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EK-HSZ10-IN-B01

May 1993

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Document:	HSZ10-AA Controller Site Prep Guide
Order Number:	EK-HSZ10-IN
Revision:	B01
Pages:	20
Original Filename:

OCR Text

HSZ10-AA Controller
Site Preparation Guide
Order Number: EK–HSZ10–IN–B01

Revision/Update Information:

Digital Equipment Corporation
Maynard, Massachusetts

This new document supersedes the
HSZ10-AA Controller Site Preparation
Guide, Version 1.0.

May 1993
First Printing, November 1992
The information is this document is subject to change without notice and should not be construed
as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no
responsibility for any errors that may appear in this document.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (c)(1)(ii) of DFARS 252.227-7013, or in FAR 52.227-19
or FAR 52.227-14, Alt. III, as applicable.
© Digital Equipment Corporation 1993.
All Rights Reserved.
Printed in the U.S.A.
The equipment described in this manual 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
computing device pursuant to Part 15 of FCC Rules, which are designed to provide reasonable
protection against such radio frequency interference when operated in a commercial environment.
Operation of this equipment in a residential area may cause interference, in which case the user
at his own expense may be required to take measures to correct the interference.
The postpaid READER’S COMMENTS form on the last page of this document requests the
user’s critical evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation:
BA350, DEC, DECnet, DECnet–DOS, DEC RAID, DECserver, DECstation, DECwindows,
OpenVMS, StorageWorks, VAX, VAXcluster, VAX DOCUMENT, VAXstation, VMS, VT, and the
DIGITAL logo.
The following are third-party trademarks:
ASPI is a registered trademark of Adaptec, Inc.
DPT, SmartCache, and SmartROM are registered trademarks of Distributed Processing
Technology.
Intel is a registered trademark of Intel Corporation.
MS–DOS and Microsoft are registered trademarks of Microsoft Corporation.
Novell and NetWare are registered trademarks of Novell, Inc.
RAID Manager is a trademark of NCR Corporation.
SCO is a registered trademark of The Santa Cruz Operation, Inc.
UNIX is a registered trademark of AT&T.
Windows is a trademark of Microsoft Corporation.
X Window System is a trademark of the Massachusetts Institute of Technology.
All other trademarks and registered trademarks are the property of their respective holders.

This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Introduction
1.1
1.2
1.3

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the SCSI ID on the Controller for the Array Channel . . .
Setting the SCSI ID on the Controller for the Host Channel . . . .

1–1
1–4
1–4

2 How to Replace an HSZ10-AA Controller
3 How to Add an Additional Controller
Figures
1–1
1–2
1–3
1–4
2–1
2–2
2–3
2–4
2–5

Diagram of the BA350-EA Shelf . . . . . . . . . . . . . . . . . . . . . .
Physical Layout of the HSZ10-AA Controller . . . . . . . . . . . . .
SW1—SCSI ID Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI ID Setting Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . .
HSZ10-AA in a BA350-EA Shelf . . . . . . . . . . . . . . . . . . . . . .
Removing the HSZ10-AA Controller . . . . . . . . . . . . . . . . . . .
LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED Indicators for the Fully Functional State . . . . . . . . . . . .

1–2
1–3
1–4
1–5
2–2
2–3
2–4
2–5
2–6

iii

Preface
Purpose
This guide describes the installation or replacement of the HSZ10-AA controller
and setting the SCSI ID switches on the controller.

Intended Audience
This guide is intended for use by customers, system administrators, and Digital
Customer Service Engineers responsible for installing and maintaining the
HSZ10-AA controller.

Structure
This guide is organized as follows:
Chapter 1, Introduction, describes the HSZ10-AA controller, setting the
SCSI ID on the controller for the array channel, setting the SCSI ID on the
controller for the host channel.
Chapter 2, How to Replace an HSZ10-AA Controller, describes how to
remove and replace an HSZ10-AA controller.
Chapter 3, How to Add an Additional Controller, describes how to add an
additional HSZ10-AA controller.

Related Documents
The following is a list of documents that contain information related to this
product:
Document Title

Order Number

DEC RAID Subsystem User’s Guide

EK–SZ200–UG

DEC RAID Utilities User’s Guide

EK–DECRA–UG

DEC RAID OpenVMS VAX Utility User’s Guide

AA–PYZLA–TE

DEC RAID OpenVMS VAX Utility Release Notes and Installation
Guide

AA–PYZUA–TE

StorageWorks Shelf Building Block Subsystem Configuration
Guide

EK–BA350–CG

BA350–EA Modular Storage Shelf Subsystem User’s Guide

EK–350EA–UG

BA350–SA Modular Storage Shelf User’s Guide

EK–350SA–UG

BA35X Vertical Mounting Kit User’s Guide

EK–BA350SV–UG

Documentation Conventions
The following is a list of the conventions used in this manual.

Convention

Description

boldface type

Indicates the first instance of terms being defined in text.

italic type

Indicates emphasis and complete manual titles.

1
Introduction
The HSZ10-AA controller (disk array controller board) is factory-installed
and shipped in the BA350-EA shelf. The SCSI ID switches located on the
HSZ10-AA controller are preset to the default setting shown in Section 1.3.
This guide describes how to do the following:
•

Remove the HSZ10-AA controller.

•

Set the SCSI ID switches.

•

Replace the controller in the BA350-EA shelf.

•

Add a controller.

This chapter contains the following information:
•

Product description

•

SCSI ID for the drive channels

•

SCSI ID for the host channel

1.1 Product Description
The HSZ10-AA controller is an intelligent SCSI disk array controller that
supports the following characteristics:
•

RAID levels 0, 1, 3, and 5

•

Host SCSI support: fast (10 Mbytes per second), wide (16 bits), differential
SCSI-2

•

Drive support: 5 Mbytes per second SCSI-2 (5 channels)

•

Dimensions (form factor): 7.75 inches by 12.5 inches

Introduction 1–1

Introduction
1.1 Product Description
The physical standard dimensions (form factor) of the controller are designed
to fit in a BA350-EA shelf shown in Figure 1–1 in either controller slot. If
there is only one controller, it should go into the top slot (or left slot if the unit
is mounted in a BA35X-VA kit) shown in Figure 1–1 as ‘‘Controller 1.’’
Figure 1–1 Diagram of the BA350-EA Shelf
CONTROLLER 1
POWER

CONTROLLER 2

1
T

3
T

4
T

5
T

POWER
0

LEGEND
BACKPLANE CONNECTION
T

TERMINATOR

JUMPER
SCSI CABLE
CXO-3589A-MC

The five drive SCSI buses are directly connected to the BA350-EA backplane
through connectors shown as J3, J4, and J5 as shown in Figure 1–2.

1–2 Introduction

Introduction
1.1 Product Description
Figure 1–2 Physical Layout of the HSZ10-AA Controller

J4
J7

J11
7.750
Switches
SW2 SW1

J18
J17

J10
J2

LED Display

12.500

Legend
J1
J2
J3
J4
J5
J6

68 pin host connector
68 pin host connector
2 array SCSI channels
2 array SCSI channels
1 array SCSI channel
subsystem signals
SW1
SW2

J7
J10
J11
J17
J18

drive fault signals (reserved)
RS232 port (reserved)
diagnostic port (reserved)
processor test port (reserved)
processor test port (reserved)

SCSI switches
manufacturing switches (reserved)
SHR−XR3003−GRA

Connection to the host SCSI bus is through the 68-pin P-cable SCSI
connections. Either the J1 or the J2 connector can be used. Whichever
connector is not used is available for either daisy chaining to another
HSZ10-AA controller or terminating the SCSI bus with the terminator
provided.
An LED display is used for status information for the controller. A handle
is provided for shielding as well as user convenience during removal and
insertion of the HSZ10-AA controller.
Two captive screws secure the controller into the BA350-EA shelf.

Introduction 1–3

Introduction
1.2 Setting the SCSI ID on the Controller for the Array Channel

1.2 Setting the SCSI ID on the Controller for the Array
Channel
The SCSI ID of the controller used on the drive bus is determined by the
controller slot of the BA350-EA shelf backplane. If the controller is placed in
the Controller 1 slot, then the SCSI ID is 7. If the controller is placed in the
Controller 2 slot, then the SCSI ID is 6.

1.3 Setting the SCSI ID on the Controller for the Host
Channel
The SCSI ID on the host channel is set by using SW1 as shown in Figure 1–3.
Figure 1–3 SW1—SCSI ID Settings
SW1
1 2 3 4 5 6 7 8

SW2
1 2 3 4 5 6 7 8

SCSI ID = 0
OFF
8 4 2 1

OFF
1 2 3 4 5 6 7 8

SCSI ID

Legend
Down
SHR−XR3020−GRA

By default, the switch is set to SCSI ID 0, as shown in Figure 1–3. The SCSI
ID can be set to any value between 0 and 15. To change the default SCSI ID,
you must remove the HSZ10-AA controller from the BA350-EA shelf, and then
set the SCSI ID. The procedure for removing the controller is described in
Chapter 2.
Figure 1–4 shows examples of SCSI ID 4, 6, and 12.

1–4 Introduction

Introduction
1.3 Setting the SCSI ID on the Controller for the Host Channel
Figure 1–4 SCSI ID Setting Examples
SW1
1 2 3 4 5 6 7 8

SCSI ID = 4
OFF
8 4 2 1

SCSI ID

SW1
1 2 3 4 5 6 7 8

SCSI ID = 6
OFF
8 4 2 1

SCSI ID
SW1
1 2 3 4 5 6 7 8

SCSI ID = 12
OFF
8 4 2 1

SCSI ID

Legend
Down
SHR−XR3021−GRA

Note
If the HSZ10-AA controller is to be used with 8-bit devices on the host
SCSI bus, then the SCSI IDs of the controller should be restricted to
between 0 and 7.

Introduction 1–5

2
How to Replace an HSZ10-AA Controller
Do following steps to replace an HSZ10-AA controller board.
Caution
To avoid unnecessary static damage, follow adequate antistatic
procedures when handling HSZ10-AA controllers.

If the unit is mounted as a part of a vertical mounting kit (BA35X-VA), then
the cabinet door and front bezel should be removed as shown in Figure 2–1.
The procedure is described in the BA35X-VA Verticle Mounting Kit User’s
Guide. After you open the cabinet door, press down on the plastic clips at the
base of the bezel and pull the bezel toward you.

How to Replace an HSZ10-AA Controller 2–1

How to Replace an HSZ10-AA Controller

Note that Figure 2–1 shows the removal of the front drive bezel. Remove the
front shelf bezel in the same way that you would remove the drive bezel.
Figure 2–1 Removing the Front Bezel

Front Drive Bezel
Plastic Clips

Pull Bezel Toward
You

SHR-XR3003-VIF

1. Power down the subsystem.
2. Loosen the captive slotted screws shown in Figure 2–2 on the host
connector cable and remove the cable from the HSZ10-AA controller.

2–2 How to Replace an HSZ10-AA Controller

How to Replace an HSZ10-AA Controller

Figure 2–2 HSZ10-AA in a BA350-EA Shelf

Captive Slotted
Screw
HSZ10-AA
Controller
Backplane
Captive Slotted
Screw
Guides

SHR-XR3002-VIF

3. Use a screwdriver to loosen the large captive screws at the top and bottom
of the panel on the BA350-EA shelf to free the HSZ10-AA controller board.
You do not have to remove the terminator by unscrewing its thumb screws.
That is optional.
4. Carefully remove the new controller board from the antistatic bag.
Warning
The surfaces of the board are rough and the edges are sharp. Place the
board down gently.

5. The existing controller board was loosened in Step 2. Remove the
HSZ10-AA controller board by pulling the handles straight toward you and
sliding the board along the guide inside the cabinet shown in Figure 2–3.

How to Replace an HSZ10-AA Controller 2–3

How to Replace an HSZ10-AA Controller

Figure 2–3 Removing the HSZ10-AA Controller

Handle
HSZ10-AA
Controller

Terminator

Handle

SHR-XR3004-VIF

Note that the controller board fits tightly within the shelf. When the board
is free of the cabinet, make note of the SCSI ID of the original controller
board.
You can put the original board in the empty antistatic bag that came with
the new controller board. If you are replacing the HSZ10-AA controller
board because of a defect, place the board in the shipping box and send it
to your Digital Customer Service Center for repair or credit.
6. Set the SCSI ID of the replacement controller board to that of the original
controller. Slide the new controller into the slot that the original controller
came out of using the guides provided. The board must be properly seated.
It should snap into place and sit flush within the cabinet before you start
to secure the controller by tightening the captive screws.
7. Re-attach the host SCSI cable and terminator as necessary.
8. Power on the subsystem.

2–4 How to Replace an HSZ10-AA Controller

How to Replace an HSZ10-AA Controller

9. If the power is on, then the controller shows the green power light and the
‘‘Heartbeat’’ LED next to it and at the other end of the LED indicator is an
LED value of 5. See Figure 2–4.
Figure 2–4 LED Indicators

Green Power
Light
Flashing
Fault

MSB

LSB

Heartbeat LED
Legend
On
MSB
LSB

Most significant bit
Least significant bit

SHR−XR3022−GRA

How to Replace an HSZ10-AA Controller 2–5

How to Replace an HSZ10-AA Controller

Figure 2–5 shows the new LED indicators.
Figure 2–5 LED Indicators for the Fully Functional State

Green Power
Light

Heartbeat LED

Legend
On
SHR−XR3023−GRA

If the LED does not appear as shown in Figure 2–5, then refer to Chapter
6, Operations and Chapter 8, Error Handling/Troubleshooting in the DEC
RAID Subsystem User’s Guide.
10. If the unit is contained in a vertical mounting kit, then replace the bezel.
Refer to the BA35X-VA Verticle Mounting Kit User’s Guide for details.

2–6 How to Replace an HSZ10-AA Controller

3
How to Add an Additional Controller
Follow these steps to add a controller:
1. If two controllers are to be daisy chained together on the same SCSI bus,
then set the SCSI ID of the new controller so that it does not conflict with
the existing controller.
2. Slide the controller into the empty slot shown as ‘‘Controller 2’’ in
Figure 1–1 and secure it in place using the thumb screws.
3. Connect to the existing controller and/or to the host using the appropriate
cable provided.
Note
An additional controller will be in a passive state.
The additional controller can only be taken out of this state by using a
host adapter/operating system environment that can use a redundant
controller configuration. Such a configuration is not yet supported.

How to Add an Additional Controller 3–1