PVA Addresses ..................................................................................... 3–6

Error Analysis and Fault Isolation
4.1 Storage Subsystem Error Reporting .......................................................................... 4–1
4.2 EMU Error and Fault Status Reporting...................................................................... 4–4
4.3 EMU Subsystem Status LEDs ................................................................................... 4–5
4.3.1 EMU Status LEDs.................................................................................................. 4–5
4.3.2 Configuration Fault Code Reporting....................................................................... 4–9
4.3.3 Shutting Down the Subsystem.............................................................................. 4–15
4.4 Controller Error Conditions .................................................................................... 4–15
4.5 Storage Device Fault Notification ........................................................................... 4–16
4.6 Power Supply Fault Notification ............................................................................. 4–18
4.7 I/O Module and Expansion Cable Error Conditions................................................. 4–20
4.7.1 I/O Module or Expansion Cable ........................................................................... 4–20
4.7.2 Incompatible I/O Modules ................................................................................... 4–20
4.7.3 No I/O Module Installed ...................................................................................... 4–20
4.7.4 TERMPOWER Errors .......................................................................................... 4–21

Replacing Components
5.1 Replacing a Controller, Cache Module or External Cache Battery............................. 5–1
5.1.1 Tools Required....................................................................................................... 5–1
5.1.2 Precautions ............................................................................................................ 5–1
5.2 Preparing Your Host System ..................................................................................... 5–2
5.2.1 Back Up the System............................................................................................... 5–2
5.3 Array Controller Replacement .................................................................................. 5–3
5.3.1 Array Controller Removal...................................................................................... 5–3
5.3.2 Array Controller Installation .................................................................................. 5–4
5.4 Cache Module Replacement...................................................................................... 5–6
5.4.1 Cache Module Removal ......................................................................................... 5–6
5.4.2 Cache Module Installation ..................................................................................... 5–7
5.5 External Cache Battery Replacement ........................................................................ 5–8
5.6 Shutting Down the Subsystem................................................................................. 5–10
5.6.1 Automatic Shutdown Using Standby Power Mode ............................................... 5–10
5.6.2 Full Power Shutdown ........................................................................................... 5–10
5.6.2.1 Shutting Down the Subsystem for a Cold Swap................................................. 5–11
5.6.2.2 Turning On the Subsystem ................................................................................ 5–11
5.6.2.3 Disabling the External Cache Batteries.............................................................. 5–12

Replacing Components (continued)
5.7 Disk Drive SBB Replacement ................................................................................. 5–13
5.7.1 SBB Handling Procedures .................................................................................... 5–14

EK–SMCPR–UG. A01

387404-001

vii

RA8000 and ESA12000 Storage Subsystems

5.7.1.1 Hot Swap .......................................................................................................... 5–15
5.7.1.2 Warm Swap ...................................................................................................... 5–15
5.7.1.3 Cold Swap......................................................................................................... 5–15
5.7.2 Disk Drive SBB Removal .................................................................................... 5–16
5.7.3 Single Disk Drive SBB Installation ...................................................................... 5–16
5.7.4 Multiple Disk Drive SBB Installation in an UltraSCSI Enclosure......................... 5–17
5.8 Power Supply SBB Replacement............................................................................. 5–19
5.8.1 Handling Instructions........................................................................................... 5–20
5.8.2 Power Supply SBB Removal................................................................................ 5–20
5.8.3 Power Supply SBB Installation ............................................................................ 5–20
5.9 Enclosure Blowers .................................................................................................. 5–21
5.9.1 Enclosure Blower Removal .................................................................................. 5–21
5.9.2 Enclosure Blower Installation .............................................................................. 5–21
5. 10 AC Input Power Entry Controller .......................................................................... 5–23
5.10.1 AC Input Power Entry Controller Removal ........................................................ 5–24
5.10.2 AC Input Power Entry Controller Installation..................................................... 5–24
5. 11 EMU ................................................................................................................... 5–25
5.11.1 EMU Removal ................................................................................................... 5–25
5.11.2 EMU Installation................................................................................................ 5–25
5.12 PVA Module......................................................................................................... 5–26
5.12.1 PVA Removal .................................................................................................... 5–27
5.12.2 PVA Installation ................................................................................................ 5–28
5.13 I/O Module ........................................................................................................... 5–29
5.13.1 I/O Module Removal.......................................................................................... 5–30
5.13.2 I/O Module Installation ...................................................................................... 5–30
5.14 FRU Parts List ...................................................................................................... 5–32

viii

387404-001

EK–SMCPR–UG. A01

Contents

Figures
Figure 1–1 BA370 Rack Mountable Enclosure................................................................ 1–1
Figure 1–2 RAID 8000 Pedestal...................................................................................... 1–2
Figure 1–3A ESA12000 Storage Cabinet (Shown with two BA370 Rack Mountable
Enclosures in a Single Cabinet)................................................................... 1–3
Figure 1–3B Joined ESA12000 Storage Cabinet (Shown with Four BA370 Rack
Mountable Enclosures in Two Cabinets) ..................................................... 1–4
Figure 1–4 Configured BA370 Rack Mountable Unit Major Components ....................... 1–7
Figure 1–5 HSG80 Array Controller and Cache Modules................................................ 1–8
Figure 1–6 HSZ80 Array Controller and Cache Modules ................................................ 1–9
Figure 1–7 SCSI Buses ................................................................................................. 1–10
Figure 1–8 Single-Ended I/O Module Location............................................................. 1–11
Figure 1–9 Single-Ended I/O Module ........................................................................... 1–12
Figure 1–10 Environmental Monitor Unit (EMU) ......................................................... 1–15
Figure 1–11 Power Verification and Addressing (PVA) Module ................................... 1–18
Figure 1–12 Disk Drive SBB ........................................................................................ 1–22
Figure 1–13 AC Input Power Entry Controller .............................................................. 1–23
Figure 1–14 Typical Shelf Power Supply SBB .............................................................. 1–24
Figure 1–15 Standard Power Configuration (4 + 1) ....................................................... 1–26
Figure 1–16 Redundant Power Configuration (4 + 4) .................................................... 1–27
Figure 1–17 Dual- Battery (ECB) SBB ......................................................................... 1–28
Figure 1–18 Cache-to ECB-Connection ........................................................................ 1–30
Figure 1–19 Dual Speed Blower Locations ................................................................... 1–31
Figure 1–20 PVA SCSI Address Switch........................................................................ 1–32
Figure 1–21 Enclosure SCSI Bus Addresses for all SBB Device IDs............................. 1–33
Figure 2–1 RA8000 Minimum Installation Clearance Measurements .............................. 2–1
Figure 2–2 Minimum Installation Clearance Measurements............................................ 2–2
Figure 2–3 ESA12000 Storage Subsystem ...................................................................... 2–3
Figure 2–4 Leveler Foot Adjustment............................................................................... 2–4
Figure 2–5 ESA12000 Subsystem Major Components .................................................... 2–5
Figure 2–6 SCSI Buses, Associated Ports, and Device Addressing.................................. 2–8
Figure 2–7 Installing SBB Power Supply (n+1 Shown) ................................................... 2–9
Figure 2–8 Installing an AC Input Power Entry Controller ........................................... 2–10
Figure 2–9 Installing the External Cache Batteries into the ESA12000 ......................... 2–11
Figure 2–10 Installing Left-Lower Mounting Plate (41U RETMA Shown).................... 2–15
Figure 2–11 Installing Right-Lower Mounting Plate (41U RETMA Shown) ................. 2–16
Figure 2–12 Positioning the LED Bracket on the BA370............................................... 2–18

EK–SMCPR–UG. A01

387404-001

RA8000 and ESA12000 Storage Subsystems

Figures (continued)
Figure 2–13 Installing the LED Bracket and the BA370 Mounting Brackets ................. 2–19
Figure 2–14 Installing the Cover Plate .......................................................................... 2–22
Figure 2–15 Installing ECB Y-Cables ........................................................................... 2–25
Figure 2–16 Mounting Bracket Stop Positions .............................................................. 2–27
Figure 2–17 Mounting Example Using Stop Position 1 ................................................. 2–27
Figure 2–18 Three-Port UltraSCSI Configuration Layout.............................................. 2–29
Figure 2–19 Five-Port UltraSCSI Configuration Layout................................................ 2–29
Figure 2–20 Installing the Cover Plate .......................................................................... 2–32
Figure 2–21 Installing the ECB Shelf Mounting Kit...................................................... 2–34
Figure 2–22 Three FC Hub Configuration Example ...................................................... 2–36
Figure 2–23 Installing U-Nuts and Brackets.................................................................. 2–38
Figure 2–24 Attaching Slide Brackets ........................................................................... 2–39
Figure 2–25 Installing Slide Brackets ........................................................................... 2–40
Figure 2–26 Dual Controller, Dual Hub Configuration.................................................. 2–41
Figure 2–27 Single Controller/Single Server/Single Port............................................... 2–42
Figure 2–28 Single Controller/Single Server/Dual Port Configuration .......................... 2–42
Figure 2–29 Dual Controller/Single Server/Single Port Configuration .......................... 2–43
Figure 2–30 Dual Controller/Single Server/Dual Port Configuration............................. 2–43
Figure 2–31 Single Controller/Dual Server/Dual Port Configuration............................. 2–44
Figure 2–32 Multiple Server/Dual Controller Configuration ......................................... 2–44
Figure 2–33 Clustered Dual Server/Single Hub Configuration ....................................... 2–45
Figure 2–34 SE I/O Port Identification.......................................................................... 2–46
Figure 2–35 SE I/O Port Wiring (One Expansion Unit)................................................. 2–47
Figure 2–36 SE I/O Connections for Two Expansion Units ........................................... 2–48
Figure 2–37 EMU Front Panel ...................................................................................... 2–48
Figure 2–38 Multiple EMUs Connected Together ......................................................... 2–49
Figure 2–39 PVA Module Front Panel .......................................................................... 2–49
Figure 2–40 Expansion Enclosure SCSI Bus Addresses ................................................ 2–51
Figure 2-41 Installing Power Supply SBB (4+1 Shown)................................................ 2–54
Figure 2–42 ECB Shelf Location (ESA12000 Shown).................................................... 2–56
Figure 4–1 Storage Subsystem Status LEDs.................................................................... 4–2
Figure 4–2 EMU Front Panel Layout .............................................................................. 4–4
Figure 4–3 HSG80 and HSZ80 OCP Display ............................................................... 4–15
Figure 4–4 Disk Drive SBB LEDs ................................................................................ 4–16
Figure 4–5 Power Supply SBB Status LEDs ................................................................. 4–18

387404-001

EK–SMCPR–UG. A01

Contents

Figures (continued)
Figure 4–6 I/O Module LEDs ....................................................................................... 4–21
Figure 5–1 Array Controllers and Cache Modules............................................................ 5–3
Figure 5–2 External Cache Battery Storage Building Block ............................................ 5–8
Figure 5–3 External Cache Batteries ............................................................................. 5–12
Figure 5–4 Location of the Disk Drive SBB.................................................................. 5–13
Figure 5–5 Placement of Multiple Disk Drive SBBs ..................................................... 5–18
Figure 5–6 Location of the Power Supply SBB ............................................................. 5–19
Figure 5–7 Location of the Blowers .............................................................................. 5–22
Figure 5–8 Location of the AC Input Power Entry Controller ....................................... 5–23
Figure 5–9 Location of the EMU .................................................................................. 5–25
Figure 5–10 EMU Communication ............................................................................... 5–26
Figure 5–11 Location of the PVA ................................................................................. 5–27
Figure 5–12 Location of the I/O Modules ..................................................................... 5–29
Figure 5–13 Storage Cabinet Field Replaceable Parts (RA8000 Pedestal Shown).......... 5–33

EK–SMCPR–UG. A01

387404-001

RA8000 and ESA12000 Storage Subsystems

Tables
Table 1–1 EMU Front Panel Component Descriptions .................................................. 1–16
Table 1–2 Storage Subsystem Major Power Components.............................................. 1–23
Table 1–3 ECB Status Indications................................................................................. 1–29
Table 1–4 Expansion Enclosure Address Combinations ............................................... 1–34
Table 2–2 Installing Rails for the Upper BA370 ........................................................... 2–18
Table 2–3 Installing Rails for the Lower BA370 ........................................................... 2–18
Table 2–5 Expansion Enclosure Address Combinations ............................................... 2–28
Table 3–1 EMU Set Point Temperature Conversions ...................................................... 3–3
Table 3–2 Temperature Set Point Rules – EMU Firmware Vers. 1.0 and 1.1................... 3–3
Table 3–3 Temperature Set Point Rules – EMU Firmware Vers. 1.2 and 1.3................... 3–4
Table 3–4 Expansion Enclosure Address Combinations .................................................. 3–7
Table 4–1 Subsystem Status LEDs................................................................................... 4–3
Table 4–2 EMU Subsystem Status LEDs ........................................................................ 4–5
Table 4–3 EMU Status Displays ..................................................................................... 4–6
Table 4–4 EMU Fault Code LEDs Displays .................................................................. 4–10
Table 4–5 Storage SBB Status LED Conditions ............................................................ 4–17
Table 4–6 Storage SBB Status LED Displays................................................................ 4–17
Table 4–7 Power Supply SBB Status LED Conditions .................................................. 4–18
Table 4–8 Power Supply SBB Status LED Displays ....................................................... 4–19
Table 5–1 SBB Handling Rules..................................................................................... 5–14
Table 5–2 Subsystem Field Replaceable Units .............................................................. 5–32

xii

387404-001

EK–SMCPR–UG. A01

Revision Record
This Revision Record provides a concise publication history of this guide. It lists the manual
revision levels, release dates, and summary of changes.

The following revision history lists all revisions of this publication and their effective dates. The
publication part number is included in the Revision Level column, with the last entry denoting
the latest revision.
Revision Level

Date

Summary of Changes

EK–SMCPR–UG. A01

November 1998

Initial release

EK–SMCPR–UG. A01

387404-001

xiii

About This Guide
This section identifies the users of this guide and describes the contents and structure. In
addition, it includes a list of conventions used in this guide and related documentation.

RA8000 and ESA12000 Storage Subsystems User's Guide
This guide provides a product description, set up, configuration, and maintenance
information for the RAID Array 8000 (RA8000) and the Enterprise Storage Array 12000
(ESA12000) Storage Subsystems.

Visit Our Web Site for the Latest Information
Check our web for the latest drivers , technical tips, and documentation. We can be found
in the technical area of our web page, http://www.compaq.com/

Intended Audience
This guide is intended for users who are responsible for installing, configuring, and
repairing the RA8000 and ESA12000 Storage Subsystems.

Document Structure
This guide contains the following chapters:

Chapter 1: Product Description
Product Description provides a product overview of the RA8000 and ESA12000 Storage
Subsystems. It also describes their components, features, and operating functions.

Chapter 2: Installing the RA8000 and ESA12000
Installing the RA8000 and ESA12000 describes how to install the subsystem. It includes
site preparation, installing SBBs, and cable connections between the subsystem and the
host. The chapter also describes how to install options and how to connect a master
ESA12000 to an expansion enclosure.

EK–SMCPR–UG. A01

387404-001

RA8000 and ESA12000 Storage Subsystems

Chapter 3: Configuring the Storage Cabinet
Configuring the Storage Cabinet describes how to connect the EMU communications
bus and setting monitoring controls.

Chapter 4: Error Analysis and Fault Isolation
Error Analysis and Fault Isolation describes the errors, faults, and significant events
that may occur during the enclosure's initialization and operation.

Chapter 5: Replacing Components
Replacing Components describes the procedures to remove and install the Field
Replaceable Units (FRUs) in the subsystem.

Conventions
This guide uses the following conventions:
Style

Meaning

boldface type
italic type

For emphasis and user input.
For emphasis, manual titles, utilities, menus, screens, and
filenames
Screen text.

plain monospace type

Related Documentation
For additional information on the RAID array controller, refer to the following
StorageWorks documents:
Document Title

Document Part Number

HSG80 Array Controller ACS Version 8.x
Configuration and CLI Reference Guide
HSG80 Array Controller ACS Version 8.x
Maintenance and Service Guide
HSZ80 Array Controller ACS Version 8.x
Configuration and CLI Reference Guide
HSZ80 Array Controller ACS Version 8.x
Maintenance and Service Guide

xvi

387404-001

EK-HSG80-RG/387402-001
EK-HSG80-SV/355218-001
EK-HSZ80-RG/388222-001
EK- HSZ80-SV/388221-001

EK–SMCPR–UG. A01

1
Product Description
This chapter describes the RA8000 and ESA12000 Storage Subsystems including the Ultra Small
Computer System Interface (SCSI-3) connections (ports) for StorageWorks building block (SBB)
shelves.

1.1

Subsystem Overview
The RA8000 and ESA12000 Storage Subsystems are members of Compaq’s
StorageWorks family of modular enclosures. They share a common major component, the
BA370 Rack Mountable Enclosure (Figure 1-1), that includes an Environmental Monitor
Unit (EMU), a Power Verification and Addressing (PVA) module, power supplies, and
an AC Power Entry Controller. StorageWorks storage devices, redundant power supplies,
array controller(s), cache module(s), External Cache Battery (ECB), and redundant ac
power entry controllers may also be included. Figures 1-2 , 1-3A, and 1-3B show three
possible BA370 configurations.
Figure 1–1 BA370 Rack Mountable Enclosure

CXO5797A

EK–SMCPR–UG. A01

387404-001

1–1

RA8000 and ESA12000 Storage Subsystems

Figure 1–2 RAID 8000 (RA8000) Pedestal

SHR-1145

1–2

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

Figure 1–3A ESA12000 Storage Cabinet (shown with two BA370
rack-mountable enclosures in a single cabinet)

CXO6618A

EK–SMCPR–UG. A01

387404-001

1–3

RA8000 and ESA12000 Storage Subsystems

Figure 1–3B Joined ESA12000 Storage Cabinets (shown with four BA370
rack-mountable enclosures in two cabinets)

CXO6619A

1–4

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

The major features of the BA370 rack mountable enclosure are as follows:
•

Holds up to twenty-four 3½-inch disk drive SBBs per BA370

•

Redundant power distribution to eliminate single points of failure

•

Redundant ac power entry controllers

•

Contains six, single-ended, Ultra Wide SBB backplane SCSI buses

•

Minimizes SCSI bus cables

•

A StorageWorks HSG80 or HSZ80 RAID array controller (can hold single or dual
redundant array controllers)

•

All major components, except the single ended I/O modules and PVA module, can
be replaced using the hot-swap method which reduces down time (described in
Chapter 5)

•

Fault monitoring and reporting capability for incorrect voltages, shelf blower failure,
power supply failure, and excessive operating temperature

•

The BA370 may be used as a master or an expansion unit

•

One or two expansion enclosures can be connected to a master enclosure which
provides SBB slots for up to 72 disk drives
NOTE
The master unit contains the array controller(s) and cache
module(s). Expansion units contain additional storage
devices on the same SCSI buses.

•

The 24-SBB RAID Array 8000 storage subsystem and the ESA12000 storage
subsystem are Class A FCC certified

EK–SMCPR–UG. A01

387404-001

1–5

RA8000 and ESA12000 Storage Subsystems

1.2

Major Components
A fully configured redundant subsystem (Figure 1-4) consists of the following major
components:
1) A BA370 Rack mountable enclosure (1)
2) Cooling Fan (8)
3) Single-Ended I/O Modules (6)
4) Optional Fibre Channel or UltraSCSI Hub
(12-port Fibre Channel Hub shown)
5) Cache module (2)
6) HSG80 Fibre Channel RAID Array controllers (2) or
HSZ80 SCSI RAID Array Controllers (2)
7) Power Verification and Addressing (PVA) Module (1)
8) Environmental Monitor Unit (EMU) (1)
9) AC Input Power Controllers (1 standard, 2 shown in Figure 1–4)
10) 180-watt power supply (5 standard, 8 shown in Figure 1-4)
11) External Cache Battery (ECB), single
External Cache Battery (ECB), dual
Also, Power Distribution Unit (2) Not shown, mounted in ESA12000 cabinet only

1–6

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

Figure 1–4 Configured BA370 Rack Mountable Unit Major Components
1

9 2x

3
8

7
6 2x

5 2x

4
CXO6568A

EK–SMCPR–UG. A01

387404-001

1–7

RA8000 and ESA12000 Storage Subsystems

1.2.1 Array Controllers
Either an HSG80 Fibre Channel array controller or an HSZ80 UltraSCSI array controller
can be used. The array controller presents the storage devices to the host system as
another device connected to one of its I/O buses. The array controller then processes the
I/O requests to the storage devices of the subsystem. The array controller(s) mount in the
lower front of the cabinet (see Figure 1-5 for HSG80 and Figure 1-6 for the HSZ80).
Installing two array controllers with cache modules provides complete array controller
redundancy as described in either the HSG80 Array Controller ACS Version 8.3
Maintenance and Service Guide or HSZ80 Array Controller ACS Version 8.3
Maintenance and Service Guide.
NOTE
Array controllers and cache modules removed from array
controller card cage for clarity in Figures 1-5 and 1-6.
Modules are not a single unit.

Figure 1–5 HSG80 Array controller and Cache Modules

Controller
Card Cage

Controller
Shelf or
Enclosure

Array Controller
Modules

Cache
Modules
SHR-1146

1–8

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

Figure 1–6 HSZ80 Array controller and Cache Modules
Controller
Card Cage

Controller
Shelf or
Enclosure

Array Controller
Modules

Cache
Modules
SHR-1146

The array controller documentation describes procedures for:
• Configuring the array controller
• Setting initial array controller parameters using a maintenance terminal
• Determining the proper method for replacing SBBs
The array controller software revision level determines the devices supported by the array
controller.

EK–SMCPR–UG. A01

387404-001

1–9

RA8000 and ESA12000 Storage Subsystems

1.2.2 SCSI Buses
There are six Ultra Wide SCSI buses associated with the array controller. The ports and
device addresses for the master unit are shown in Figure 1-7.
Figure 1–7 SCSI Buses
Port/
Bus 2

Port/
Bus 4

Port
Bus 6

Device
Address 3

Typical Backplane Connection

ID3

ID2

Device
Address 2

ID1

Device
Address 1

ID0

Device
Address 0

ID6

Device
Address 6
Device
Address 7

ID7

Port/
Bus 1

Port/
Bus 3

Port/
Bus 5
SHR-1147

1–10

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

The subsystem enclosure supports single-ended, Ultra Wide storage devices. The
configuration rules for the SCSI buses are as follows:
•

All devices and ports in the same column are on the same SCSI bus or port

•

All devices in the same row (device shelf) have the same device address

•

You may only install array controller-compatible Ultra Wide storage SBBs

•

Device addresses 4 and 5 are only used when the SBB has a device address switch

•

Device addresses are determined by the backplane connector into which the device is
inserted unless the SBB has a device address switch

1.2.3 Single-Ended I/O Module (SE I/O)
Figure 1–8 Single-Ended I/O Module Location

I/O Modules

SHR-1148

EK–SMCPR–UG. A01

387404-001

1–11

RA8000 and ESA12000 Storage Subsystems

Each SCSI enclosure, whether it is a master or an expansion enclosure, has six I/O
modules mounted at the bottom rear of the enclosure as shown in Figure 1-8. In all
enclosures these modules are the interconnection point between the array controller in the
master enclosure and the devices in the expansion enclosures. In an UltraSCSI RAID
subsystem, the I/O modules, the internal SCSI buses, and the array controller ports all
have the same number. For example, array controller port 2, SCSI bus 2, and I/O module
2 are different elements of the same bus. Figure 2–34, Chapter 2, identifies the six I/O
port numbers at the bottom of the enclosures. The major features of the single-ended I/O
module are described in the following sections.
1.2.3.1 Expanding the UltraSCSI Bus
Each I/O module has an UltraSCSI single-ended bus expansion integrated circuit. This
device isolates the internal and external SCSI bus and extends the length of the SCSI bus.
Figure 1–9 Single-Ended I/O Module

External
TERM POWER
disable LED

Internal
TERM POWER
disable LED
CXO5947A

The two VHDCI female connectors are the connection points for expanding the SCSI
buses between enclosures (see Figure 1-9). These connectors are wired in parallel and act
as a tri-link connector. In an expansion configuration, Compaq recommends that
maximum cable length not exceed 1.5 m (4.6 ft.) between enclosures. Compaq supplies a
cable kit, DS-BNK37-IE, containing the necessary cables to connect an expansion unit.

1–12

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

1.2.3.2 Controlling the Internal SCSI Bus
The I/O module controls the internal SCSI bus in the following manner:
• Isolates the internal SCSI bus from the external SCSI bus.
• Provides single-ended SCSI bus termination.
• Disconnects the internal SCSI bus from the external SCSI bus when the EMU so
directs.
• Distributes TERMPOWER (+5 V dc) to the internal SCSI bus.
• Turns ON the green internal TERMPOWER LED (see Figure 1-9) when the internal
TERMPOWER is present.
• Turns OFF the green internal TERMPOWER LED (see Figure 1-9) when there is an
internal TERMPOWER overcurrent condition.
1.2.3.3 Controlling the External SCSI Bus
The I/O module controls the external SCSI bus in the following manner:
• Provides single-ended SCSI bus termination.
• Distributes TERMPOWER (+5 V dc) to the external SCSI bus.
• Turns ON the green external TERMPOWER LED (see Figure 1-9) when the external
TERMPOWER is present.
• Turns OFF the green external TERMPOWER LED(see Figure 1-9) when there is an
external TERMPOWER overcurrent condition.
• Automatically disables the external bus termination when a cable is connected to the
right hand VHDCI connector.
1.2.3.4 Controlling the Fault Bus
The I/O module controls the fault bus operation in the following manner:
• Provides a fault bus driver for improved signal transmission.
• Distributes the FAULT_CLK and FAULT_DATA signals from the master enclosure
to the expansion enclosures.
• Distributes the SHELF_OK and SWAP_L signals from the expansion enclosures to
the master enclosure.
1.2.3.5 “Warm Swapping” I/O Modules and Cables
You can replace either the I/O module or a cable when the associated SCSI bus is
quiesced (no data transfers occurring) – a warm swap. This enables you to correct
problems affecting only one bus without disrupting data transfers on the other five buses.

EK–SMCPR–UG. A01

387404-001

1–13

RA8000 and ESA12000 Storage Subsystems

1.2.3.6 Maximum Bus Length
The maximum bus length, including external cables (distance from the I/O module
terminator to the last terminator on the bus) is a function of the bus speed and the number
of devices. If the external bus is configured point to point (from SE I/O module-to-SE I/O
module with no devices installed in between), the cables may be extended to 20 meters
due to the isolation and re-timing circuitry of the SE I/O module.

1.3

Error Detection and Reporting
The subsystem error detection and reporting function has two major elements – the fault
bus and the EMU (environmental monitor unit). For a detailed discussion of error
detection, fault reporting, and correction, refer to Chapter 4, Error Analysis and Fault
Isolation.

1.3.1 Fault Bus
The subsystem fault bus monitors subsystem operation and reports fault conditions to
either the HSG80 or the HSZ80 array controller and the EMU. The array controller and
EMU then report the error condition to the user. The fault bus monitors the following
conditions:
• Blower failure (SHELF_OK)
• Power supply failure (SHELF_OK)
• Storage device removal (SWAP_L)
• Storage device installation (SWAP_L)
• SBB failure (FAULT_CLK, FAULT_DATA)
The fault bus consists of three subsystem backplane signals routed to the array controller
port connectors as follows:
• Shelf Status Signal – The SHELF_OK status signal indicates the state of subsystem
power (ac and dc) and blower operation
• SBB Swap Signal – The SWAP_L signal is asserted whenever an SBB is removed or
inserted in the subsystem
• SBB Fault Signals – The SBB amber LED displays either the storage address or
indicates a device fault. This device fault LED is controlled by the fault clock
(FAULT_CLK) and the fault data (FAULT_DATA) control signals.

1–14

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

1.3.2 Environmental Monitor Unit (EMU)
The primary function of the EMU (see Figure 1-10) is to monitor, process, report, and
display enclosure and array controller environmental status information for the power
supplies, temperature, blowers, configuration, SCSI addressing, I/O modules,
communications, and the EMU microcode version. The EMU and array controller can
exchange and process this information.
CAUTION
Proper operation of a storage subsystem requires an
operational EMU and PVA in each BA370 rack mountable
enclosure. You must also establish communications links
between the EMUs to ensure proper subsystem operation
and error reporting.

1.3.2.1 EMU Front Panel
The EMU front panel contains all of the user interface controls, connectors, and displays
(see Figure 1-10 and Table 1-1).
Figure 1–10 Environmental Monitor Unit (EMU)
EMU
COMMUNICATIONS
EMU
CONNECTOR
MAINTENANCE
CONNECTOR
EMU
COMMUNICATIONS
CONNECTOR

BLOWER
FAULT LED(S)
POWER
STATUS LED
TEMPERATURE
FAULT LED
SYSTEM FAULT LED
AND ALARM CONTROL
SWITCH

EK–SMCPR–UG. A01

387404-001

1–15

RA8000 and ESA12000 Storage Subsystems

Table 1–1 EMU Front Panel Component Descriptions
Component
EMU Com. Connector
(LEFT )
System Fault LED
(amber) and Alarm
Control Switch

Temperature Fault LED
(amber)

Power Status LED
(green)

EMU Maintenance
Connector

Blower Fault LEDs
(amber)

EMU Com. Connector
(RIGHT)

1–16

Function
Provides inter-EMU communications.
The System Fault LED in the Alarm Control Switch is
ON whenever there is an error condition.
This LED is FLASHING whenever the EMU has one
or more fault codes to display.
When there is a fault code, momentarily pressing this
switch turns OFF the audible alarm and starts the
fault code LED display.
Pressing the Alarm Control switch for at least 5
seconds clears all the active fault codes.
After a controlled power shut down, momentarily
pressing this switch will restore power to the
enclosure.
Whenever either the ambient temperature or the
enclosure backplane temperature exceeds the userdefined temperature set point, this LED is ON until
the condition is corrected.
This LED is ON whenever there are:
At least four operational +5 V dc power supplies
At least four operational +12 V dc power supplies
TERMPOWER is present on all six I/O modules
This LED is OFF whenever there are:
Fewer than four operational +5 V dc power supplies
Fewer than four operational +12 V dc power supplies
One or more I/O modules are missing
TERMPOWER
You can connect a maintenance terminal or PC to
this connector to display EMU:
Error messages
Information messages
A PC can also load EMU microcode through this
connector.
One or more of these eight blower fault LEDs are
ON whenever one or more blowers are:
Not operating
Not operating at the correct speed.
Removed
There is a fault code display
Provides inter-EMU communications.

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

1.3.2.2 Array Controller Status
The master EMU also monitors the state of both array controllers. Should the EMU detect
an array controller fault it can:
• Sound the audible alarm
• Cause the EMU system fault status LED to flash
• Display an array controller fault code on the blower LEDs when you momentarily
press the Alarm Control switch
When an error is detected on the EMU array controller communications path, it causes an
array controller fault.
1.3.2.3 I/O Module Status
The EMU also ensures that all six I/O modules are present, are properly installed, and that
each has TERMPOWER. If any of these conditions are not met, the EMU reports an error
condition to the array controller(s). The EMU also reports each I/O module type to the
array controller. Should an array controller determine that the I/O module configuration is
incorrect, it displays this information on the console.
An integrated circuit on each I/O module functions as an UltraSCSI bus extender. The
EMU and the array controller can enable or disable individual I/O module circuits,
thereby controlling individual external SCSI buses.
1.3.2.4 Enclosure Configuration Information
The EMU maintains the following configuration information:
• Enclosure number
• EMU microcode version
• EMU message protocol version
• PVA SCSI ID setting
• Temperature sensor set points
• The number of installed power supplies by location
• The number of installed SBBs by location
• The number of installed blowers by location

EK–SMCPR–UG. A01

387404-001

1–17

RA8000 and ESA12000 Storage Subsystems

1.3.3 Power Verification and Addressing (PVA) Module
Proper operation of the subsystem, whether it be a master or an expansion enclosure,
requires both a PVA module and an EMU module. The PVA (Figure 1-11) and its
associated EMU ensures that all major UltraSCSI components are functioning properly.
When an error condition occurs, these modules notify the user that a problem exists. The
array controller identifies the specific problem. The PVA and EMU LED displays identify
possible causes of the problem.
The PVA mounts in the lower right section of the enclosure, directly above the array
controller. The PVA and EMU have the same physical dimensions, use the same type
connectors, and are mounted next to each other – the EMU on the left and the PVA on the
right (see Figure 1-4). They are not interchangeable.
Figure 1–11 Power Verification and Addressing (PVA) Module

As shown in Figure 1-11, the major user-accessible components of the PVA include the
following:
• The dc power shutoff switch which includes a green power status LED
• The UPS connector (RJ-45) for future UPS monitoring capability
• The enclosure SCSI address switch that establishes the enclosure address and thereby
the SCSI bus IDs for each storage device

1–18

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

The PVA has two status indicators:
• The green power status LED in the power shut down switch. This LED is ON
whenever there at least four operational power supplies. When an error condition
occurs, the LED is OFF and the PVA reports the error to the EMU. The EMU also
monitors the power supplies for this condition
• An audible alarm that beeps at a slow rate when the PVA detects removal of or
improper installation of the EMU. This ensures you are aware the EMU must be
replaced within 8 minutes to prevent a system shut down
The primary functions of the PVA include the following:
1) Ensures that there is a minimum of four operational power supplies in the
enclosure. If the PVA senses less than four power supplies, it notifies the EMU.
2) Allows the user to select the Compaq-supported device SCSI bus addresses for the
master and each expansion enclosure.
3) Monitors the EMU status and:
• Notifies the user of removal of the EMU
• Notifies the user when there is no master EMU
• Notifies the user when there are multiple master EMUs
• Provides the user a switch to disconnect dc power from the enclosure power
buses
• Monitors the optional UPS for proper operation and reporting the UPS status (a
planned future capability)
1.3.3.1 Monitoring Power Supply Operation
For accurate, reliable transfer of data without data corruption or loss, the enclosure
requires a minimum of four operational power supplies to furnish both +5 and +12 Vdc
for operation of the following:
• Storage Devices (SBBs)
• Array controllers and cache memories
• EMU
• PVA

EK–SMCPR–UG. A01

387404-001

1–19

RA8000 and ESA12000 Storage Subsystems

Therefore, both the EMU and PVA monitor all of the power supplies (a maximum of
eight) to ensure that at least four are operational. An error condition is indicated by one of
the following conditions:
• The +5 Vdc voltage drops to +4.7 Vdc
• The +12 Vdc voltage drops to 11.4 Vdc
Another voltage essential for proper operation is the +5 Vdc termination power
(TERMPOWER) required for the SCSI bus on each of the six I/O modules. If this voltage
drops to +4.7 Vdc, an error condition exists.
As long as there are four operational supplies and TERMPOWER is correct, the EMU and
PVA generate the POK (power OK) signal. As long as POK is present the array controller
can continue to transfer data providing there are no other error conditions.
The loss of the POK signal for any reason causes the array controller to shut down and
halt all data transfers. All six buses remain quiesced (no data transfers occurring) until the
array controller determines that power is correct. The array controller does this by
checking the status of the POK signal. Until the POK reports that there are at least four
operational power supplies and that TERMPOWER is correct, the array controller, the
cache memories, and all the devices remain passive. The EMU and the PVA continue to
monitor the system and report the error condition.
1.3.3.2 Master Enclosure Controlled Power Shutdown
The EMU can shut down the dc power in the master enclosure or the subsystem when one
of the following conditions occur:
• The EMU determines an extreme over-temperature condition that requires removing
power from the subsystem
• The user presses and holds down the PVA dc power switch until the EMU initiates a
controlled power shut down
NOTE
This procedure will only work when the array has been shut
down.

When you initiate a controlled power shut down from the master enclosure PVA the
sequence of events is as follows:
1) The EMU changes its status to indicate that the dc power switch was pressed
2) The master EMU notifies the array controller of the change in status.
3) When the array controller is ready, it sends a controlled power shutdown command
to the master EMU.

1–20

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

4) A controlled power shut down is completed on all the subsystem cabinets.
NOTE
If the master EMU is not communicating with the array
controller or the array controller does not support a
controlled shut down, the master EMU commands all
enclosures to perform an immediate power shut down.

1.3.3.3 Expansion Enclosure Initiated Power Shut Down
NOTE
This procedure will only work when the array controller(s)
have been shut down.

When you press the PVA dc power switch on the expansion enclosure and the expansion
EMU can communicate with the master EMU, one of the following power shut down
operations occurs:
NOTE
When the expansion EMU cannot communicate with the
master EMU, pressing the dc power switch causes an
immediate controlled power shut down of only the
expansion enclosure.

1. The slave EMU changes its status to indicate that the dc power switch was pressed.
2. The master EMU notes the change in status.
3. The master EMU notifies the array controller of the change in status.
4. When the array controller is ready, it sends a controlled power shut down command
to the master EMU.
5. A controlled power shut down is completed on all the subsystem cabinets.
NOTE
If the master EMU is not communicating with the array
controller or the array controller does not support a
controlled shut down, the master EMU commands all
enclosures to perform an immediate power shut down.

EK–SMCPR–UG. A01

387404-001

1–21

RA8000 and ESA12000 Storage Subsystems

1.4

Storage Device SBBs
The BA370 can accommodate up to twenty-four 3½-inch storage device SBBs
(Figure 1–12). Each occupies one slot (six SBBs per shelf). The SCSI device addresses of
the SBBs can be assigned in the following ways:
• By the backplane connector
• With the SCSI device address switch mounted on the rear of the SBB
The HSG80 and the HSZ80 array controllers software product descriptions and release
notes list the subsystem compatible SBBs.
Figure 1–12 Disk Drive SBB

DEVICE
ACTIVITY
(GREEN)

DEVICE
FAULT
(AMBER)

1.5

Power Configuration
There are two primary storage subsystem power configurations:
• Standard – 4 + 1 power configuration includes one ac power controller and five
power supply SBBs on power bus A
• Redundant – 4 + 4 power configuration includes one ac power controller and four
power supply SBBs on power bus A, one ac power controller, and four power supply
SBBs on power bus B
When there are less than four operational power supplies, the subsystem will cease
operating to preserve and protect the data. Table 1-2 lists the storage subsystem power
components and configurations.

1–22

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

CAUTION
A minimum of four operational SBB power supplies are
required for operation of the subsystem. The fifth SBB
power supply provides redundancy.

Table 1–2 Storage Subsystem Major Power Components
Component

Order No.

Power Configurations
Standard

Redundant

ac Power Entry
Controller

DS-BA35X-HE

Shelf Power Supply
SBB

DS-BA35X-HH

1.5.1 AC Power Entry Controllers
The ac input power is routed from the wall outlet to one of the power entry controllers
(Figure 1-13) that may have either of the following input voltages:
• 100 – 120 V ac, 60 Hz, single-phase, 12A
• 220 – 240 V ac, 50 Hz, single-phase, 6A
Each power entry controller has a system ON/OFF switch and distributes ac power to all
power supply SBBs on either power bus A or power bus B.
Figure 1–13 AC Power Entry Controller

AC Power
Switch

Fuse
AC Receptacle

SHR-1150

EK–SMCPR–UG. A01

387404-001

1–23

RA8000 and ESA12000 Storage Subsystems

1.6

Power Supply SBBs
CAUTION
The subsystem requires power supply SBBs rated for at
least 180 W such as the DS-BA35X-HH. You cannot use
lower rated supplies, such as the 131 W (DS-BA35X-HA),
the 145 W (DS-BA35X-HD), or the 150 W (DS-BA35X-HF).

The 180 W shelf power supply SBB (Figure 1-14) converts the ac voltage from the power
controller to +5 V dc and +12 V dc for distribution throughout the storage subsystem. The
maximum capacity of the storage subsystem is eight power supplies.
Figure 1–14 Typical Shelf Power Supply SBB

Power
Status LED
(Green)
Power Supply
Status LED
(Green)

SHR-1151

The 4 + 1 standard configuration provides five power supplies connected to power bus A
(the black power cords). As long as any four of these supplies are operational, the
subsystem is operational. The failure of a second supply places the subsystem array
controller in a reset state. This precludes further data processing and prevents the
corruption or loss of the stored data.
With the 4 + 4 full redundant power option, the subsystem can survive multiple power
supply faults. To fully realize the benefits of the 4 + 4 configuration, connect the ac
power entry controllers to different ac distribution circuits on the same site distribution
panel. The four subsystem power supply SBBs on the left end of the shelf are connected
to ac power entry controller A. The four on the right end of the shelf are connected to ac
power entry controller B.

1–24

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

1.7

Standard (4 + 1) Power Configuration
NOTE
The black power cord at the upper right corner of the
subsystem is used only for the standard (4 + 1)
configuration. It is not used for the redundant (4 + 4)
configuration.

This standard power configuration (Figure 1-15) is the minimum configuration Compaq
recommends. If a power supply SBB fails you might be able to replace it before a second
fails. The standard power configuration has the following components:
• 5 – power supply SBBs
• 1 – ac power entry controller
Any one of the following errors will cause the subsystem to cease operation:
• Failure of two power supply SBBs
• Failure of the ac power entry controller
• Failure of the ac power source
• Failure of the PDU (ESA12000 only)

EK–SMCPR–UG. A01

387404-001

1–25

RA8000 and ESA12000 Storage Subsystems

Figure 1–15 Standard Power Configuration (4 + 1)

Power
Controller A

SHR-1153

1.8

Redundant (4 + 4) Power Configuration
A full redundant power configuration requires two separate power sources, two ac entry
power controllers, and eight shelf power supplies (Figure 1–16). Compaq recommends
this configuration to provide complete power system redundancy. Any one of the
following error conditions will cause the subsystem to cease operation:
• Failure of five power supply SBBs
• Failure of both ac power entry controllers
• Failure of both ac power sources
• Failure of both PDUs (ESA12000 only)
The primary ac source provides power to ac power entry controller A, which distributes
the ac power through the four black power cords to the four power supply SBBs on the
left end of each shelf.

1–26

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

The second, or redundant, ac source provides power to ac power entry controller B. The
four power supply SBBs on the right end of each shelf are connected to power bus B with
the four gray power cords.
Figure 1–16 Redundant Power Configuration (4 + 4)

SHR-1152

EK–SMCPR–UG. A01

387404-001

1–27

RA8000 and ESA12000 Storage Subsystems

1.9

ECB SBBs
The external cache battery (ECB) SBB provides power to the RAID array controller cache
module if system power fails. The cache module in turn provides power to the ECB
during normal operation. Compaq supplies two versions of ECBs: a single-battery ECB
for single-array controller configurations and a dual-battery ECB for dual-redundant array
controller configurations. Each battery has a power connector, status LED, and battery
disable switch (see Figure 1–17).
To check the ECB status, look at the battery status LED (one for each cache module) for
the appropriate indication (see Figure 1–17 and Table 1–3).
Figure 1–17 Dual-Battery ECB SBB

Status LED
Battery
Disable
Switch

Power
Connector
Status
LED

Battery
Disable
Switch
SHR-1154

1–28

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

Table 1–3 ECB Status Indications
LED Status

Battery Status
System power is on and the ECB is fully charged.

System power is on and the ECB is charging.

System power is off and the ECB is supplying power to the cache.

System power is off and the ECB is not supplying power to the cache.

LEGEND
=Off

= On

= Blink
fast

= Blink
slow

In the RA8000, the ECB SBB is mounted at the top of the pedestal. In an ESA12000
cabinet, the ECB SBB is mounted in the middle front of the cabinet between the BA370
enclosures. A Y-cable connects the ECB to the array controller cache module. The cache
is mounted under the array controller and is identified by the single plug in the middle of
the module (Figure 1–18). Cache module to ECB cables are factory installed.
CAUTION
The ECB cable is configured in a “Y” to allow connection to
a new battery without interrupting power to the cache
module. The cable is only to be used to connect ONE
battery to ONE cache module. Do not connect both ends of
the ECB “Y” cable at the same time except when replacing
ECBs. See chapter 5 of this manual for ECB replacement
instructions.

EK–SMCPR–UG. A01

387404-001

1–29

RA8000 and ESA12000 Storage Subsystems

Figure 1–18 Cache-to ECB-Connection
External cache
battery

Unconnected
Unconnected

Cache
module
CXO5928A

1.10 Subsystem Cooling
As shown in Figure 1–19, the subsystem is equipped with eight dual-speed blowers. These
blowers pull air in from the front of the cabinet, through the SBBs, array controllers,
EMU and PVA, and exhaust it out the rear. Backplane connectors provide +12 V dc to
operate the blowers and route the blower status signals to the shelf backplane and the
EMU.
The EMU may be set to automatically increase fan speed or set to a constant fanspeed of
high. Refer to the either the HSG80 Array Controller ACS Version 8.3 Configuration and
CLI Reference Guide or HSZ80 Array Controller ACS Version 8.3 Configuration and CLI
Reference Guide for the set_emu commands.
If set for automatic, the EMU switches all operational blowers from low-speed to highspeed when one or more of the following conditions occur:
• When a blower is removed
• When a blower malfunctions
• When a blower is not rotating at the right speed
• When the EMU detects an over-temperature condition
When the fault condition is corrected, the EMU returns the blowers to low speed.

1–30

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

Figure 1–19 Dual Speed Blower Locations

Bank 2
Bank 1

Blower 5

Blower 1

Blower 6
Blower 2

Blower 7

Blower 3

Blower 8
Blower 4

SHR-1156

EK–SMCPR–UG. A01

387404-001

1–31

RA8000 and ESA12000 Storage Subsystems

1.11 Setting the PVA SCSI Address
The SCSI bus address switch on the front of the PVA module (see Figure 1-20) controls
the SCSI address (device ID) of each storage device in the enclosure. The following
configuration rules (restrictions) apply in establishing the PVA SCSI bus address:
1) The master PVA address is always 0.
There is only one master PVA in any subsystem installation.
2) The first expansion cabinet (if used) address is 2.
The second expansion cabinet (if used) address is 3.
In an expansion subsystem, no two enclosures can have the same address.
3) Compaq does not support any PVA address that assigns SCSI bus device addresses 6
or 7 to any storage device.
4) Compaq does not support any combination of PVA addresses that assign the same
SCSI bus device address to more than one device on any SCSI bus.
Figure 1–20 PVA SCSI Address Switch
Decrease
Switch

3
Increase
Switch
SHR-1157

To decrease the configuration number:
Press the upper switch to step the address down one address at a time (decrement) until
the preferred configuration number is displayed.
To increase the configuration number:
Press the lower switch to step the address up one address at a time (increment) until the
preferred configuration number is displayed.

1–32

387404-001

EK–SMCPR–UG. A01

Chapter 1. Product Description

1.11.1 Compaq Supported Master PVA Address
Compaq supports PVA address “0” only for the master enclosure. Figure 1–21 defines the
SBB device IDs for a master enclosure, first expansion, and second expansion units. The
device addresses are denoted to the right of Figure 1–21.
Figure 1–21 Enclosure SCSI Bus Addresses for all SBB Device IDs

SCSI
Bus 2
SCSI
Bus 1

SCSI
Bus 4
SCSI
Bus 3

SCSI
Bus 6
SCSI
Bus 5

Device
Address 3/11/15

Typical Backplane Connection

ID3

ID2

Device
Address 2/10/14

ID1

Device
Address 1/9/13

ID0

Device
Address 0/8/12

ID7

EMU

PVA

Cache module

ID6

PVA
Address 0/2/3
Device
Address 7
Device
Address 6
CXO5889A

EK–SMCPR–UG. A01

387404-001

1–33

RA8000 and ESA12000 Storage Subsystems

1.11.2 Compaq Supported Expansion PVA Addresses
Compaq only supports PVA addresses 2 and 3 for expansion enclosures. Figure 1-20
defines the SBB device IDs for these two settings of the PVA SCSI bus address switch,
respectively. The use of these addresses in combination depends on the number of
enclosures and possible addressing conflicts.
CAUTION
Compaq does not support any PVA address combination
not listed in Table 1-4.

Table 1–4 Expansion Enclosure Address Combinations
Enclosure

PVA Address Switch
Setting for Two BA370
Rack Mountable units

PVA Address Switch
Setting for Three BA370
Rack Mountable units

Master

First
Expansion Unit

Second
Expansion Unit

N/A

1.11.3 Non-Supported PVA SCSI Bus Addresses
Compaq does not support the following PVA SCSI bus addresses:
• Address 1
This PVA address assigns array controller SCSI bus device addresses 6 and 7
to storage devices.
• Address 4
This PVA address assigns addresses already assigned to the master enclosure.
• Address 5
This PVA address assigns array controller SCSI bus device addresses 6 and 7
to storage devices.
• Address 7
This PVA address assigns addresses already assigned to the master enclosure.

1–34

387404-001

EK–SMCPR–UG. A01

2
Installing the RA8000 and ESA12000
Storage Subsystems
This chapter describes the site preparation and installation procedures for the RA8000 and
ESA12000 Storage Subsystems. It also describes how to install options in the ESA12000. The
chapter also contains ESA12000 expansion cabinet cabling instructions and an FRU list.

2.1 Installing the RA8000
2.1.1 RA8000 Site Preparation
The RA8000 storage cabinet is designed for installation in a Federal Communications
Commission (FCC) Class A environment. Before installing the storage cabinet, make sure
that adequate space is available in front of the cabinet for opening the front door (19
inches clearance) and around the cabinet for adequate airflow. See Figure 2–1 for specific
space requirements.
Figure 2–1 RA8000 Minimum Installation Clearance Measurements
482.60 mm
(19.00 in)

DS-SWXRA-Hx

539.75 mm
(21.25 in)

Front
Door
482.60 mm
(19.00 in)

SHR-1158

EK–SMCPR–UG. A01

387404–001

2–1

RA8000 and ESA12000 Storage Subsystems

2.1.2 Placing the RA8000 Storage Enclosure
Use the following procedure to move the storage cabinet to its designated site:
WARNING
Provide a clear path for the casters to prevent damage to
the cabinet and injury to personnel.

Roll the subsystem cabinet to the desired location.

Engage the locks on the front casters to prevent the cabinet from moving.

2.1.3 Connecting the Subsystem to the Host
Refer to Sections 2.4.3 and 2.4.6 in this chapter and to the platform-specific host adapter
and host system documents for information describing how to install the adapter and
make subsystem cable connections.

2.2

Installing the ESA12000
2.2.1 Site Preparation
Before installing the ESA12000, ensure that adequate space is available in front and in
back of the enclosure for opening the front and back doors. Also make sure there is
adequate space around the enclosure for adequate airflow. See Figure 2–2 for specific
space requirements.
Figure 2–2 Minimum Installation Clearance Measurements
595 mm
(23.4 in)

544 mm
(21.4 in)

Rear door

ESA12000
cabinet
(Top view)

Front door

917 mm
(36.1 in)

2002 mm
(78.8 in)

542 mm
(21.3 in)

CXO6669A

2–2

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.2.2 Moving the ESA12000 to It’s Designated Site
Figure 2–3 shows an ESA12000 Storage Subsystem containing two BA370 Enclosures.
Figure 2–3 ESA12000 Storage Subsystem

CXO6618A

WARNING
Use extreme caution when rolling the cabinet across the
floor. Failure to raise all leveler feet and to provide a clear
path for the cabinet's casters may result in the cabinet
tipping over and injury to personnel.

Once the cabinet rack space is configured as desired, the cabinet may be rolled to its final
installation position. Secure loose cabinet cables up and out of the way when rolling the
cabinet. Use the following procedure to move the ESA12000 to its designated site:
1.

Roll the cabinet to the desired location.

To level the cabinet, perform the following steps:

EK–SMCPR–UG. A01

387404–001

2–3

RA8000 and ESA12000 Storage Subsystems

NOTE
If you plan to join an expansion cabinet to the master
cabinet, do not lower the levelers at this time.

Loosen the locknuts on each leveler foot as shown in Figure 2–4.

b) Turn each leveler hexnut clockwise until the leveler foot contacts the floor.
c)

Adjust each leveler foot until the cabinet is level and the load is removed from
all casters. Verify that the casters spin freely.

d) Tighten the locknuts on each leveler foot.
Figure 2–4 Leveler Foot Adjustment

Locknut

Leveler
Hex Nut

Leveler
Foot
SHR-1159

2.2.3 Joining Adjacent ESA12000s
A cabinet joiner and trim kit is included with the ESA12000 expansion cabinet (DSSWXES-LA/B or DS-SWXES-TA/B). Use the joiner kit to join two ESA12000 cabinets
together to expand the storage capacity of your subsystem. Refer to the joiner and trim kit
instructions (Joiner Kit Installation Information, Document Part No.: EK–JOINR–IN.
D01) supplied with the cabinet.
After two cabinets have been joined, refer to Section 2.4.7 of this guide for cabling
instructions describing how to connect the components in the master cabinet to the
components in the expansion cabinet.

2–4

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.2.4 SW42U Cabinet Rack Mount Template
If your data center cabinet is a Compaq 42U cabinet rack, use the rack mount template
supplied with the rack-mountable enclosure to select the correct mounting holes along the
side rails of the cabinet.

2.3

BA370 Major Components
Figure 2–5 shows the major components in a ESA12000 subsystem. The configuration
shown consists of one rack-mountable BA370 which contains 24 disk drive SBBs and a
single ECB (external cache battery).
Figure 2–5 ESA12000 Subsystem Major Components

6
7
4

2
1
10

3
9
CXO6673A

EK–SMCPR–UG. A01

387404–001

2–5

RA8000 and ESA12000 Storage Subsystems

ESA12000 Major Components (Figure 2–5):
1) HSG80 Fibre Channel RAID Array controllers (2) or
HSZ80 SCSI RAID Array Controllers (2)
2) Environmental Monitor Unit (EMU) (1)
3) AC Input Power Controllers (1 standard, 2 shown in Figure 2–5)
4) Disk Drive SBB (24)
5) 180-watt power supply (5 standard, 8 shown in Figure 2–5)
6) External Cache Battery (ECB), single
External Cache Battery (ECB), dual
7) Cooling Fan (8)
8) Single-Ended I/O Modules (6)
9) Power Verification and Addressing (PVA) Module (1)
10) Cache module (2)
Also, Power Distribution Unit (2) Not shown, mounted in ESA12000 cabinet only

2–6

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.3.1 Installing Storage Building Blocks (SBBs)
This section describes the procedures for installing SBBs into a BA370 Enclosure. An
SBB can contain disk drives, power supplies, and one or two external cache battery
(ECB).
2.3.1.1 Installing Disk Drive SBBs
Additional disk drive SBBs may be installed into the BA370. You may install array
controller-compatible 16-bit disk drive SBBs.
Recommended procedure for installing disk drive SBBs is to install them starting in the
lower left corner in shelf 1 and advancing to the right. Then starting from the left, install
all the drives in shelf 2. Continue using the same procedure for shelves 3 and 4. Installing
the disk drive SBBs in this sequence distributes the SBBs evenly among the SCSI ports of
the ESA12000. Install 18 giga-byte drives first, followed by 9 giga-byte drives. Install 4
giga-byte drives last.
To install an disk drive SBB, hold it in both hands, insert the disk drive into the
designated guide slots and firmly push the disk drive into the shelf until the mounting tabs
snap into place.
Additional rules for configuring SCSI buses include:
1.

All devices and ports in the same column are on the same SCSI bus or port.

All devices in the same row (device shelf) have the same device address.

Device address 4 and 5 are used only when the Disk Drive SBB has a device address
switch.

Device addresses are determined by the backplane connector into which the device is
inserted unless the SBB has a device address switch.

For the addressing of disk drive SBBs on the SCSI bus, device addresses for each
SBB in each expansion cabinet are determined by the PVA address. The main
cabinet’s PVA address is set to PVA address 0. Device addresses in that cabinet have
addresses 0 through 3. The PVA address in the first expansion cabinet is set to PVA
address 2 and device addresses in that expansion cabinet have addresses 8 through 11.
The PVA in the second expansion cabinet is set to PVA address 3 and device
addresses for that expansion are from 12 through 15. Figure 2–6 helps to illustrate the
addressing scheme.

Figure 2–6 shows the six 16-bit SCSI buses and their associated ports and device
addresses. Refer to the Chapter 3, Configuration Rules and Restrictions, of the SWXSC–
AA Office Expansion RAID Enclosure User Guide, EK–SMCPD–UG, for additional
information on installing disk drive SBBs.

EK–SMCPR–UG. A01

387404–001

2–7

RA8000 and ESA12000 Storage Subsystems

Figure 2–6 SCSI Buses, Associated Ports, and Device Addressing

2–8

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.3.1.2 Installing Power Supply SBBs
Each power supply SBB has two green status LEDs. The upper LED indicates ac power
status and the lower LED indicates power supply status. The procedure for installing
power supplies is basically the same for installing any SBB. Refer to Figure 2–7 during
the installation.
Figure 2–7 Installing SBB Power Supply (n+1 Shown)

SBB power
supply

AC power
controller

CXO5930A

Insert the power supply SBB into the guide slots and push in until the power supply is
fully seated and the mounting tabs are engaged into the shelf.

Connect the power cord to the power supply SBB.

If ac power is off, turn ON the ac power entry controller.

Observe the power supply SBB LEDs. Both LEDs should be lit, indicating proper
power supply operation on the associated bus.

If the upper LED is not lit after installation this indicates that the power supply is not
functioning properly and needs to be replaced. If both status LEDs are not lit after the
installation, either there is a lack of ac power, the ac power entry controller has failed, or
the power supply SBB just installed has failed.

EK–SMCPR–UG. A01

387404–001

2–9

RA8000 and ESA12000 Storage Subsystems

2.3.1.3 Installing the AC Input Power Entry Controller
There are no external indications of a power controller failure on the ac power entry
controller itself. Both status LEDs on the power supply being off indicates a possible
power entry controller failure. Use the following procedure to install a new ac power
entry controller. See Figure 2–8.
Figure 2–8 Installing an AC Input Power Entry Controller

SBB power
supply

AC power
controller

CXO5930A

2–10

Press 0 on the ac power entry controller ON/OFF switch.

Insert the ac power entry controller into the BA370 enclosure.

Tighten the two retaining screws at the top and bottom of the ac power entry
controller.

Connect the ac power cord to the ac power entry controller.

Press 1 on the ac power entry controller ON/OFF switch.

Observe the power supply status LEDs for proper operation.

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.3.2 Installing the External Cache Battery (ECB)
Install the ECBs into the into the ECB shelf of the ESA12000 or at the top of the RA8000
pedestal. Figure 2–9 shows the location of the ECB shelf in the ESA12000.
Figure 2–9 ECB Shelf Location in the ESA12000

ECB

CXO6670A

EK–SMCPR–UG. A01

387404–001

2–11

RA8000 and ESA12000 Storage Subsystems

2.4

Installing Additional Components (Options)
The following sections describe the procedures for installing additional components into
the ESA12000 data center cabinet. The options available for the ESA12000 subsystem are
as follows:
•

BA370 Universal Mounting Kit (DS-BA370-XB) – Provides the components needed
to add an expansion enclosure to increase the storage capacity of your subsystem
installation. One or two BA370 enclosures can be installed in a cabinet

•

UltraSCSI Hub Shelf Mounting Kit (BA35X-RK) – Provides components to mount
a BA356 shelf into the cabinet. The hubs are installed in the BA356

•

External Cache Battery (ECB) Mounting Kit (DS-SW4XU-2U) – Provides a midcabinet mounting shelf to support one or two ECB SBBs for the controller cache
modules

•

Fibre Channel (FC) Hub Mounting Kit – Installs mounting brackets to support the
FC 12-port hub

•

Filler Panel Mounting Kit (DS-SW41U-XK) – Contains blank panels to fill empty
slots in the ESA12000 cabinet

2.4.1 Installing BA370 Universal Mounting Kit DS-BA370-XB
You may wish to install one or two BA370 rack-mountable enclosures into your SW41U
or SW600 cabinet to expand the storage capacity of your subsystem. The BA370
expansion enclosure is shipped with a universal mounting kit (DS-BA370-XB) which
contains the necessary components and hardware to install the BA370 into an 41U
RETMA cabinet or an SW600 metric cabinet.
NOTES
Since the BA370 enclosure universal mounting kit is
designed for use in more than one cabinet, there will be
parts left over upon completing the installation process. For
easy identification, a component part number is stamped on
each bracket.
The cabinet opening required to install a BA370 expansion
enclosure must be at least 30.5 in. (774.7 mm) high and 19
in. (482.6 mm) wide.

2–12

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

If you are installing a single BA370, it must be installed at the bottom of the cabinet for
stability. After the plates are installed and secured, you must install two mounting
brackets on each side of the BA370 along with a LED mounting bracket. Then, two
persons are needed to lift, mount, and secure the BA370 to the two mounting plates in the
cabinet. It is very important that you install the mounting plates and mounting brackets
properly or the BA370 will not install.
If installing two BA370 enclosures in the same cabinet, install both the lower and upper
enclosure mounting plates prior to installing the lower BA370 enclosure. This process
makes it easier to identify the correct vertical rail holes and secure the mounting plates to
the rails.
If an ECB shelf will be installed between the enclosures, Compaq recommends installing
it prior to installing the second BA370 enclosure in the upper location. Otherwise, it
might be difficult to secure the rear ECB shelf mounting brackets.
Perform the following procedures to install a single BA370 into the bottom location of the
cabinet using the universal rack mounting kit.
Open and check the contents of the BA370 universal rack mounting kit. The kit should
contain the following items:
Table 2–1 BA370 Universal Mounting Kit Parts List
Description

Qty.

Left Mounting Plate

Right Mounting Plate

BA370 Mounting Bracket

LED Bracket Assy.

Cover Plate

8-32 x 1/4 in. Pan-Head SEMS Screws

10-32 x 5/8 Pan-Head SEMS Screws

10-32 x 1/2 in. Flat-Head Machine Screw

6-32 x 3/8 in. TRUSS-Head Screw

10-32 Clip U-Nuts

Cable Ties

EK–SMCPR–UG. A01

387404–001

2–13

RA8000 and ESA12000 Storage Subsystems

2.4.1.1

Installing the Lower Enclosure

The following procedures describe the mounting kit installation process for both the 41U
RETMA and SW600 metric cabinets. Complete only the procedure that applies to your
specific cabinet design. Although the illustrations depict the installation into a 41U
RETMA cabinet, they are also used to support a kit installation into a metric cabinet.
NOTE
Count only the cabinet rail holes that are 0.281 inch in
diameter, beginning at the bottom of the cabinet. DO NOT
count the first smaller hole at the very bottom or top of the
rail.

Installing the Left-Lower Mounting Plate into a 41U RETMA Cabinet:
1.

Install five clip U-nuts on the rear leg of the left-front rail using vertical rail hole
numbers 18, 27, 40, 54, and 65 as shown in Figure 2–10.

Hold up the left mounting plate, align the dimpled holes on the mounting plate (see
Figure 2–10) with the clip U-nuts installed in step 1 and install five 10-32 x 5/8 in.
pan-head screws finger tight in these locations. Do not tighten the screws at this time.

On the front cabinet rail, install two 10-32 x 1/2 in. flat-head screw in holes 27 and
53 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install four 10-32 x 5/8 pan-head screws in the front cabinet rail using holes 17, 35,
44, and 64. Tighten the four screws.

Installing the Left-Lower Mounting Plate into a Metric (SW600) Cabinet:

2–14

Install four clip U-nuts on the rear leg of the left-front rail using vertical rail hole
numbers 3, 9, 16, and 25 as shown in Figure 2–10.

Hold up the left mounting plate, align the dimpled holes on the mounting plate (see
Figure 2–10) with the clip U-nuts installed in step 1 and install four 10-32 x 5/8 in.
pan-head screws finger tight in these locations. Do not tighten the screws at this time.

On the front leg of the left-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screw in holes 9 and 24 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install three 10-32 x 5/8 pan-head screws in the front leg of the left-front cabinet rail
using holes 2, 16, and 30. Tighten the screws.

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–10 Installing Left-Lower Mounting Plate (41U RETMA Shown)

Front rail

Clip U-nut (5X)

10-32 Flat-head
screw (2X)
Left mounting plate

10-32 Pan-head
screw (5X)

10-32 Pan-head
screw (4X)
CXO6591A

Installing the Right-Lower Mounting Plate into a 41U RETMA Cabinet:
1.

Install five clip U-nuts on the rear leg of the left-front rail using vertical rail hole
numbers 18, 30, 42, 53, and 65 as shown in Figure 2–11.

Hold up the left mounting plate, align the front column of dimpled holes on the
mounting plate (see Figure 2–11) with the clip U-nuts installed in step 1 and install
five 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the
screws at this time.

On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screws in holes 35 and 52 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet
rail using holes 17, 44, and 62. Tighten the three screws.

EK–SMCPR–UG. A01

387404–001

2–15

RA8000 and ESA12000 Storage Subsystems

Installing the Right-Lower Mounting Plate into a Metric (SW600) Cabinet:
1.

Install four clip U-nuts on the rear leg of the right-front rail using vertical rail hole
numbers 3, 10, 19, and 28 as shown in Figure 2–11.

Hold up the left mounting plate, align the rear column of dimpled holes on the
mounting plate (see Figure 2–11) with the clip U-nuts installed in step 1 and install
four 10-32 x 5/8 in. pan-head screws finger tight in these locations. Do not tighten the
screws at this time.

On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screws in holes 10 and 26 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet
rail using holes 2, 18, and 30. Tighten the three screws.

Figure 2-11 Installing the Right Mounting Plate (RETMA Cabinet Shown)
Clip U-Nut (5X)
Right mounting
plate

10-32 Flat-head
screw (2X)

10-32 Pan-head
screw(5)

10-32 Pan-head
screw (3X)
CXO6592A

2–16

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.4.1.2 Installing the LED Bracket and the BA370 Mounting Brackets
NOTE
If your enclosure arrived with an LED bracket assembly
previously installed, some procedural steps can be omitted.

Complete the following procedure to install the LED bracket assembly and enclosure
mounting brackets on a BA370 enclosure. Refer to Figures 2–12 and 2–13 as necessary
for clarity.
1.

Align the two dimples on the back of the LED bracket assembly with the front-right
edge of the BA370 enclosure (see Figure 2–12) and secure the bracket to the cabinet
using the 6-32 x 3/8 in TRUSS head screw (see Figure 2–13).

Install the LEDs at one end of the LED cable assembly (attached at top of enclosure)
by snapping the green LED into the top hole of the bracket and the amber LED into
the bottom hole.
NOTE
For 41U RETMA cabinets, use the second and fourth holes
from the front of the flange on the bracket in the following
step. For metric cabinets, use the first and third holes on the
bracket.

Attach four mounting brackets (two on the left side and two on the right side of the
BA370 enclosure) using eight 8-32 x 1/4 in pan head screws as shown in Figure 2–13
and fully tighten the screws.

EK–SMCPR–UG. A01

387404–001

2–17

RA8000 and ESA12000 Storage Subsystems

Figure 2-12 Positioning the LED Bracket on the BA370

CXO6595A

2–18

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2-13 Installing the LED Bracket and BA370 Mounting Brackets
Metric:
8 x 32
Pan-head
screws

RETMA:
8 x 32
Pan-head
screws

Metric:
8 x 32
Pan-head
screws

Mounting
brackets

RETMA:
8 x 32
Pan-head
screws

Truss-head
screw
LED
bracket
assy
Metric:
8 x 32
Pan-head
screws

Metric:
RETMA: 8 x 32
8 x 32
Pan-head
Pan-head screws
screws

Mounting
brackets

RETMA:
8 x 32
Pan-head
screws
CXO6593A

2.4.1.3 Installing the Lower BA370 Enclosure into the Cabinet
WARNING
The full BA370 enclosure weighs more than 102 kg (225
lbs.). To prevent personal injury:

EK–SMCPR–UG. A01

•

Always mount an empty enclosure into a cabinet prior
to installing devices.

•

Use at least two people to lift, align, insert, and secure
the enclosure into a cabinet.

•

Extend the cabinet stabilizer legs, if available, to
prevent the cabinet from tipping over while the
enclosure is being inserted into the upper location.

387404–001

2–19

RA8000 and ESA12000 Storage Subsystems

CAUTION
If installing a second BA370 into an operational cabinet,
ensure all power is removed from the cabinet prior to
installing the enclosure.
If installing two BA370 enclosures, always install the lower
unit first for stability and safety.

Proceed as follows to install a BA370 enclosure into the cabinet:
1.

Remove all components from the BA370 enclosure being mounted.

For cabinets with stabilizer legs:
a)

Pull out and fully extend the stabilizer legs from under the cabinet.

b) Adjust the leveling foot on each stabilizer leg so that it is firmly pressed
against the floor.
NOTE
If the enclosure does not align or slide smoothly into the
cabinet in the following procedure, then the mounting plates
inside the cabinet may not be installed properly.

Using two or more people, carefully lift the BA370 enclosure and insert its mounting
brackets into the corresponding mounting plate channels in the appropriate cabinet
location, and then slowly slide the enclosure into the cabinet.
WARNING
Once the enclosure is inserted into the mounting plate
channels, DO NOT release the enclosure until it is fully
inserted into the cabinet. The mounting brackets and the
mounting plate channels cannot support an enclosure that is
only partially inserted. Damage to equipment and personal
injury might result.

2–20

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

NOTE
For 41U RETMA cabinets, one screw is required in the
middle slot of each mounting bracket flange in the following
step. For metric cabinets, one screw is required in the top
and bottom slots of each mounting bracket flange.

Secure the BA370 to the cabinet by installing four 10-32 x 5/8 in pan-head screws
through the front flange of the mounting brackets and fully tighten the screws.

From the rear of the cabinet, secure the mounting brackets to mounting plate
channels by installing four 10-32 x 5/8 in pan head screws through the four mounting
plate tabs and fully tighten the screws.

For 41U RETMA cabinet installations, proceed to step 7. For metric cabinet
installations, proceed to step 10 and continue.

Install two clip u-nuts in the first available 1U space below the lower enclosure.

Orient the cover plate so that the extended surface faces upward as shown in Figure
2–14.

Align the holes in the cover plate over the clip u-nuts installed in previous step 7 and
secure the plate to the cabinet using two clip U-nuts and two 10-32 x 5/8 in pan head
screws and fully tighten the screws (see Figure 2–14).

10. On top of the enclosure, connect the other end of the LED cable to the connector
from the door-mounted LED cable assembly.
11. Ensure all LED cable connections are firmly seated.

EK–SMCPR–UG. A01

387404–001

2–21

RA8000 and ESA12000 Storage Subsystems

Figure 2–14 Installing the Cover Plate

CXO6596A

2.4.1.4

Installing the Upper Enclosure in the Cabinet

This procedure describes how to install a second BA370 enclosure into the top location of
the expansion cabinet. As in the previous section, separate procedures are included to
install the mounting plates in both 41U RETMA and SW600 metric cabinets. Complete
only the procedure that applies to your specific cabinet design. The illustrations in the
previous section (Figures 2–10 through 2–14) support both 41U RETMA and metric
cabinet installations.
WARNING
Never install a BA370 enclosure in the top location of the
cabinet without first installing an enclosure in the lower
location, or ensuring the lower section of the cabinet is
sufficiently weighed to provide cabinet stability.

2–22

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Installing the Left-Upper Mounting Plate into a 41U RETMA Cabinet:
1.

Install five clip U-nuts on the rear leg of the left-front cabinet rail using vertical rail
hole numbers 75, 84, 97, 111, and 112.

Hold up the left mounting plate, align the front column of dimpled holes on the
mounting plate with the clip U-nuts installed in step 1 and install five 10-32 x 5/8 in.
pan-head screws finger tight in these locations. Do not tighten the screws at this time.

On the front leg of the left-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screw in holes 84 and 110 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install four 10-32 x 5/8 pan-head screws in the front leg of the left-front cabinet rail
using holes 74, 92, 101, and 121. Tighten the four screws.

Installing the Left-Upper Mounting Plate into a Metric (SW600) Cabinet:
1.

Install four clip U-nuts on the rear leg of the left-front cabinet rail using vertical rail
hole numbers 34, 40, 47, and 56.

Hold up the left mounting plate, align the rear column of dimpled holes on the
mounting plate with the clip U-nuts installed in step 1 and install four 10-32 x 5/8 in.
pan-head screws finger tight in these locations. Do not tighten the screws at this time.

On the front leg of the left-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screw in holes 40 and 55 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install three 10-32 x 5/8 pan-head screws in the front leg of the left-front cabinet rail
using holes 33, 47, and 61. Tighten the screws.

EK–SMCPR–UG. A01

387404–001

2–23

RA8000 and ESA12000 Storage Subsystems

Installing the Right-Upper Mounting Plate into a 41U RETMA Cabinet:
1.

Install five clip U-nuts on the rear leg of the left-front rail using vertical rail hole
numbers 75, 87, 99, 110, and 122.

On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screws in vertical rail holes 92 and 109 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet
rail using vertical rail holes 74, 101, and 119. Tighten the three screws.

Installing the Right-Upper Mounting Plate into a Metric (SW600) Cabinet:
1.

Install four clip U-nuts on the rear leg of the right-front rail using vertical rail hole
numbers 34, 41, 50, and 59.

On the front leg of the right-front cabinet rail, install two 10-32 x 1/2 in. flat-head
screws in vertical rail holes 41 and 57 and tighten the screws.

Fully tighten all remaining screws installed in step 2.

Install three 10-32 x 5/8 pan-head screws in the front-leg of the right-front cabinet
rail using holes 33, 49, and 61. Tighten the three screws.

Installing the Upper BA370 Enclosure into the Cabinet
Perform the procedures described in paragraph 2.4.1.3 to install the BA370 enclosure into
the upper location of the cabinet. Take all of the precautionary measures listed in
paragraph 2.4.1.3 to safeguard personnel and prevent damage to the equipment.

2–24

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.4.2 Connecting AC Power and ECB Cables
If power is applied to the master cabinet, power down the controllers by following the
procedure contained in the DIGITAL StorageWorks HSZ80 Array Controller HSOF
Version 7.0 Service Manual. Remove ac power to the BA370 by moving the switch on the
ac power entry controllers to 0. Remove ac power to the Power Distribution Unit (PDU)
by moving the breaker switch to 0. Disconnect the power distribution unit from the ac
power source.
1.

For BA370’s with 4+4 power configurations, go to the rear of the cabinet and plug
the black ac power cord from the BA370’s ac power entry controller into the bottom
PDU that already has a black power cord plugged into it. For dual-redundancy units,
plug the gray ac power cord from the BA370’s ac power entry controller into the top
PDU in the rear of the SW600 cabinet. Attach ECB cables to the ECB and to the
cache modules The top BA370 ECB is located on the left-hand side of the ECB
shelf. The bottom BA370 ECB is located on the right-hand side of the ECB shelf.
Repeat the same procedure for the 41U RETMA cabinet (note: the PDUs are located
in the front and rear of the cabinet in the 41U).

Plug the PDU ac power cable(s) into the ac power source.

Connect the ECB Y-cables between the ECB batteries and the cache modules as
shown in Figure 2–15.

Figure 2–15 Installing ECB Y-Cables
External cache
battery

Unconnected
Unconnected

Cache
module
CXO5928A

EK–SMCPR–UG. A01

387404–001

2–25

RA8000 and ESA12000 Storage Subsystems

2.4.3 Installing the DS-BA356-SG UltraSCSI Hub 41U RETMA
Shelf Mounting Kit
The UltraSCSI Hub Shelf option is installed in a 41U RETMA cabinet using the BA356
shelf mounting kit. The kit allows you to install up to two 3-port or 5-port SCSI Hubs in
either the front and/or the rear of a cabinet containing 41 U RETMA mounting rails. The
height of the shelf is approximately 150 mm (5.9 in.).
WARNING
High voltages are present within the cabinet when power is
applied. Always turn off ac power to the cabinet and
disconnect the power cords from the wall outlet before
proceeding with this procedure.
Also, the rail edges in the cabinet are very sharp. Never
slide hands along cabinet rail edges.

Proceed as follows to install the shelf mounting kit into the cabinet:
1.

Turn off all ac power to the cabinet and disconnect the power cords.

Open the shelf mounting kit and layout the contents of the kit on a convenient
working surface.

Refer to Figures 2–16 and 2–17 install the appropriate stop bracket on each mounting
bracket throughout the installation procedure.

5.
6.

2–26

Place the first mounting bracket  behind the outer flange and against the inner
flange of the left-hand cabinet vertical wall . Ensure the mounting studs  and tabs
 are aligned with the vertical rail holes.
Slide the mounting bracket  forward to seat the studs  and tabs .

Install an M5 KEP nut  on both the top and bottom stud  and tighten fully.

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–16 Mounting Bracket Stop Positions
2

CXO6242A

Figure 2–17 Mounting Example Using Stop Position 1

6
5

4
CXO6254B

EK–SMCPR–UG. A01

387404–001

2–27

RA8000 and ESA12000 Storage Subsystems

Callout Legend (Figure 2–17)
Callout

Description

Vertical Cabinet Rail

Locking Bracket

M5 KEP Nut

Mounting Stud

Mounting Tab

Mounting Bracket

Stop Position Bracket

Repeat steps 3 through 6 for the other mounting bracket using the right-hand vertical
wall of the cabinet.

Slide the BA356 shelf into the mounting brackets until fully seated against the stop
brackets . If the correct position was used, the front of the shelf will be flush with
the rest of the shelves in the cabinet.

Position the appropriate locking bracket  over the two middle studs  of the lefthand mounting bracket , install two M5 KEP nuts , and finger tighten.

10. Adjust the locking bracket  so that the flange is firmly seated against the shelf.

11. Fully tighten the M5 KEP nuts  installed in step 9.

12. Repeat steps 9 through 11 for the other locking bracket on the right-hand mounting
bracket.
The BA356 shelf is now ready for you to mount the three or five-port UltraSCSI Hub into
the cabinet. For a single hub installation, we recommend that you mount the hub in the
right-hand slot locations of the shelf. This will minimize cable-run interference between
the hub and the controller. Detailed information describing the rack-mountable UltraSCSI
hub can be found in document EK-SMDZS-UG.
You are now ready to make the cable connections between the hub(s) and the array
controller(s). Figures 2–18 and 2–19 show examples of configuration layouts for three and
five-port hubs, respectively.

2–28

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–18 Three-Port UltraSCSI Hub Configuration Layout
Storage Subsystem
(RA8000 or ESA12000)

H8863-AA
Terminator

HSZ80
Controller
BN38C SCSI Cable or
BN37A SCSI Cable
with BN38E-0B Technology
Adapter Cable

Adapter

BN37A
SCSI Cable

HSZ80
Controller

BN38C SCSI Cable or
BN37A SCSI Cable
with BN38E-0B Technology
Adapter Cable

DWZZH-03
UltraSCSI Hub

Adapter

Host System

Host System
SHR-1101

Figure 2–19 Five-Port UltraSCSI Hub Configuration Layout
Storage Subsystem
(RA8000 or ESA12000)
HSZ80
Controller

Host System

HSZ80
Controller

Adapter

H8863 - AA
Terminator
BN37A
SCSI Cable

Host System
Adapter

BN38C SCSI Cable or
BN37A SCSI Cable
with BN38E-0B
Technology Adapter Cable

BN38C SCSI Cable or
BN37A SCSI Cable
with BN38E-0B
Technology Adapter C

Adapter

DWZZH-05
UltraSCSI Hub

Adapter

Host System

SHR-1132

EK–SMCPR–UG. A01

387404–001

2–29

RA8000 and ESA12000 Storage Subsystems

2.4.4 Installing a Filler Panel Mounting Kit in a 41U RETMA Cabinet
This procedure describes how to install the filler panel mounting kit (DS-SWX41-XK)
into the 41U RETMA cabinet.
NOTE
If a cabinet has a particular filler panel configuration that
was factory installed, do not remove the panels unless you
are reconfiguring the cabinet. If adding enclosures or
reconfiguring the cabinet, use filler panels in all open
cabinet slots.

2.4.4.1

Installation Procedure
NOTE
The panels in the mounting kit are stamped with identifying
part numbers. Also, not all of the parts are used in each
cabinet configuration.

Unpack and inspect the contents of the panel mounting kit. It should contain the
following components:
Description

Qty.

1 Unit (1U) Filler Panel

5 U Filler Panel

1U Cover Plate

10-32 x 5/8 Pan-Head SEMS Screws

U-Nut

The filler panels and cover plate in this kit mount in either a 1U space or 5U space. A
single U-space (1U) is composed of three rail holes and measures 1.75 inches in height.
Spacing between the first and second hole, and between the second and third hole in a Uspace is 0.625 in. Spacing between the third hole in a U-space and the first hole of a
second U-space is 0.5 in. Thus, a 1U space measures 1.75 in (0.625 + 0.625 + 0.5). This
three hole pattern repeats the entire length of the rails in a 41U RETMA cabinet.

2–30

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

A 5U space takes up five 1U hole patterns or 8.75 in (5 x 1.75 in).
NOTE
Correct placement of each filler panel is dependent upon
using the appropriate rail holes which make up the 1U or 5U
height.

A cover plate can be mounted in two ways:
•

Extended Face Up, if installed below the lowest enclosure within the cabinet as
shown in Figure 2–20.

•

Extended Face Down, if installed above the highest enclosure within the cabinet.

Mount the appropriate size and number of filler panels above or below the cover plate,
installing enough panels to close the opening extending to the top or bottom of the
cabinet.
1.

Identify the cover plate mounting location (below the lowest enclosure or above the
highest enclosure), using the first available 1U space.

Insert a U-nut in each cabinet rail hole opening where a panel hole corresponds with
a cabinet rail hole.

Align the panel with the U-nuts installed in the previous step and secure it only
finger-tight using SEMS screws.
NOTE
Two U-nuts and two SEMS screws are required for a cover
plate and each 1U filler panel. Four U-nuts and four SEMS
screws are required for a 5U filler panel.
Do not tighten the SEMS screws until all screws have been
started.

EK–SMCPR–UG. A01

387404–001

2–31

RA8000 and ESA12000 Storage Subsystems

Figure 2–20 Installing the Cover Plate

CXO6596A

Fully tighten the SEMS screws.

Identify the number and placement of 1U and 5U filler panels sufficient to fill the
remaining opening above or below the cover plate.
NOTE
Install filler panels from the cover plate up or down,
beginning with the first available 1U (for a 1U filler panel) or
5U space (for a 5U filler panel).
If necessary, install additional filler panels using the first
available 1U space or 5U space.

2–32

Repeat steps 2 through 5 as appropriate using a 1U or 5U filler panel until the
opening above or below the cover plate is closed.

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.4.5 Installing the DS-SWX4U-2U External Cache Battery (ECB)
Shelf Mounting Kit
This procedure describes how to install the ECB mounting kit (DS-SWX4U-2U) into an
41U RETMA cabinet. Once the kit is installed, either one or two ECB SBBs can be
mounted into the shelf.
Compaq recommends mounting the ECB shelf in the front of the cabinet directly above
the lower BA370 enclosure. The shelf is capable of holding two ECB SBBs (a single or
dual ECB module). If only one ECB (either a single or dual module) is installed, a blank
bezel must be installed in the other opening of the shelf.
NOTE
If only one BA370 enclosure is installed within the cabinet,
the space above the ECB shelf must be covered with 5U
and 1U filler panels to provide adequate air flow within the
cabinet. If two BA370 enclosures are installed, no filler
panels are required above the upper enclosure.
If two BA370 enclosures will be installed within the cabinet,
Compaq recommends installing the ECB shelf prior to
installing the second BA370 enclosure in the upper location.
Otherwise, it might be difficult to secure the rear ECB shelf
mounting brackets.

2.4.5.1

Installation Procedure (See Figure 2–21)

Perform the following procedure to install the ECB shelf into the cabinet:
NOTE
Count only the cabinet rail holes that are 0.281 inch in
diameter, beginning at the bottom of the cabinet. DO NOT
count the first smaller hole at the very bottom or top of the
rail.

EK–SMCPR–UG. A01

387404–001

2–33

RA8000 and ESA12000 Storage Subsystems

Unpack and inspect the contents of the ECB shelf mounting kit. It should contain the
following components:
Description

Qty.

ECB Shelf

Angle Bracket

SBB Filler Bezel

10-32 x 5/8 Pan-Head SEMS Screw

10-32 U-Nut

Figure 2–21 Installing the ECB Shelf Mounting Kit

CXO6599A

2–34

Install two clip U-nuts in the rear leg of the left-front cabinet rail, using holes 69 and
72 as shown in Figure 2–21.

Holding the angle bracket, align it with the holes containing the U-nuts installed in
the previous step and secure the bracket using two 10-32 x 5/8 in Pan Head screws.

Repeat steps 2 and 3 for the rear leg of the right-front cabinet rail.

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Insert four clip U-nuts in rail holes 68 and 71 on both cabinet vertical rails.

Insert the ECB shelf into the angle brackets, align the shelf with the four clip U-nuts
installed in the previous step and secure it using four 10-32 x 5/8 in Pan Head screws
(two on the left and right sides) finger-tight.

From the rear of the cabinet, secure the back of the ECB shelf to the angle brackets
by installing two 10-32 x 5/8 in Pan Head screws (one in the upper hole of the left
angle bracket and lower hole of the right angle bracket—as seen from the rear).

From the front of the cabinet, fully tighten the four screws (installed in step 6) that
hold the ECB shelf to the cabinet rails.

If only one ECB is being installed in the shelf, insert the filler bezel into the open
slot.

10. Connect the ECB Y-cable(s) between the ECB module(s) and the cache module at
the bottom of the BA370 cabinet (see Figure 2–15).

EK–SMCPR–UG. A01

387404–001

2–35

RA8000 and ESA12000 Storage Subsystems

2.4.6 Installing the Fibre Channel Hub Mounting Kit
This procedure describes how to install a fibre channel (FC) hub using a FC hub mount kit
into an ESA12000 cabinet. A FC hub can be mounted in any 1U space within a 41U
RETMA cabinet. However, Compaq recommends installing the hub below the lowest
enclosure in the cabinet. If installing more than one hub, mount subsequent hubs (up to
four) directly below the first hub (see Figure 2–22). Each hub installation requires a 1U
space. HSG80 array controller configuration examples are included following the
procedure.
Figure 2–22 Three FC-Hub Configuration Example

CXO6626A

2.4.6.1 Power Cord Installation Procedure
Before installing a FC hub, a power cord for each hub being installed must be installed.
For multiple FC hub configurations, Compaq recommends connecting primary hubs to the
primary PDU and secondary hubs to the redundant PDU.
Complete the following procedure to install a power cord for each FC hub being installed.

2–36

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Unpack and inspect the contents of the FC hub mounting kit. It should contain the
following components:
Description

Qty.

Mounting Plate Bracket

Slide Bracket

Rear Mounting Bracket

10-32 x 5/8 Pan-Head SEMS Screws

Flat Head Screw

U-Nut

Identify the FC hub mounting location.

Remove any filler panels from the installation location.

Remove all power from the cabinet.
WARNING
HIGH VOLTAGES are present in the cabinet when power is
applied. Failure to disconnect power from the cabinet may
result in personal injury or death.

Remove four screws securing the redundant PDU located directly below the
installation area.

Pull the redundant PDU outward and route the male plug end of each power cord
under the PDU. Ensure the appropriate number of power cords is routed under the
PDU (one cord per hub),

Plug each power cord into the appropriate primary or redundant PDU. For multiple
FC hub configurations, consider labeling each power cord as primary or redundant.

Gently push the redundant PDU back into the cabinet and secure the PDU using the
four screws removed in step 5.
CAUTION
Ensure the hub power cords exposed below the PDU are
not pinched and are of sufficient length for connection to the
appropriate FC hub.

EK–SMCPR–UG. A01

387404–001

2–37

RA8000 and ESA12000 Storage Subsystems

2.4.6.2 Hub Installation Procedure (See Figures 2-23, 2-24 and 2-25)
Complete the following procedure to install an FC hub into the cabinet using the FC hub
mount kit.
1.

Install two U-nuts in the first and third hole of the first U-space available under the
lowest enclosure at the rear of the cabinet (see , Figure 2-23).

Reposition or remove any cabling that might interfere with installing a hub in the
designated location.

Figure 2–23 Installing U-Nuts and Brackets

2–38

CXO6623A

Align the first rear mounting bracket flange with the two u-nuts installed in the
previous step and secure the bracket using two pan head SEMS screws .

Repeat steps 1 and 3 for the second rear mounting bracket using the right-hand
cabinet vertical rail. Ensure this bracket uses the same U-space holes as the left-hand
bracket.

Remove four flat head screws that originally came installed with the FC hub and
discard them (two screws on the left side and two on the right side).

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–24 Attaching Slide Brackets
4

1
2

CXO6624A

Insert a flat head screw (6, Figure 2–24) in the third hole from the front of the bracket
and into the same hole from which a screw was removed from the left-front hub area,
and secure it finger tight.

Insert a flat head screw (5, Figure 2–24) through the mounting plate bracket and the
second slide bracket opening from the rear.

Insert the screw into the hole from which a screw was removed from the left-rear hub
area, securing it finger tight. Ensure the mounting plate bracket position clamps onto
the slide bracket when secured to the hub.

Fully tighten both flat head screws securing the slide bracket to the hub.

10. Repeat steps 5 through 9 to connect the second slide bracket to the right side of the
hub.
11. Install two U-nuts (1, Figure 2–25) in the first and third hole of the first U-space
available under the lowest enclosure at the front of the cabinet on both the left and
right cabinet vertical rails.
NOTE
Ensure this U-space matches that used for installing the
rear mounting brackets in the back of the cabinet.

EK–SMCPR–UG. A01

387404–001

2–39

RA8000 and ESA12000 Storage Subsystems

Figure 2–25 Installing Slide Brackets

2
4

CXO6625A

12. Align the hub slide brackets (2, Figure 2–25) with both rear mounting brackets (3,
Figure 2–25) and insert the slide brackets into the mounting brackets, pushing inward
until the slide bracket flange contacts the cabinet vertical rails.
CAUTION
Faille to support the hub in a relatively level position during
installation can damage the rear mounting brackets.
Maintain this position until the slide bracket is fully secured
to the cabinet vertical rails.

13. Align the two left slide bracket holes with the two u-nuts installed in step 7 and
install two pan head SEMS screws (4, Figure 2–25), securing the bracket to the
cabinet rail.
14. Repeat step 13 for the right slide bracket.
15. Repeat steps 1 through 14 for each additional FC hub you plan to install.
16. Connect a power cord to each FC hub installed.
17. Reposition or reconnect any cabling affected during the procedures.
18. Refer to Figures 2–26 through 2–33 for specific examples of various HSG80 array
controller configurations.

2–40

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.4.6.3 HSG80 Array Controller Configuration Examples
(Figures 2-26 through 2-33)
Figure 2–26 shows the cable connections between dual FC hubs and dual array
controllers. The cables to the hubs can connect into any open connector. Unused
connections need no termination.
Figure 2–26 Dual Controller, Dual Hub Configuration
2

To host

2
3

To host
CXO6496A
1

HSG80 controllers

Fibre Channel Arbitrated Loop Hub

Multi-mode Fiber Optic Cable

EK–SMCPR–UG. A01

387404–001

2–41

RA8000 and ESA12000 Storage Subsystems

Figure 2–27 shows a block diagram of a Single Controller/Single Server configuration
using a single active port. This configuration offers no redundancy.
Figure 2–27 Single Controller/Single Server/Single Port

Server
HBA

Hub

Port 1 Port 2
Active Inactive

HSG80
CXO6627A

Figure 2–28 shows a Single Controller/Single Server configuration using two active ports
for increased performance.
Figure 2–28 Single Controller/Single Server/Dual Port Configuration
Server
HBA

Hub

Port 1
Active

Port 2
Active

HSG80
CXO6628A

Figure 2–29 shows a Dual Controller/Single Server configuration utilizing one port
on each controller which offers controller redundancy.

2–42

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–29 Dual Controller/Single Server/Single Port Configuration
Server
HBA

Hub

Port 1 Port 2
Active Inactive
Port 1 Port 2
Standby Inactive

HSG80 A

HSG80 B
CXO6629A

Figure 2–30 shows a Dual Controller/Single Server configuration utilizing both ports on
the controllers. One port is the active port on each controller, the other is in standby. This
offers controller redundancy and faster performance.
Figure 2–30 Dual Controller/Single Server/Dual Port Configuration
Server 1
HBA

Hub

Port 1 Port 2
Active Standby
Port 1 Port 2
Standby Active

HSG80 A

HSG80 B
CXO6630A

EK–SMCPR–UG. A01

387404–001

2–43

RA8000 and ESA12000 Storage Subsystems

Figure 2–31 shows a Single Controller/Dual Server configuration. This configuration
allows multiple servers to share the storage subsystem. Servers in this configuration do
not have access to the other server’s storage unless they are clustered.
Figure 2–31 Single Controller/Dual Server/Dual Port Configuration
Server 1

Server 2

HBA

Hub 1

Hub 2

Port 1
Active

Port 2
Active

HSG80
CXO6631A

Figure 2–32 shows a Multiple Server/Dual Controller configuration which offers
controller redundancy and allows the servers to share the storage subsystem.
Figure 2–32 Multiple Server/Dual Controller Configuration
Server

Server

HBA

Hub 1

Hub 2

Port 1 Port 2
Active Standby
Port 1 Port 2
Standby Active

HSG80 A

HSG80 B

CXO6633A

2–44

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–33 shows a Dual Server/Single Hub configuration which offers controller and
server redundancy.
Figure 2–33 Clustered Dual Server/Single Hub Configuration

Server 1

Server 2

HBA

Hub

Port 1 Port 2
Active Inactive
Port 1 Port 2
Standby Inactive

HSG80 A

HSG80 B
CXO6634A

EK–SMCPR–UG. A01

387404–001

2–45

RA8000 and ESA12000 Storage Subsystems

2.4.7

Cabling a Master Enclosure to an Expansion Enclosure(s)

This section describes how to connect the cables between a master enclosure and an
expansion enclosure. Perform the procedures in this section following the installation of
the joiner kit installation instructions (see paragraph 2.2.3).
NOTE
One DS-BNK37-1E cable kit is required for each expansion
unit.

2.4.7.1 Cabling Sequence
When adding an expansion BA370 unit, the following sequence is suggested.
1.

Connect all six SE I/O cables between units.

After the SE I/O cables are attached, connect the EMU communication cable.

Set the PVA address.

2.4.7.2 Attaching the SE I/O Cables
Figure 2–34 SE I/O Port Identification
6

1
CXO5819A

Ther-+e is a separate cable for each port of the controller and all cables are identical.
Refer to Figure 2–34 and attach the cables to one port at a time. SE I/O cables are
connected port-to port maintaining the same port number at each end. Port 1 of the master
unit connects to port 1 of the expansion unit(s), port 2 of the master unit connects to port
2 of the expansion unit(s), and so forth. Start with the bottom row (ports 1, 3, 5) first then
the top row (ports 2, 4, and 6).
Place the cable clip on each cable prior to attaching the cable to the I/O module. Orient
the connector on the cable to match the I/O module connector and plug the cable
connector into the I/O module connector.

2–46

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

CAUTION
Do not overtighten the jackscrews in the following step.
Over-tightening could damage the connectors.

Secure the cable by finger-tightening the cable connector jackscrews.
Slide the cable clip along the cable and press it into the hole of the I/O module bracket.
2.4.7.3 Cabling for One Expansion Unit
For a single expansion unit, cable from the terminated side of the I/O module on the
master unit to the terminated side of the expansion unit. The terminated side is identified
by the resistor symbol, it is also the LEFT-hand connector of the SE I/O module. See
Figure 2–35.
Figure 2–35 SE I/O Port Wiring (One Expansion Unit)
6

Cable A
6

1
CXO5840A

2.4.7.4 Cabling for Two Expansion Units
For two expansion units, cable from the terminated side of the I/O module on the master
unit to the terminated side of the I/O module on the first expansion unit. Then connect
from the unterminated side of that I/O module on first expansion unit to the terminated
side of the I/O module on the second expansion unit. The unterminated side is identified
by the resistor symbol enclosed in a circle with a diagonal bar across the symbol. It is also
the RIGHT-hand connector of the SE I/O module. See Figure 2–36.

EK–SMCPR–UG. A01

387404–001

2–47

RA8000 and ESA12000 Storage Subsystems

Figure 2–36 SE I/O Connections for Two Expansion Units
6

Cable A
6

Cable B
6

1
CXO5841A

2.4.7.5 Attaching the EMU Communications Cable
Figure 2–37 EMU Front Panel
EMU
COMMUNICATIONS
EMU
CONNECTOR
MAINTENANCE
CONNECTOR
EMU
COMMUNICATIONS
CONNECTOR

BLOWER
FAULT LED(S)
POWER
STATUS LED
TEMPERATURE
FAULT LED
SYSTEM FAULT LED
AND ALARM CONTROL
SWITCH

2–48

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Connect the EMU communications cable from one EMU communications port (see
Figure 2–37) of the master BA370 Enclosure to the communications port of the first
expansion unit. If there is a second expansion unit, connect an EMU communications
cable from one EMU communications port of the first expansion unit to a
communications port of the second expansion unit. See Figure 2–38.
Figure 2–38 Multiple EMUs Connected Together

CXO5820A

2.4.8 Setting the PVA Addresses
Figure 2–39 PVA Module Front Panel

EK–SMCPR–UG. A01

387404–001

2–49

RA8000 and ESA12000 Storage Subsystems

Compaq supports enclosure addresses 2 and 3, only for expansion enclosures. Figure 2–40
defines the SBB device IDs for these two settings of the PVA SCSI bus address switch.
The use of these addresses in combination depends on the number of enclosures and
possible addressing conflicts.
CAUTION
Compaq does not support any
combination not listed in Table 2–3.

enclosure

address

Table 2–3 Expansion Enclosure Address Combinations
Enclosure

2–50

PVA Address Switch
Setting for Two BA370
Rack Mountable Units

PVA Address Switch
Setting for Three BA370
Rack Mountable Units

Master

First Expansion
Enclosure

Second Expansion
Enclosure

N/A

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Figure 2–40 Expansion Enclosure SCSI Bus Addresses
SCSI
Bus 2
SCSI
Bus 1

SCSI
Bus 4
SCSI
Bus 3

SCSI
Bus 6
SCSI
Bus 5

Device
Address 3/11/15

Typical Backplane Connection

ID3

ID2

Device
Address 2/10/14

ID1

Device
Address 1/9/13

ID0

Device
Address 0/8/12

ID7

EMU

PVA

Cache module

ID6

PVA
Address 0/2/3
Device
Address 7
Device
Address 6
CXO5889A

EK–SMCPR–UG. A01

387404–001

2–51

RA8000 and ESA12000 Storage Subsystems

2.5

Installing SBBs
This section describes the procedures for installing Storage Building Blocks (SBBs) into a
BA370 rack mountable enclosure. The SBB can contain disk drives, power supplies, and
the external cache battery.

2.5.1 Installing Disk Drive SBBs
Initial and additional disk drive SBBs may be installed into the BA370 rack-mountable
enclosure. The recommended procedure for installing disk drive SBBs is to install them
into the enclosure bottom to top and from left to right as viewed from the front of the
enclosure. Refer to Section 5.7.4 in Chapter 5 of this guide for specific disk drive SBB
installation instructions.
Before beginning the disk drive SBB installation process, group the SBBs according to
capacity. If there is more than one BA370 enclosure involved, divide each of the groups
by total number of BA370 rack mountable enclosures. Now distribute the disks (by
capacity) amongst the BA370s. The goal is to spread the disks across the BA370s to
ensure that a raidset is not all on one BA370. It is not necessary to favor the master
BA370 [the one with the array controller(s)] over the expansion enclosure(s).
Example:
DISK TYPE

TOTAL NUMBER
OF DISKS BY
TYPE

NUMBER OF
DISKS IN
MASTER

NUMBER OF
DISKS IN
EXPANSION

RZ1DB, 18GB, WIDE Ultra

RZ1CB, 9GB, WIDE Ultra

RZ1BB, 4GB, WIDE Ultra

To install an disk drive SBB, hold it in both hands, insert the disk drive into the
designated guide slots and firmly push the disk drive into the shelf until the mounting tabs
snap into place.

2–52

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

Additional rules for configuring SCSI buses include:
1.

All devices and ports in the same column are on the same SCSI bus or port.

All devices in the same row (device shelf) have the same device address.

Devices installed must be listed in the HSZ80 and HSG80 Solutions Software SPD or
Release Notes.

Device address 4 and 5 are used only when the disk drive SBB has a device address
switch.

Device addresses are determined by the backplane connector into which the device is
inserted unless the SBB has a device address switch.

For the addressing of disk drive SBBs on the SCSI bus, device addresses for each
SBB in each expansion cabinet are determined by the PVA address as follows:
•

The main cabinet’s PVA address is set to PVA address 0 and device addresses in
that cabinet have addresses 0 through 3.

•

The PVA address in the first expansion cabinet is set to PVA address 2 and device
addresses in that expansion cabinet have addresses 8 through 11.

•

The PVA in the second expansion cabinet is set to PVA address 3 and device
addresses for that expansion are from 12 through 15.

Figure 2-40 helps to illustrate the addressing scheme. Figure 2-40 shows the six Ultra
Wide SCSI buses and their associated ports and device addresses.

2.5.2 Installing Power Supplies SBBs
Each power supply SBB has two green status LEDs. The upper LED indicates AC power
status and the lower LED indicates power supply status. The procedure for installing
power supplies is basically the same for installing any SBB. Refer to Figure 2-41 during
the installation.

EK–SMCPR–UG. A01

387404–001

2–53

RA8000 and ESA12000 Storage Subsystems

Figure 2-41 Installing Power Supply SBB (4+1 Shown)

SBB power
supply

AC power
controller

CXO5930A

2–54

Insert the power supply SBB into the guide slots and push in until the power supply is
fully seated and the mounting tabs are engaged into the shelf.

Connect the power cord to the power supply SBB.

Turn on the ac input power entry controller.

Observe the power supply SBB LEDs. Both LEDs should be lit, indicating proper
power supply operation on the associated bus.

If the upper LED is not lit after installation this indicates that the power supply is not
functioning properly and needs to be replaced. If both status LEDs are not lit after the
installation, either there is a lack of ac power, the ac input power entry controller has
failed, or the power supply SBB just installed has failed.

387404–001

EK–SMCPR–UG. A01

Chapter 2. Installing the RA8000 and ESA12000

2.5.3 Installing the AC Input Power Entry Controller
There are no external indications of a power controller failure on the ac power entry
controller itself. Both status LEDs on the power supply being off indicate a possible
power controller failure. Use the following procedure to install a new ac power entry
controller. Refer to Figure 2-42.
1.

Press 0 on the ac input power entry controller ON/OFF switch.

Insert the ac input power entry controller into the BA370 enclosure.

Tighten the two retaining screws at the top and bottom of the ac input power entry
controller.

Connect the ac power cord to the ac input power entry controller.

Press I on the ac input power entry controller ON/OFF switch.

Observe the power supply status LEDs for proper operation.

EK–SMCPR–UG. A01

387404–001

2–55

RA8000 and ESA12000 Storage Subsystems

2.5.4 Installing the External Cache Battery (ECB)
Install the external cache batteries (ECBs) into the ESA12000 ECB shelf mounted in the
front of the cabinet or at the top of the RA8000 pedestal. Figure 2-42 illustrates the
location of the ECB shelf in the ESA12000 cabinet.
Figure 2–42 ECB Shelf Location (ESA12000 Shown)

ECB

CXO6670A

The following procedure details external cache battery installation

2–56

Insert the external cache battery into the guide slots of the ECB shelf.

Push in the external cache battery until it seats firmly into the shelf and the mounting
tabs engage the shelf.

Connect the ECB Y-cable between the cache modules and the ECB as shown in
Figure 2–15.

387404–001

EK–SMCPR–UG. A01

3
Configuring the Storage Cabinet
This chapter describes the configuration rules and restrictions for configuring the Environmental
Monitor Unit (EMU) and Power and Verification Assembly (PVA). When specific rules and
restrictions are not provided, references are given to the proper StorageWorks documentation.

3.1

Configuring the EMU
Configuring the EMU requires connecting to the EMU communications bus and then
using the CLI SET_EMU command to establish the following:
Enclosure backplane temperature sensor set points on all enclosures
•
– SENSOR_1 or SENSOR_1_SETPOINT = DEFAULT
– SENSOR_2 or SENSOR_2_SETPOINT = DEFAULT
EMU module internal temperature sensor set point SENSOR_3 or
•
SENSOR_3_SETPOINT = DEFAULT
The blower speed controls of either FANSPEED = HIGH or FANSPEED =
•
AUTOMATIC
Compaq recommends setting the FANSPEED to AUTOMATIC, unless (1) the ambient
temperature is in excess of 38ºC (100ºF), (2) there is no air conditioning, or both
conditions exists. Should these conditions exist, Compaq recommends setting the FAN
SPEED to HIGH.
NOTE
For instructions on using these commands, refer to the CLI
Reference Manual.

EK–SMCPR–UG. A01

387404–001

3–1

RA8000 and ESA12000 Storage Subsystems

3.1.1 Connecting the EMU Communications Bus
In an expansion configuration you must establish communications between the master
EMU and each of the expansion EMUs. This is accomplished by connecting a
communications port on each EMU to a communications port on another EMU. By
establishing an EMU communications bus chain you ensure that the master EMU can
monitor and control all the enclosures in the UltraSCSI subsystem.
Compaq recommends that you use a BN25G cable no longer than 4 m (13.1 ft.) to
connect the EMUs.

3.1.2 Setting the Temperature Sensors
There are three temperature sensors in each UltraSCSI enclosure – two on the rear of the
backplane in the top middle and one mounted on the EMU module.
The EMU sensor monitors the input, or ambient, air temperature while the two enclosure
sensors monitor the exhaust air temperature. The exhaust air temperature is higher than
the ambient air temperature during normal operation.
In an expansion configuration (two or more enclosures operating with the same controller)
you only set the master EMU temperatures. The temperature set points for the other
UltraSCSI enclosures, the “slaves”, automatically change to match the setting for the
master EMU.
Users have the option of setting the temperature at which an individual sensor reports an
overtemperature condition. The desired temperature is entered in degrees Celsius within
the range of 0°C (32°F) through 49°C (120°F). See Table 3–1 for the relationship
between °C (Celsius) and °F (Fahrenheit).
Tables 3–2 and 3–3 describe the rules to adhere to when setting temperature set points.
For detailed instructions about using the set emu commands, refer to the array
controller CLI documentation.
Should the ambient temperature regularly be higher than 35°C (95°F), Compaq
recommends you select a temperature setting that ensures the continued operation without
endangering the components. Setting the temperature sensors to the highest expected
ambient temperature should ensure optimum operation.
CAUTION
To ensure proper operation, enter all temperatures in °C.
You cannot enter temperatures as fractions, decimals, or in
°F.

3–2

387404–001

EK–SMCPR–UG. A01

Chapter 3. Configuring the Storage Cabinet

Table 3–1 EMU Set Point Temperature Conversions
°C
0
1
2
3
4
5
6
7
8
9

°F
32
34
36
37
39
41
43
45
46
48

°C
10
11
12
13
14
15
16
17
18
19

°F
50
52
54
55
57
59
61
63
64
66

°C
20
21
22
23
24
25
26
27
28
29

°F
68
70
72
73
75
77
79
81
82
84

ºC
30
31
32
33
34
35
36
37
38
39

°F
86
88
90
91
93
95
97
99
100
102

°C
40
41
42
43
44
45
46
47
48
49

°F
104
106
108
109
111
113
115
117
118
120

Table 3–2 Temperature Set Point Rules – EMU Firmware Vers. 1.0 and 1.1
1.

Enter all temperatures in degrees Celsius (°C). Do not use fractions, decimals, or
degrees Fahrenheit (°F).

The EMU set point (sensor_3) temperature must be a minimum of 6°C (11°F)
greater than the highest expected ambient (intake) temperature.

The backplane set points (sensor_1 and sensor_2) must be the same temperature
and a minimum of 13°C (23°F) greater than the highest expected ambient

temperature. This requires a minimum setting of 7°C (13°F) greater than the EMU
set point.
4.

EMU firmware versions 1.0 or 1.1 cannot use the set emu
sensor_n_setpoint=default command. Instead, the following command is
required:
set emu sensor_n_setpoint=nn
((where nn is the desired temperature in °C).

EK–SMCPR–UG. A01

387404–001

3–3

RA8000 and ESA12000 Storage Subsystems

Table 3–3 Temperature Set Point Rules – EMU Firmware Vers. 1.2 and 1.3
1.

Enter all temperatures in degrees Celsius (°C). Do not use fractions, decimals, or
degrees Fahrenheit (°F).

The EMU set point (sensor_3) temperature must be a minimum of 2°C (4°F)
greater than the highest expected ambient (intake) temperature.

The backplane set points (sensor_1 and sensor_2) must be the same
temperature and a minimum of 12°C (22°F) greater than the highest expected

ambient temperature. This requires a minimum setting of 10°C (18°F) greater
than the EMU set point.
4.

3.1.3 Setting the Blower Speed Control
The UltraSCSI enclosure blowers normally operate at low speed and provide sufficient air
flow to cool the enclosure components and ensure proper operation. You can use the CLI
FANSPEED command to change the operating speed of the blowers.
• When you set FANSPEED = HIGH all blowers in all enclosures operate at high
speed
• When you enter FANSPEED = AUTOMATIC the local EMU controls the blower
speed in each enclosure
Compaq recommends using the FANSPEED = AUTOMATIC command to enable the
EMU in each enclosure to implement corrective action whenever any one of the following
error conditions occurs:
• A blower fails
• You remove a blower
• A blower is rotating too slowly to provide sufficient air flow
• The ambient air temperature (EMU intake) exceeds the user defined temperature
• Either backplane (exhaust) temperature exceeds the user-defined temperature

3–4

387404–001

EK–SMCPR–UG. A01

Chapter 3. Configuring the Storage Cabinet

When the EMU detects any of these error conditions, it will automatically switch all the
operational blowers to high speed, thereby increasing the air flow through the enclosure to
reduce the possibility of component failure. Simultaneously, the EMU can initiate the
following actions:
• Enable the audible alarm on the EMU
• Turn on the amber System Fault LED whenever the temperature exceeds one or more
set points
• Turn on the amber Temperature Fault LED
• Notify the controller of the error condition
• Start the EMU 8-minute timer when (1) all blowers in a bank are defective, or (2) a
blower is removed
NOTE
Removing a blower significantly changes the air flow pattern
within the enclosure. This can cause an over-temperature
condition in a very short time. Therefore, this condition
starts the 8-minute timer.

When you momentarily and hold press the alarm control switch, the EMU audible alarm
will turn off and the fault status LEDs remain on. At this time, the blower LEDs will
display the system fault codes (see EMU System Fault Code Displays in Chapter 4).

3.1.4 Alarm Control Switch
Whenever a power, environment, or blower error or fault condition occurs, the EMU turns
on the local audible alarm. At the same time, the alarm sounds and an amber LED in the
switch turns on. The alarm remains on until one of the following conditions occurs:
• Correction of the error condition
• The user momentarily presses the alarm control switch
When you momentarily press the alarm control switch you turn off the audible alarm for
all current error conditions in the local subsystem. The alarm remains off until one of the
following conditions occurs:
• One hour elapses
• A different fault occurs
• An existing fault clears and re-occurs

EK–SMCPR–UG. A01

387404–001

3–5

RA8000 and ESA12000 Storage Subsystems

When you press and hold the alarm control switch for at least 5 seconds you clear all the
fault codes.
NOTE
The alarm control switch does not affect either the error
condition or the error code. Only correcting the error
condition will clear the error code.

During a controlled power shut down, the alarm control switch functions as an enclosure
power switch. When a controlled power shut down is in affect, you must press the alarm
control switch to restore dc power to the enclosure.

3.2 Setting the PVA Addresses
The front panel of the PVA module is shown in Figure 3–1. Compaq supports enclosure
addresses 2 and 3, only for expansion enclosures. Figure 3–2 defines the SBB device IDs
for these two settings of the PVA SCSI bus address switch. The use of these addresses in
combination depends on the number of enclosures and possible addressing conflicts.
CAUTION
Compaq does not support any
combination not listed in Table 3–4.

enclosure

address

Figure 3–1 PVA Module Front Panel

3–6

387404–001

EK–SMCPR–UG. A01

Chapter 3. Configuring the Storage Cabinet

Table 3–4 Expansion Enclosure Address Combinations
Enclosure

PVA Address Switch
Setting for Two BA370
Rack Mountable Units

PVA Address Switch
Setting for Three BA370
Rack Mountable Units

Master

First Expansion
Enclosure

Second Expansion
Enclosure

N/A

Figure 3-2 Expansion Enclosure SCSI Bus Addresses

EK–SMCPR–UG. A01

387404–001

3–7

4
Error Analysis and Fault Isolation
This chapter describes the errors, faults, and significant events that can occur during the storage
subsystem initialization and normal operation. The chapter provides a description of the events
and how to respond. The error and event descriptions isolate failures to the field replaceable unit
(FRU). Refer to Chapter 5 for a list of FRUs.

4.1

Storage Subsystem Error Reporting
On the subsystem, multiple light emitting diodes (LEDs) display error conditions. The
two most easily observed are located on the subsystem front panel (Figure 4–1). These
two LEDs are simple go–no go indicators. The green LED is the System OK LED; the
amber LED is the Fault LED.
When the Fault LED is ON, you must check all the other status LEDs to determine the
cause of the error:
• the EMU front panel (see Tables 4–3 and 4–4)
• the disk drive SBB LEDs (see Table 4–5)
• the power supply LEDs (see Table 4–6)
• the array controller LEDs to isolate the error condition to a component (see the
HSG80 or HSZ80 Array Controller ACS Version 8.x Maintenance and Service Guide)

EK–SMCPR–UG. A01

387404–001

4–1

RA8000 and ESA12000 Storage Subsystems

Figure 4–1 Storage Subsystem Status LEDs
(RA8000 Pedestal Shown)

System OK
(Green)
Fault
(Amber)

SHR-1160

NOTE
The ESA12000 cabinet has subsystem status LEDs
mounted in the cabinet door and in a small panel above or
to the top right side of each BA370 Rack Mountable
Enclosure. The cabinet door LEDs permit the operator to
determine the subsystem status without opening the cabinet
door.

4–2

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

Table 4–1 Subsystem Status LEDs
Symbol

Condition
Operating normally; no error conditions.

A failed subsystem component exists.
Recommended Corrective Actions
1.

2.
3.

Check the EMU control panel LEDs to
determine an overtemperature condition,
a blower problem, or a power problem.
Replace the defective blower or power
components.
Check the individual disk drive SBBs for
an error condition.
Check the system terminal for error
messages.

The subsystem does not have power applied
or is in a RESET state.
Recommended Corrective Action
1.
2.
3.

EK–SMCPR–UG. A01

Check the EMU control panel LEDs to
determine which component has failed.
Check that at least four operational SBB
power supplies exist.
Check the system terminal for error
messages.

387404–001

4–3

RA8000 and ESA12000 Storage Subsystems

4.2

EMU Error and Fault Status Reporting
The EMU processes subsystem status reports, and when an error condition occurs, notifies
you of the problem using the EMU audible alarm and the status LEDs (system,
temperature, power, blower) located on the EMU front panel (see Figure 4–2).
Whenever the audible alarm sounds, check the EMU status LEDs to determine the
problem.
NOTE
Should the audible alarm sound, but the status LEDs not
indicate an error condition, the error condition may no
longer exists. However, you should always check the array
controller error log to verify the error condition no longer
exists.

The EMU reports the subsystem status, including error conditions, to the array controller,
which records this information in the error log and displays the status on the array
controller console.
Figure 4–2 EMU Front Panel Layout

System
Fault

Power

Temperature

Blowers

Alarm Control
Switch
SHR-1161

4–4

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

4.3

EMU Subsystem Status LEDs

Table 4–2 shows the possible EMU status LED displays. LEDs that blink or flash at a
one-second or greater interval are considered ON.
Table 4–2 EMU Subsystem Status LEDs
Symbol

Condition
ON (or blinking slowly at an interval of 1 second or
more)
OFF

Flashing (blinking at an interval of less than 1
second)

4.3.1 EMU Status LEDs
The EMU status LEDs (see Table 4–3) display the status of the following: the enclosure
(system fault), the temperature (overtemperature), the error conditions (enclosure fault),
and the individual blowers and banks of blowers. When the enclosure is functioning
properly, only the Power LED is ON. Table 4–3 describes:
• The EMU status LED displays
• The enclosure status associated with each display
• The probable cause of the error condition
• The actions recommended to correct the problem
NOTE
Not all possible combinations of LED displays can be
shown. Therefore, only a representative sampling of the
possible displays appears in Table 4–3.

EK–SMCPR–UG. A01

387404–001

4–5

RA8000 and ESA12000 Storage Subsystems

Table 4–3 EMU Status Displays
EMU LED Display

EMU Status
Operational Enclosure
The subsystem is fully operational.
The power supplies and blowers are
functioning properly. The EMU intake and
backplane exhaust air temperatures are within
user-specified limits.
Overtemperature Condition
Probable Cause 1—A temperature in one or
more enclosures is above the user-specified
limit.
Determine and correct the cause of this
condition quickly to prevent an
overtemperature condition from inducing a
subsystem RESET or failure.
Probable Cause 2—A temperature set point is
too low for this environment.
Change the temperature set point.
Nonoperational Enclosure
Probable Cause 1—Either + 5 V dc or 12 V dc
out of range.
Observe the individual power supply status
LEDs to determine the defective power supply
and replace it.
Probable Cause 2—TERMPOWER less than
+ 4.5 V dc on one or more I/O modules.
Replace the I/O modules displaying a
TERMPOWER LED OFF indication.

4–6

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

Table 4–3 EMU Status Displays (continued)
EMU LED Display

EMU Status
Single Blower Fault
Operational blowers are running at high speed.

Missing Blower Fault or Multiple Blower
Faults
Operational blowers are running at high speed.
Probable Cause 1—A blower is removed.
Replace the missing blowers.
Probable Cause 2—All blowers in one bank
are not operating. Remove and install blowers
correctly within 8 minutes.
Probable Cause 3—Multiple blowers are
installed incorrectly.
Remove and install blowers correctly within 8
minutes.
Comment—In this example, one of the
following conditions exist in shelf bank 1:
•
A blower is removed.
•
Two or more blowers are not operating.
Failure to replace the missing or defective
blowers within 8 minutes might result in the
enclosure entering standby power mode.

EK–SMCPR–UG. A01

387404–001

4–7

RA8000 and ESA12000 Storage Subsystems

Table 4–3 EMU Status Displays (continued)
EMU LED Display

EMU Status
Configuration Error (Example 1)
Probable Cause 1—Configuration error.
See the Configuration Fault Code Reporting
section for the specific error condition.
Probable Cause 2—Slave EMU cannot
communicate with the master EMU.
See the Configuration Fault Code Reporting
section for the specific error condition.
Probable Cause 3—External SHELF_OK
signal indicates error.
See the Configuration Fault Code Reporting
section for the specific error condition.
8

Configuration Error (Example 2)
Configuration errors listed in probable causes 1
through 4 also sound the audible alarm.

CXO6546A

Probable Cause 1—Invalid cache module
installed.
Verify that the cache module is the proper
model.
Probable Cause 2—Defective cache module.
Replace the defective cache module.
Probable Cause 3—Defective ECB.
Replace the defective ECB.
Probable Cause 4—Misconfigured array
controller setup. Setup as dual redundant, but
only one array controller is running. Setup as
non-dual-redundant, but two array controllers
are running.
Reconfigure the array controller setup.
Probable Cause 5—Defective or
misconfigured disk drive.
Replace or reconfigure the applicable disk
drive.

4–8

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

4.3.2 Configuration Fault Code Reporting
The system fault, temperature, power, and blower LEDs cannot display all the possible
system faults. Therefore, a flashing system fault LED indicates that the blower LEDs are
displaying a two-digit, hexadecimal fault code. The upper LEDs (8–5) display the first
digit (the most significant digit); the lower LEDs (4–1) display the second digit (the least
significant digit).
The EMU can display configuration fault codes on the blower LEDs (see Table 4–4) only
when the system fault LED is flashing. To view fault codes on the blower LEDs, you
must press and hold the alarm control switch.
Once you press the alarm control switch, the EMU initiates the following actions:
1. Displays the first reported hexadecimal fault code on the blower LEDs three times in
succession.
• The LEDs display the first reported fault code the first time for one second, then
go off
• The LEDs display the first reported fault code the second time for one second,
then go off
• The LEDs display the first reported fault code the third time for one second, then
go off
2. Displays the next reported fault code three times.
3. Displays all fault codes in sequence. Then, the cycle starts over.
Release the alarm control switch to stop the fault code display.
NOTE
When multiple corrective actions are listed, complete the
first procedure and see if the problem is corrected. If the
problem still exists, complete the second procedure.

EK–SMCPR–UG. A01

387404–001

4–9

RA8000 and ESA12000 Storage Subsystems

Table 4–4 EMU Fault Code LED Displays
Display

Fault Code, Cause, Corrective Action
Fault Code 01
One of the following Boot ROM error conditions
exists:
1. A Boot ROM Signature failure. Replace the
EMU.
2. A Boot ROM Checksum failure. Replace the
EMU.
Fault Code 02
Both microcode images are bad.
1. Load microcode image into the EMU from a
PC or maintenance terminal.
2.

Replace the EMU.

Fault Code 03
Either a PVA SCSI ID switch setting is invalid (set
to 1, 4, 5, 6, or 7) or there is no master enclosure
identified (SCSI bus ID = 0).
1. Ensure PVA SCSI ID switch settings are as
follows:
•
Master enclosure—0
•
First expansion enclosure—2
•
Second expansion enclosure—3
2. If any PVA SCSI ID switch setting is
changed, the array controllers must be
RESET to recognize the new setting.
3. Replace each of the PVAs in sequence (first,
the master, then the expansions) until the
fault condition clears.

4–10

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

Table 4–4 EMU Fault Code LED Displays (continued)
Display

Fault Code, Cause, Corrective Action
Fault Code 04
Master EMU cannot communicate with expansion
EMU.
1. Ensure PVA SCSI ID switch settings are as
follows:
•
Master enclosure—0
•
First expansion enclosure—2
•
Second expansion enclosure—3
2. If any PVA SCSI ID switch setting is
changed, the array controllers must be
RESET to recognize the new setting.
3. Ensure EMU cables are properly connected.
4. Disconnect and reconnect each EMU cable
one at a time. Replace the defective cable.
5. Replace the EMU.
Fault Code 05
Master EMU cannot communicate with the array
controller.
1. Replace the EMU.
2. Replace the array controller.
Fault Code 06
One or more temperature sensors indicate an
“invalid” temperature–one that is greater than
49ºC (120ºF).
1. Replace the EMU.
2. Instruct Field Service that temperature
sensors need replacing.

EK–SMCPR–UG. A01

387404–001

4–11

RA8000 and ESA12000 Storage Subsystems

Table 4–4 EMU Fault Code LED Displays (continued)
Display

Fault Code, Cause, Corrective Action
Fault Code 07
Invalid configuration.
Requires an array controller-specific action (see
the HSG80 or HSZ80 Array Controller ACS

Version 8.x Maintenance and Service Guide).
Fault Code 08
Two PVA SCSI ID switch settings are the same.
1. Ensure the PVA SCSI ID switch settings are
as follows:
•
Master Enclosure—0
•
First Expansion Enclosure—2
•
Second Expansion Enclosure—3
2. If any PVA SCSI ID switch setting is
changed, the array controllers must be
RESET to recognize the new setting.
3.

Replace each of the PVAs in sequence (first,
the master, then the expansions) until the
fault condition clears.

Fault Code 09
An EMU is installed in a PVA slot.
Remove the EMU from the PVA slot and install it
into the slot immediately to the left.
Error Code 0A
No PVA is installed.
Install a PVA.

4–12

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

Table 4–4 EMU Fault Code LED Displays (continued)
Display

Fault Code, Cause, Corrective Action
Fault Code 0B
Array controller fault.
Requires an array controller-specific action (see
the HSG80 or HSZ80 Array Controller ACS

Version 8.x Maintenance and Service Guide).
8

2 1

710-57L

Fault Code 0C
One or more defective power supplies.
Observe all power supply status LEDs.
Replace any power supply with the lower (power
supply status) LED turned OFF.
Fault Code 0D
The master enclosure SCSI bus ID address is
incorrect or an array controller is installed in an
expansion enclosure.
1. Change the master enclosure SCSI bus ID
to 0. The array controller must be RESET to
recognize the new setting.
2. If necessary, remove the array controller
from the expansion enclosure and install it in
the master enclosure.
Fault Code 0E
EMU memory test failed.
Replace the EMU.

EK–SMCPR–UG. A01

387404–001

4–13

RA8000 and ESA12000 Storage Subsystems

Table 4–4 EMU Fault Code LED Displays (continued)
Display

Fault Code, Cause, Corrective Action
Fault Code 0F
Initial Display
Less than four operational power supplies
remain.
Replace the defective power supplies.
Standby Power Mode Display
Power has been removed from the enclosure.
Comment—The EMU places the system in the
standby power mode for this fault indication. After
replacing the defective power supplies,
momentarily press the alarm control switch to
restore dc power to the enclosure.
The initial display appears when a fault is
detected.
The standby power mode display appears after
the EMU removes dc power from the enclosure.
Fault Code 10
EMU diagnostic program is loaded.
The audible alarm is ON continuously and it
cannot be cleared by pressing the alarm control
switch.
1. Load new microcode. The array controllers
must be RESET to recognize the new
microcode.
2. Replace the EMU with one containing the
proper microcode. The array controllers must
be RESET to recognize the new microcode.

4–14

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

4.3.3 Shutting Down the Subsystem
Implementation of the controlled power shutdown ensures that subsystem components are
properly protected when significant error conditions exist. The shutdown can be initiated
either automatically by the EMU or by you.
A controlled shutdown accomplishes the following:
• Disconnects all the power supply output voltages from the enclosure power buses. This
includes the internal TERMPOWER on the I/O modules. The power supplies remain
operational as long as the ac input voltage is present.
• Supplies a “trickle” voltage to the EMU to maintain the controlled power shutdown
state.
• Enables the alarm control switch power on function
Two types of shutdowns exist:
• Automatic shutdown using standby power mode
• Full power shutdown
See Chapter 5, “Replacing Components,” for a full description and for both procedures.

4.4

Array Controller Error Conditions
The HSG80 and HSZ80 array controller operator control panels (OCPs) contain the
following switches and indicators (see Figure 4–3):
• Array controller reset switch with an embedded status LED
• Six SCSI bus status LEDs (port LEDs)
Figure 4–3 HSG80 and HSZ80 OCP Display
Reset button/
LED

Port button/
LED

CXO6216A

EK–SMCPR–UG. A01

387404–001

4–15

RA8000 and ESA12000 Storage Subsystems

The array controller LED indicates the status of the controller. This LED flashes
constantly once the array controller initialization process is complete and the software is
functioning. Pressing this switch resets the array controller.
The port LEDs are OFF when the bus is functioning properly. A port LED that is ON or
FLASHING indicates that a device on the bus is not functioning properly.

4.5

Storage Device Fault Notification
The disk drive SBBs two front panel LEDs display the status of the drives using one of
three possible states (ON, OFF, or FLASHING). The green Device Activity LED is ON or
FLASHING when the SBB is active (processing data). The amber Device Fault LED is
either ON or FLASHING to indicate an error condition or configuration problem. Table
4–5 defines the various operational conditions of the storage SBB status LEDs. Table 4–6
lists the SBB LED display combinations and the corresponding drive status.
CAUTION
Removing a disk drive SBB when the Device Activity LED is
ON or FLASHING can cause the loss or corruption of data.

Figure 4–4 Disk Drive SBB LEDs

Device
Activity
(Green)
Device
Fault
(Amber)

SHR-1162

4–16

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

Table 4–5 Storage SBB Status LEDs Conditions
Symbol

Condition
ON (or blinking slowly at an interval of 1 second or more)
710-60C

OFF
710-60E

Flashing (blinking at an interval of less than 1 second)
710-60D

Table 4–6 Storage SBB Status LED Displays
LED Display

Storage SBB Status
The storage SBB is operating normally (no fault condition).

The storage SBB is operating normally. The unit is inactive
and no fault is present.
The storage SBB is probably not responding to control
signals. Replace the SBB.
The storage SBB is active and in spin-down status
because of a fault. Replace the SBB after the device has
spun down.
Two conditions are possible:
1.

In response to a fault bus message, the array
controller is spinning down the device. Replace the
SBB after the device has spun down.

A signaling response to a user initiated array controller
“locate” command.

710-60A

The storage SBB is inactive and spun down. Replace the
SBB.
710-60B

EK–SMCPR–UG. A01

387404–001

4–17

RA8000 and ESA12000 Storage Subsystems

4.6

Power Supply Fault Notification
Each power supply SBB has two green LEDs that display the status of the power supply.
Table 4–6 describes the state of these LEDs, the status being reported, and the
recommended corrective action.
Figure 4–5 Power Supply SBB Status LEDs

Power
Status LED
(Green)
Power Supply
Status LED
(Green)

SHR-1163

Table 4–7 Power Supply SBB Status LEDs
Symbol

Condition

710-60C

ON (or blinking slowly at an interval of 1 second or
more)
OFF

710-60E

4–18

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

Table 4–8 Power Supply SBB Status LED Displays
LED Display

Power Supply SBB Status
The power supply is functioning properly.

A blower or power supply fault occurred:
•
Check the operating condition of each blower.

•

Replace the defective blower.
Check all power supplies for one with both LEDs in the
OFF state.
Replace this power supply.

A power fault has occurred:
1. There is no ac power.
Check the ac power source.
2. This power supply has failed.
Replace the power supply.

EK–SMCPR–UG. A01

387404–001

4–19

RA8000 and ESA12000 Storage Subsystems

4.7

I/O Module and Expansion Cable Error Conditions
The EMU monitors the status of all the I/O modules for the following error conditions:
• The installation of incompatible I/O modules
• A TERMPOWER problem
Either of these error conditions might cause the array controller to cease operation
without implementing procedures to protect the data.

4.7.1 I/O Module or Expansion Cable
Follow these procedures to remove an I/O module or expansion cable:
CAUTION
Before removing an I/O module or an expansion cable,
completion of the following procedures is mandatory to
prevent inducing an array controller error condition.

1.
2.

Clear the cache and shut down the array controller.
Turn OFF the subsystem power.
NOTE
For dual-redundant array controller configurations, you can
remove the I/O module while the subsystem is running
using the field replacement utility (FRUTIL). Refer to
“Replacement Procedures” in the HSG80 or HSZ80 Array
Controller ACS Version 8.x Maintenance and Service
Guide.

4.7.2 Incompatible I/O Modules
Only when all I/O modules are the same type can an UltraSCSI RAID subsystem function
properly. The Compaq UltraSCSI array controller only supports single-ended, UltraSCSI
buses. Therefore, you can only use single-ended I/O modules. Installing any other module
type creates an error condition that the EMU reports to the array controller.

4.7.3 No I/O Module Installed
Failure to install an I/O module, or installing an I/O module incorrectly, automatically
disables the SCSI bus within the enclosure. Without an I/O module, the TERMPOWER
becomes unavailable to the internal SCSI bus and the bus cannot function.

4–20

387404–001

EK–SMCPR–UG. A01

Chapter 4. Error Analysis and Fault Isolation

4.7.4 TERMPOWER Errors
The I/O module displays the TERMPOWER status for both the internal and the external
bus (see Figure 4–6). The nominal TERMPOWER voltage for both buses is +5 V dc.
Figure 4–6 I/O Module LEDs

External
TERM POWER
disable LED

Internal
TERM POWER
disable LED
CXO5947A

•

The green internal and external TERMPOWER LEDs are ON during normal operation
Whenever a TERMPOWER overcurrent condition exists, the associated LED is OFF
When an internal TERMPOWER overcurrent condition occurs, you must replace the I/O
module. When an external TERMPOWER overcurrent condition occurs, you must first
replace the associated cable. If this does not correct the problem, then replace the I/O
module.

•

EK–SMCPR–UG. A01

387404–001

4–21

5
Replacing Components
This chapter describes the procedures to remove and install the field replaceable units (FRUs) in
the RA8000/ESA12000. The FRUs are listed and shown in the last section of the chapter.

5.1

Replacing an Array Controller, Cache Module, or External Cache Battery
NOTE
For dual-redundant-array controller configurations, you can
use FRUTIL to replace the “other controller,” to replace the
other cache module, and to replace the external cache
battery with the cabinet powered on. See the appropriate
HSG80 Array Controller ACS Version 8.x Maintenance and
Service Guide or the HSZ80 Array Controller ACS Version
8.x Maintenance and Service Guide for the procedures.

5.1.1 Tools Required
You need the following tools to remove or replace the array controller module:
ESD (electrostatic discharge) strap
•
•

Small blade screwdriver for Trilink and external cache battery cable fasteners

5.1.2 Precautions
In general, you should follow routine ESD protection procedures when handling array
controller modules and cache modules and when working around the cabinet and shelf
that houses the modules.
Follow these guidelines to further minimize ESD problems:
•

Use ESD wrist straps, antistatic bags, and grounded ESD mats when handling array
controllers and cache modules

•
•

Attach the lead on the ESD strap to a convenient cabinet grounding point
After removing a module from the shelf, place the module into an approved antistatic
bag or onto a grounded antistatic mat

•

Remain grounded while installing a replacement module

EK–SMCPR–UG. A01

5–1

RA8000 and ESA12000 Storage Subsystems

CAUTION
Follow program card guidelines or damage to the program
card and array controller software can result.

5.2

Preparing Your Host System
Before starting the upgrade process you will need to prepare your system. This includes
performing a complete system backup and shutting down the system.

5.2.1 Back Up the System
As a precaution before starting this procedure you should backup the entire system,
especially data stored on the RAID Array.

5–2

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

5.3

Array Controller Replacement
Figure 5-1 Array Controllers and Cache Modules
PVA

EMU
Controller
module A
Controller
module B

Lever
1

Cache
module A

Cache
module B
CXO5925B

5.3.1 Array Controller Removal
Use the following steps to remove an array controller:
1.

From the host console, dismount the logical units in the subsystem. If you are using a
Windows NT® platform, shut down the server.

If the array controller is operating, connect a PC or terminal to the array controller’s
maintenance port. If the array controller is not operating, go to step 5.

Run FMU to obtain the last failure codes, if desired.
CAUTION
The cache module may contain data if the array controller
crashed and you weren’t able to shut it down with the
SHUTDOWN controller command.

Shut down the array controllers. In single array controller configurations, shut down
“this controller.” In dual-redundant controller configurations, shut down the “other
controller” first, then shut down “this controller” with the following commands:

EK–SMCPR–UG. A01

5–3

RA8000 and ESA12000 Storage Subsystems

SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
When the array controller shuts down, its reset button and the first three LEDs are lit
continuously. This process may take several minutes, depending on the amount of
data that needs to be flushed from the cache modules.
CAUTION
Electrostatic discharge (ESD) can easily damage a array
controller. Wear a snug-fitting, grounded ESD wrist strap.

Remove the program card’s ESD cover and program card. Save them for the new
array controller.
NOTE
One or two host bus cables [HSG80] or one or two trilink
connectors with host bus cables (or terminators) [HSZ80]
may be attached, depending on the configuration.

Remove the host bus cables from the array controller [HSG80], or remove the trilink
connectors from the array controller, but don’t disconnect the host bus cables (or
terminators) from the trilink connectors [HSZ80].

If connected, disconnect the PC or terminal from the array controller’s maintenance
port.

Disengage both retaining levers and remove the array controller, then place the array
controller into an approved antistatic bag or onto a grounded antistatic mat.

5.3.2 Array controller Installation
Use the following steps to install an array controller:
CAUTION
ESD can easily damage an array controller. Wear a snugfitting, grounded ESD wrist strap.
Make sure you align the array controller in the appropriate
guide rails. If you do not align the array controller correctly,
damage to the backplane can occur.

5–4

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

Insert the new array controller into its slot, and engage its retaining levers.
NOTE
One or two host bus cables [HSG80] or one or two trilink
connectors with host bus cables (or terminators) [HSZ80]
may be attached, depending on the configuration.

If your array controller is an HSZ80, remove the trilink connectors from the new
array controller and transfer the host bus cables (with trilinks attached) to the new
array controller. If the subsystem is equipped with an HSG80, connect the fibre
channel containing the FC cables to the new HSG80 array controller.

Connect a PC or terminal to the array controller’s maintenance port.

Remove the program card’s ESD cover.

Press and hold the reset button while inserting the program card into the new array
controller. Release and replace the ESD cover.

When the CLI prompt reappears, display details about the array controller you
configured. Use the following command:
SHOW THIS_CONTROLLER FULL

Configure the array controller as described in the appropriate HSG80 Array
Controller ACS Version 8.x Configuration and CLI Reference Guide or the HSZ80
Array Controller ACS Version 8.x Configuration and CLI Reference Guide.
NOTE
If the array controller you’re installing was previously used
in another subsystem, purge its old configuration. See
“CONFIGURATION RESET” in the appropriate HSG80
Array Controller ACS Version 8.x Configuration and CLI
Reference Guide or the HSZ80 Array Controller ACS
Version 8.x Configuration and CLI Reference Guide.

To restore a configuration saved with the SAVE_CONFIGURATION switch, press
the reset button and device port button 6.

Using CLCP (Code Load Code Patch), install any patches that you had installed on
the previous array controller as described in the appropriate HSG80 Array Controller
ACS Version 8.x Maintenance and Service Guide or the HSZ80 Array Controller ACS
Version 8.x Maintenance and Service Guide.

EK–SMCPR–UG. A01

5–5

RA8000 and ESA12000 Storage Subsystems

10. Restart the server if you are using a Windows NT platform. Mount the logical units
on the host.
11. Set the subsystem date and time with the following command:
SET THIS_CONTROLLER TIME=dd-mmm-yyyy:hh:mm:ss
12. Disconnect the PC or terminal from the array controller’s maintenance port.
13. In a dual-redundant array controller configuration, repeat the procedure for the “other
controller.”

5.4

Cache Module Replacement
5.4.1 Cache Module Removal
Use the following steps to remove a cache module:
1.

From the host console, dismount the logical units in the subsystem. If you are using a
Windows NT® platform, shut down the server.

If the array controller is operating, connect a PC or terminal to the array controller’s
maintenance port.
If the array controller is not operating, go to step 5.

Run FMU to obtain the last failure codes, if desired.

Shut down the array controllers. In single array controller configurations, shut down
“this controller.” In dual-redundant array controller configurations, shut down the
“other controller” first, then shut down “this controller” with the following
commands:
SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
When the array controller shuts down, its reset button and the first three LEDs are lit
continuously. This process may take several minutes, depending on the amount of
data that needs to be flushed from the cache modules.
CAUTION
Electrostatic discharge (ESD) can easily damage a cache
module. Wear a snug-fitting, grounded ESD wrist strap.

5–6

Disable the ECB by pressing the battery disable switch until the status light stops
blinking—about five seconds.

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

CAUTION
The ECB must be disabled—the status light is not lit and is
not blinking—before disconnecting the ECB cable from the
cache module. Failure to disable the ECB could damage the
cache module.

Disconnect the ECB cable from the cache module.

Disengage both retaining levers and remove the cache module. Place the cache
module into an antistatic bag or onto a grounded antistatic mat.

5.4.2 Cache Module Installation
Use the following steps to install a cache module:
CAUTION
ESD can easily damage a cache module. Wear a snugfitting, grounded ESD wrist strap.
Make sure you align the cache module in the appropriate
guide rails. If you do not align the cache module correctly,
damage to the backplane can occur.

Insert the new cache module into its slot and engage its retaining levers.
CAUTION
The ECB must be disabled—the status light is not lit and is
not blinking—before connecting the ECB cable to the cache
module. Failure to disable the ECB could result in ECB
damage.

Connect the ECB cable to the new cache module.

If not already connected, connect a PC or terminal to the array controller’s
maintenance port.

Restart the array controller by pressing its reset button.

When the CLI prompt appears, display details about the array controller you
configured. Use the following command:
SHOW THIS_CONTROLLER FULL

Restart the server if you are using a Windows NT platform. Mount the logical units
on the host.

EK–SMCPR–UG. A01

5–7

RA8000 and ESA12000 Storage Subsystems

Set the subsystem date and time. In single array controller configurations, set “this
controller.” In dual-redundant array controller configurations, set “this controller”.
and the “other controller” with the following commands:
SET THIS_CONTROLLER TIME=dd-mmm-yyyy:hh:mm:ss
SET OTHER_CONTROLLER TIME=dd-mmm-yyyy:hh:mm:ss

5.5

Disconnect the PC or terminal from the array controller’s maintenance port.

External Cache Battery Replacement
Figure 5-2 External Cache Battery Storage Building Block

Battery disable switch
Status LED

US
STAT
OFF
UT

HE
CAC ER
W
PO
HE
CAC ER
W
PO

US
STAT
OFF
UT

Faceplate and controls
for second battery
(dual-battery configuration only)

ECB Y cable

~
CXO6305B

Use the following steps to replace the external cache battery with the cabinet powered off:
1.

If the array controller and cache module are not operating, go to step 4. Otherwise, go
to the next step.

Connect a PC or terminal to the array controller’s maintenance port. The array
controller to which you’re connected is “this controller.”
Shut down the array controllers. In single array controller configurations, shut down
“this controller.” In dual-redundant array controller configurations, shut down the
“other controller” first, then shut down “this controller” with the following
commands:

SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER

5–8

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

When the array controllers shut down, their reset buttons and their first three LEDs
are lit continuously. This may take several minutes, depending on the amount of data
that needs to be flushed from the cache modules.
4.

Turn off the power to the subsystem.

Insert the new ECB SBB into its slot.
CAUTION
The ECB cable has a 12-volt and a 5-volt pin. Improper
handling or misalignment when connecting or disconnecting
could cause these pins to contact ground, resulting in cache
module damage.

Connect the open end of the ECB Y cable to the new ECB.

Restore power to the subsystem. The array controller automatically restarts.

Disconnect the ECB cable from the old ECB.

Start FRUTIL with the following command:
RUN FRUTIL
FRUTIL displays the following:
Do you intend to replace this controller’s cache battery? Y/N

10. Enter Y(es). FRUTIL displays the following:
If the batteries were replaced while the cabinet was powered down, press
return.
Otherwise follow this procedure:
WARNING: Ensure that at least one battery is
connected to the Y cable at all times
during this procedure.
1. Connect the new battery to the unused end
of the 'Y' cable attached to cache A [or B].
2. Disconnect the old battery. Do not wait for the
new battery's status light to turn solid green.
3. Press return.

11. Press return.
FRUTIL displays the following:
Updating this battery's expiration date and deep discharge history.
Field Replacement Utility terminated.

12. Disconnect the PC or terminal from the array controller’s maintenance port.

EK–SMCPR–UG. A01

5–9

RA8000 and ESA12000 Storage Subsystems

13. In a dual-redundant array controller configuration and if the ECB was replaced for
both cache modules, connect the PC or terminal to the other array controller’s
maintenance port. The array controller to which you’re now connected is “this
controller.”
14. Repeat steps 9 through 12.
15. Remove the old ECB SBB.

5.6

Shutting Down the Subsystem
Various ways exist for the subsystem to shut down. It can shut down automatically as a
result of a power failure or component problem, in response to the EMU communicating
with the array controller, or when you manually shut down the subsystem.
The EMU in any enclosure can initiate a shutdown to protect the components from an
overtemperature condition. The conditions that cause the EMU to initiate this action
include one or more of the following:
•

Any two temperature sensors register a temperature of 50ºC (122ºF)

•

Removing one or more blowers for approximately 8 minutes

•

No blowers have been operational for approximately 8 minutes

•

Fewer than four operational power supplies

5.6.1 Automatic Shutdown Using Standby Power Mode
When the subsystem operates in the standby power mode, the dc power becomes
disconnected from the backplane. However, ac input power is still applied to the shelf
power supplies. In this mode, the EMU alarm control switch functions as the standby
power switch. To restore dc power to the backplane, press the alarm control switch on
each enclosure EMU.

5.6.2 Full Power Shutdown
A full power shutdown means removing the dc power from the backplane (standby power
mode), then removing ac power from the ac input power entry controllers in each
enclosure.
When you are ready to turn on the subsystem, turn on the expansion enclosures first, then
turn on the master enclosure.

5–10

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

5.6.2.1 Shutting Down the Subsystem for a Cold Swap
Use the following steps to shut down the subsystem:
1.

Connect a PC or terminal to the maintenance port of one of the array controllers in
your subsystem, if it is not already connected.

From a host console, stop all host activity and dismount the logical units in the
subsystem.

Shut down the array controllers. In single-controller configurations, you only need
to shut down “this controller.” In dual-redundant array controller configurations,
shut down the “other controller” first, then shut down “this controller” with the
following commands:
SHUTDOWN OTHER_CONTROLLER
SHUTDOWN THIS_CONTROLLER
When the array controllers shut down, their reset buttons and their first three LEDs
are lit continuously. This may take several minutes, depending on the amount of
data that needs to be flushed from the cache modules.

Turn OFF the ac input power entry controllers on the master enclosure.

Turn OFF the ac input power entry controllers on the expansion enclosures.
CAUTION
If you are shutting down the array controller for longer than
one day, perform the steps in “Disabling the External Cache
Battery,” in section 5.6.2.3. This process prevents the writeback cache batteries from discharging.

5.6.2.2 Turning on the Subsystem
Use the following steps to turn on the subsystem:
CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master enclosure.

On the expansion enclosures, turn on all ac input power entry controllers.

On the master enclosure, turn on all ac input power entry controllers.

EK–SMCPR–UG. A01

5–11

RA8000 and ESA12000 Storage Subsystems

5.6.2.3 Disabling the External Cache Batteries
Figure 5–3 External Cache Batteries

ECB 1

ECB 2

Power
connector
Status
LED

Battery
disable
switch
CXO6164A

NOTE
The ECB SBB may contain one or two batteries, depending
on the configuration.

5–12

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

Disable the ECB by pressing and holding each switch for approximately 5 seconds. The
switch is the small button labeled SHUT OFF next to the status LEDs. The ECB’s status
LED will flash once and then shut off.

5.7

Disk Drive SBB Replacement
Three methods are available for replacing disk drive SBBs: hot swap, warm swap, or cold
swap. However, before replacing a device, read all cautions, handling rules, and
replacement procedures, as well as determining the replacement method based on the
capabilities of the array controller.
Figure 5–4 Location of the Disk Drive SBB

SHR-1165

EK–SMCPR–UG. A01

5–13

RA8000 and ESA12000 Storage Subsystems

5.7.1

SBB Handling Procedures

Table 5–1 SBB Handling Rules
Do

Do NOT

Set an SBB on its side.

Set an SBB on its edge.

CXO6549A

CXO6550A

Set SBBs side by side.

Stack SBBs.

CXO6551A

CXO6552A

Set an SBB down gently.

Drop an SBB.

CXO6553A

CXO6554A

Push an SBB into the shelf gently,
but firmly.

CXO6555A

5–14

Force the SBB into the shelf.

CXO6556A

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

5.7.1.1 Hot Swap
When performing a hot swap, power and data are present on the disk drive SBB
backplane connector.
CAUTION
Although the HSG80 and HSZ80 array controllers support
hot swap, other controllers do not. Refer to the array
controller documentation to verify which array-controllersupported swap method to use.
If you are not positive that your controller supports hot
swap, Compaq recommends using warm swap to protect
data integrity.

Use hot swap to remove and replace disk drive SBBs from a system that is online and
active.
5.7.1.2 Warm Swap
When performing a warm swap, power is present on the disk drive SBB backplane
connector and no data exists on the bus. Before performing a warm swap, quiesce the bus
at the array controller and observe the green activity status LED on the disk drive SBB to
ensure it is not flashing.
CAUTION
Perform a warm swap only when the green device activity
LED is OFF.

5.7.1.3 Cold Swap
When performing a cold swap, neither power nor data is present on the disk drive SBB
plug connector. This method requires you turn OFF the enclosure power in all the
UltraSCSI RAID subsystem enclosures.

EK–SMCPR–UG. A01

5–15

RA8000 and ESA12000 Storage Subsystems

5.7.2 Disk Drive SBB Removal
Use the following steps to remove a disk drive SBB:
1.

To perform a hot swap, go to step 4.

To perform a warm swap, quiesce the SCSI bus at the array controller, then go to step
4.

To perform a cold swap, shut down the subsystem as described in section 5.6.2.1,
“Shutting Down the Subsystem for a Cold Swap.”
NOTE
For steps 4 and 5, you can use the extractor tool for
removing disk drives. Simply attach it to the drive and pull it
out.

Press the disk drive SBB mounting tabs together to release the SBB.

Use both hands and pull the disk drive SBB out of the shelf.

Place the disk drive SBB into an electrostatic bag.

5.7.3 Single Disk Drive SBB Installation
Use the following steps to install a disk drive SBB:
1.

Verify that the disk drive SBB is the correct model, and fill in the bezel label
information for this disk drive.

Insert the disk drive SBB into the guide slot and push it in until the mounting tabs
engage the shelf, fully seating the disk drive SBB.

After installing the disk drive SBB during a hot swap, go to step 6.

If performing a warm swap, press the EMU alarm control switch on the master
enclosure to restart the subsystem then go to step 6.
CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master.

5–16

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

If performing a cold swap:
a)

Plug in the subsystem’s power cord, if it is not already plugged in.

b) On all expansion enclosures, turn on all ac input power entry controllers.
c)
6.

On the master enclosure, turn on all ac input power entry controllers.
Verify that the amber device fault LED is OFF.
NOTE
When the SCSI bus is active and the disk drive SBB has
power, the green device activity LED is ON, FLASHING, or
OFF. The amber device fault LED is OFF.

5.7.4 Multiple Disk Drive SBB Installation in an UltraSCSI
Enclosure
Use the following steps to install multiple disk drive SBBs:
1.

Verify that the disk drive SBB is the correct model, and fill in the bezel label
information for each disk drive SBB.

Install all the disk drive SBBs, starting in the lower left corner in shelf 1 (devices 1–
6) and advancing to the right.

EK–SMCPR–UG. A01

5–17

RA8000 and ESA12000 Storage Subsystems

Figure 5–5 Placement of Multiple Disk Drive SBBs
Power
bus A

Power
bus B

4A 19 20 21 22 23 24 4B

Shelf 4

3A 13 14 15 16 17 18 3B

Shelf 3

10 11 12 2B

Shelf 2

Shelf 1

PVA
EMU
Controller A
Controller B
Cache A
Cache B

CXO5811A

Starting from the left, install all the disk drive SBBs in shelf 2 (devices
7–12).

Starting from the left, install all the disk drive SBBs in shelf 3 (devices
13–18).

Starting from the left, install all the disk drive SBBs in shelf 4 (devices
19–24).
CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master enclosure.

5–18

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

Start the subsystem:
a)

Plug in the subsystem’s power cord, if it is not already plugged in.

b) On all expansion enclosures, turn on all ac input power entry controllers.
c)
7.

On the master enclosure, turn all ac input power entry controllers.
Verify that the amber device fault LED is OFF.
NOTE
When the SCSI bus is active and the disk drive SBB has
power, the green device activity LED is ON, FLASHING, or
OFF. The amber device fault LED is OFF.

5.8

Power Supply SBB Replacement
Two methods are available for replacing power supply SBBs: hot swap and cold swap.
However, before replacing a power supply, read all cautions, handling rules, and
replacement procedures, as well as determining the replacement method based on the
capabilities of the array controller.
Figure 5–6 Location of the Power Supply SBB

SHR-1166

EK–SMCPR–UG. A01

5–19

RA8000 and ESA12000 Storage Subsystems

5.8.1 Handling Instructions
Read all handling rules in Table 5–1, section 5.7 “SBB Handling Procedures.”

5.8.2 Power Supply SBB Removal
Use the following steps to remove a power supply SBB:
1.

To perform a hot swap, go to step 3.

To perform a cold swap, shut down the subsystem as described in section 5.6.2.1,
“Shutting Down the Subsystem for a Cold Swap.”
NOTE
For steps 4 and 5, you can use the extractor tool for
removing a power supply SBB. Simply attach it to the drive
and pull it out.

Disconnect the power cord from the front of the power supply SBB.

Press the power supply SBB mounting tabs together to release the SBB.

Use both hands and pull the SBB out of the shelf.

Place the SBB into an electrostatic bag.

On a flat surface, lay the power supply on its side.

5.8.3 Power Supply SBB Installation
Use the following steps to install a power supply SBB:
1.

Check the bezel label to verify that the power supply being installed is a
180-W power supply.

Insert the power supply into the guide slots and push it in until the bezel mounting
tabs engage the shelf, fully seating the power supply.

Connect the power cord to the front of the power supply.

If performing a hot swap, go to step 6.
CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master enclosure.

5–20

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

If performing a cold swap, restart the subsystem:
a)

Plug in the subsystem’s power cord, if it is not already plugged in.

b) On all expansion enclosures, turn on all ac input power entry controllers.
c)

5.9

On the master enclosure, turn on all ac input power entry controllers.

Verify the array controller places the subsystem into an operational state.

Verify that both power supply status LEDs are ON.

Enclosure Blowers
When a blower malfunctions, the remaining blowers operate at high-speed to increase air
flow through the components. Enough air circulates in order to permit continued
operation without disrupting or losing data. However, Compaq recommends replacing a
defective blower immediately.
The EMU reports an error condition when a blower malfunctions, and the error condition
may be seen on the EMU LEDs.

5.9.1 Enclosure Blower Removal
CAUTION
Operating an enclosure with a blower removed significantly
changes the air flow pattern and reduces air flow through
the components. If a blower is removed and not replaced
within approximately 8 minutes, the array controllers will
shut down and the EMU will turn OFF the dc power
distribution.

Use the following steps to remove an enclosure blower:
1.

Use both hands to firmly press the upper and lower blower mounting tabs together to
release the blower.

Pull the defective blower straight out.

Place the blower into an electrostatic bag.

EK–SMCPR–UG. A01

5–21

RA8000 and ESA12000 Storage Subsystems

5.9.2 Enclosure Blower Installation
Use the following steps to install an enclosure blower:
1.

Orient the replacement blower to align its connector and guide pin with the backplane
blower connector, as shown in Figure 5–7.

Figure 5–7 Location of the Blowers

Connector
Guide

Upper
mounting
tab

Lower
mounting
tab (not shown)

CXO5753A

5–22

Push the blower straight in, until the upper and lower mounting tabs snap into place.

If dc power is applied to the enclosure, verify the blower starts operating.

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

5.10 AC Input Power Entry Controller
The ac input power entry controller provides all ac power distribution to the shelf power
supplies.
WARNING
Only qualified service personnel can replace an ac input
power entry controller.
To prevent the possibility of injury or death as a result of
electrical shock:
• Always disconnect the ac power cord before removing an
ac input power entry controller.
• Never touch the backplane connector or circuit board.
• Always install the ac input power entry controller before
connecting the ac power cord.

Figure 5–8 Location of the AC Input Power Entry Controller

Retaining
screw (2X)

AC input box

1
0

On/off switch
1
0

Power cord

CXO5186C

EK–SMCPR–UG. A01

5–23

RA8000 and ESA12000 Storage Subsystems

5.10.1 AC Input Power Entry Controller Removal
Use the following steps to remove an ac input power entry controller:
1.

For redundant and optimum (n+ 4) power configurations, verify that all eight power
supplies are operational and then go to step 3.
a)

Verify that four of the power supplies are good.

b) Verify that the LEDs on the other 4 power supplies are not lit.
2.

For a standard (n+ 1) power configuration, shut down the subsystem as
described in section 5.6.2.1, “Shutting Down the Subsystem for a Cold Swap.”

Make sure the ac input power entry controller being replaced is turned OFF.

Disconnect the ac power cord from the ac input box.

Loosen the two retaining screws and remove the ac input power entry controller.

Place the ac input power entry controller into an electrostatic bag.

5.10.2 AC Input Power Entry Controller Installation
Use the following steps to install an ac input power entry controller:

5–24

On the ac input power entry controller being installed, turn OFF the switch.

Align the ac input power entry controller with either slot A or slot B in the lower left
or lower right corner of the RAID enclosure, respectively.

Push in on the ac input power entry controller to fully seat it.

Tighten the two retaining screws.

Connect the ac power cord from the ac power source to the ac input power entry
controller.

If necessary, repeat steps 1 through 6 to install a second ac input power entry
controller.

Start the subsystem as follows:
a)

Plug in the subsystem’s power cord if it is not already plugged in.

On all expansion enclosures, turn on all ac input power entry controllers.

On the master enclosure, turn on all ac input power entry controllers.

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

5.11 EMU
The EMU can be removed using either the removal and installation procedures in this
section or the procedures in the HSG80 Array Controller ACS Version 8.x Maintenance
and Service Guide or the HSZ80 Array Controller ACS Version 8.x Maintenance and
Service Guide. Figure 5–9 shows the location of the EMU.
Figure 5–9 Location of the EMU

EMU
SHR-1168

5.11.1 EMU Removal
Use the following steps to remove an EMU:
1.

Shut down the subsystem as described in section 5.6.2.1, “Shutting Down the
Subsystem for a Cold Swap.”

Remove the EMU-to-EMU communication bus connections.

Pull the EMU extractor latches outward and remove the EMU.

5.11.2 EMU Installation
Use the following steps to install an EMU:
1.

Align the EMU in the left-hand slot and insert it.

Pull the EMU extractor latches outward. Push the EMU into the slot until the
extractor latches engage the enclosure, then push the extractor latches inward to seat
and secure the EMU.

If expansion enclosures exist, use a BN26M series cable to create the
EMU-EMU communication bus connections as shown in Figure 5–10.

EK–SMCPR–UG. A01

5–25

RA8000 and ESA12000 Storage Subsystems

Figure 5–10 EMU Communication

CXO5820A

CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master enclosure.

If performing a cold or warm swap, restart the subsystem:
a)

Plug in the subsystem’s power cord, if it is not already plugged in.

b) On all expansion enclosures, turn on all ac input power entry controllers.
c)
5.

On the master enclosure, turn on all ac input power entry controllers.
After the array controller is operational, verify the subsystem is functioning properly.

5.12 PVA Module
The PVA can be removed using either the removal and installation procedures in this
section or the FRUTIL commands in the HSG80 Array Controller ACS Version 8.x
Maintenance and Service Guide or the HSZ80 Array Controller ACS Version 8.x
Maintenance and Service Guide. Figure 5–11 shows the location of the PVA module.

5–26

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

Figure 5–11 Location of the PVA

PVA

SHR-1170

5.12.1 PVA Removal
NOTE
To perform a hot swap using FRUTIL commands, you can
replace the PVA according to the directions in the HSG80
Array Controller ACS Version 8.x Maintenance and Service
Guide or the HSZ80 Array Controller ACS Version 8.x
Maintenance and Service Guide.

Use the following steps to remove a PVA (cold swap):
1.

To perform a cold swap, shut down the subsystem as described in section 5.6.2.1,
“Shutting Down the Subsystem for a Cold Swap.”

Note the enclosure address setting (0, 2, or 3) on the PVA SCSI ID switch.

Pull both extractor latches outward and remove the PVA.

EK–SMCPR–UG. A01

5–27

RA8000 and ESA12000 Storage Subsystems

Use the following steps to remove a PVA (warm swap):
1.

Quiesce the SCSI bus at the controller.

Note the enclosure address setting (0, 2, or 3) on the PVA SCSI ID switch.

Pull both extractor latches outward and remove the PVA.

5.12.2 PVA Installation
Use the following steps to install a PVA:
1.

Align the PVA with the right-hand slot and insert it.

Pull the PVA extractor latches outward. Push the PVA into the slot until the extractor
latches engage the enclosure, then push the extractor latches inward to seat and
secure the PVA.

Ensure the PVA SCSI ID switch is set to the valid number for the enclosure.

•

Master enclosure—0

•

First expansion enclosure—2

•

Second expansion enclosure—3

If performing a hot swap, go to step 7.

If performing a warm swap, press the EMU alarm control switch on the master
enclosure to restart the subsystem and go to step 7.
CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master enclosure.

If performing a cold swap, restart the subsystem as follows:
a)

Plug in the subsystem’s power cord, if it is not already plugged in.

b) On all expansion enclosures, turn on all ac input power entry controllers.
c)
7.

5–28

On the master enclosure, turn on all ac input power entry controllers.

After the array controller is operational, verify that the subsystem is functioning
properly.

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

5.13 I/O Module
I/O modules are also referred to as device ports. Figure 5–12 shows the location of the I/O
modules.
Figure 5–12 Location of the I/O Modules

I/O Modules

SHR-1148

EK–SMCPR–UG. A01

5–29

RA8000 and ESA12000 Storage Subsystems

5.13.1 I/O Module Removal
CAUTION
To prevent interrupting a data transfer or losing data, shut
down the subsystem before removing an I/O module.

Use the following steps to remove an I/O module:
1.

Shut down the subsystem as described in section 5.6.2.1, “Shutting Down the
Subsystem for a Cold Swap.”

Use a screwdriver to loosen two spring-loaded mounting screws on the I/O module.

Grasp the I/O module by the cable support bracket and pull it straight out until it is
removed from the enclosure shroud.

Cut the wire tie securing the left cable.

Loosen the thumb screws and remove the left cable.

Label the left cable connector.

If a right cable is attached, repeat steps 4 through 6.

Place the I/O module into an electrostatic bag.

5.13.2 I/O Module Installation
Use the following steps to install an I/O module:
CAUTION
Jumpers are factory-installed—do not modify jumper
settings.
To prevent from damaging the screws, do not overtighten
the VHDCI connectors when reconnecting the cable to the
I/O module.

5–30

Align the cable with the I/O module connector.

Gently insert the cable connector into the module connector.

Tighten both cable connector thumb screws to fully seat the connector.

Install a wire tie through the holes on the cable support bracket and around the cable.

Tighten the wire tie.

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

If attaching a cable to the right I/O module connector, repeat steps 1 through 5.

Align the I/O module with the backplane connector in the enclosure shroud.

Gently insert the module and fully seat it.

Use a screwdriver to tighten the spring-loaded mounting screws. Do not overtighten –
it may damage the screws.
CAUTION
To allow the array controller to properly recognize
addresses, ensure that you turn on the expansion
enclosures before turning on the master enclosure.

10. Turn on the subsystem:
a)

Plug in the subsystem’s power cord, if it is not already plugged in.

b) On all expansion enclosures, turn on all ac input power entry controllers.
c)

On the master enclosure, turn on all ac input power entry controllers.

EK–SMCPR–UG. A01

5–31

RA8000 and ESA12000 Storage Subsystems

5.14 FRU Parts List
The Field Replaceable Units in the storage cabinet is shown in the exploded view of
Figure 5-13. Refer to Figure 5-13 to identify the FRU, and then to Table 5-2 to obtain the
description of the FRU and its corresponding part number.
Table 5–2 Subsystem Field Replaceable Units
Item

Description

COMPAQ
Part Number

DIGITAL
Part Number

HSG80 Array Controller
HSZ80 Array Controller

400285-001
Not yet available

70-33259-S1
70-33252-S1

Environmental Monitor Unit (EMU)

400286-001

FC-BA35X-EB

AC Power Entry Controller

400287-001

FC-BA35X-HE

Power Supply SBB

400288-001

FC-BA35X-HH

External Cache Backup (ECB)
Dual
Single

400291-001
400292-001

FC-HS35X-BD
FC-HS35X-BC

Dual-Speed Blower, Blue
Dual-Speed Blower, Gray

400293-001
Not yet available

FC-BA35X-MK
FC-BA35X-ML

Single-Ended I/O Module, Blue
Single-Ended I/O Module, Gray

400294-001
401911-001

FC-BA35X-MN
70-32856-S2

Power Verification and Addressing
(PVA)

400299-001

FC-BA35X-EC

Cache Module

400295-001

70-33256-S1

DIMM, 32 MB*

400296-001
400297-001

70-DIMS1-01
70DIMS1-02

Power Distribution Unit (PDU)**
60 Hz
50 Hz

401950-001
401951-001

FC-SW41U-XA
FC-SW41U-XB

* 64 MB, 128 MB, 256 MB, or 512 MB may be mounted in the cache module.
** The Power Distribution Unit (PDU) is used in the ESA12000 only.

5–32

EK–SMCPR–UG. A01

Chapter 5. Replacing Components

Figure 5–13 Subsystem Field Replaceable Parts (RA8000 Pedestal Shown)

Shr-1169-98A

Item number 11, the PDU, is not shown.

EK–SMCPR–UG. A01

5–33