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EK-SW800-IG-D01

June 1994

120 pages

Original

1.4MB

Document:	StorageWorks Solutions SW800-Series Data Center Cabinet Inst
Order Number:	EK-SW800-IG
Revision:	D01
Pages:	120
Original Filename:

OCR Text

StorageWorks™ Solutions
SW800-Series Data Center Cabinet
Installation and User’s Guide
Order Number: EK–SW800–IG. D01
This manual describes the concepts and procedures necessary to install,
configure, and use StorageWorks SW800-series data center cabinets.
Mechanical cabinet configuration and power configuration are covered
in this manual. The configuration and connection of SCSI–2 buses is
covered in referenced StorageWorks documentation.

Digital Equipment Corporation
Maynard, Massachusetts

June 1994
While Digital believes the information included in this publication is correct as of the date of
publication, it is subject to change without notice.
Digital Equipment Corporation 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.
© Digital Equipment Corporation, 1994.
All Rights Reserved.
Printed in the United States of America.
NOTE: 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 persuant to Part
15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation.
Any changes or modifications made to this equipment may void the user’s authority to operate the
equipment.
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.
CI, Digital, HSJ40, HSZ40, StorageWorks, and the DIGITAL logo are trademarks of Digital
Equipment Corporation.

This document was prepared using VAX DOCUMENT Version 2.1.

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

Manufacturer’s Declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xiii

1 How to Use This Manual
1.1
1.2

Cabinet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locating the Information You Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–1

2 Introduction
2.1
2.2
2.3
2.3.1
2.3.2
2.3.3
2.4

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Shelf Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1
2–4
2–7
2–7
2–8
2–9
2–10

3 Site Preparation
3.1
3.2

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–1
3–2

4 Unpacking and Installation
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8

Unpacking the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Cabinet from the Pallet . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring the Cabinet Rack Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Placing the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leveling the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Skirt Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspecting the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powering the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1
4–4
4–7
4–7
4–8
4–8
4–9
4–10

5 Configuring SW800 Storage-Only Cabinets
5.1
5.1.1
5.1.2
5.2
5.3
5.4
5.4.1

Cabinet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shelf Locations Without Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ8x7-Series Tape Drive/Shelf Locations . . . . . . . . . . . . . . . . . . . . . . .
Filler Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Configuration and Power Cable Routing . . . . . . . . . . . . . . . . . . . .
Signal Cabling and Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI–2 Cable Selection and Connection . . . . . . . . . . . . . . . . . . . . . . .

5–1
5–2
5–3
5–4
5–5
5–6
5–6

iii

5.4.2
5.4.3
5.5

Host-to-Shelf SCSI–2 Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . .
Intershelf SCSI–2 Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Cable Routing Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–6
5–7
5–7

6 Configuring SW800 Controller/Storage Cabinets
6.1
6.2
6.2.1
6.2.2
6.3
6.4
6.5
6.5.1
6.5.2
6.5.3
6.5.4
6.6

HSJ40 and HSZ40 Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shelf Locations Without Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ8x7-Series Tape Drive/Shelf Locations . . . . . . . . . . . . . . . . . . . . . . .
Filler Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Configuration and Power Cable Routing . . . . . . . . . . . . . . . . . . . .
Signal Cabling and Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Host-to-Controller Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI–2 Cable Selection and Connection . . . . . . . . . . . . . . . . . . . . . . .
Controller-to-Shelf SCSI–2 Cable Routing . . . . . . . . . . . . . . . . . . . . . .
Intershelf Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Cable Routing Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–1
6–1
6–2
6–2
6–2
6–3
6–6
6–6
6–7
6–7
6–8
6–8

7 Installing StorageWorks Shelves
7.1
7.2
7.2.1
7.2.2
7.2.3
7.3
7.4
7.5
7.5.1
7.6
7.6.1
7.6.2
7.7
7.7.1
7.7.2
7.7.3
7.7.4
7.7.5
7.8
7.9

General Shelf Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shelf Bracket Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screw-Mounted Shelf Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tab-Mounted Shelf Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Cabinet Brackets on the Vertical Slots . . . . . . . . . . . . . . . .
Shelf Bracket Kit Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Preparation and Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing the Cabinet Rack Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Exterior Cabinet Panels . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Shelf Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Horizontal Shelf Brackets with Screw Mounts . . . . . . . . . . .
Installing Horizontal Shelves with Tab Mounts . . . . . . . . . . . . . . . . . .
Vertical Shelf Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Cabinet Bracket Types . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Determining Cabinet Configurations . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Vertical Shelves with Screw Mounts . . . . . . . . . . . . . . . . . .
Installing Vertical Shelves With Tab Mounts . . . . . . . . . . . . . . . . . . . .
Filler Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Exterior Cabinet Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–1
7–1
7–2
7–2
7–2
7–2
7–4
7–4
7–4
7–6
7–6
7–10
7–14
7–14
7–15
7–15
7–16
7–20
7–23
7–24

8 Installing TZ8x7-Series Tape Drives
8.1
8.2
8.3
8.3.1
8.3.2
8.3.3
8.4
8.5
8.6
8.7

General Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing the Cabinet Rack Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chassis Rail Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chassis Rail Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . .
Left Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . . .
Mounting the TZ8x7-Series Tape Drive Enclosure . . . . . . . . . . . . . . . . . . .
Supplying AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCSI–2 Signal Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Cabinet Door Tape Bezel Kit . . . . . . . . . . . . . . . . . . . . . . . .

8–1
8–2
8–4
8–4
8–5
8–7
8–10
8–11
8–12
8–12

8.8

Reinstalling Exterior Cabinet Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–13

9 Power Configuration
9.1
9.2
9.2.1
9.2.2
9.3

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single CDU Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Shelf Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–1
9–1
9–2
9–2
9–4

StorageWorks Glossary
Index
Figures
2–1
2–2
2–3
2–4
2–5
2–6
3–1
3–2
4–1
4–2
4–3
4–4
4–5
4–6
5–1
5–2
5–3
5–4
6–1
6–2
6–3
6–4
7–1
7–2
7–3
7–4
7–5

SW800-Series Data Center Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ8x7-Series Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Shelf Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .
CDU Primary Power Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping Container Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping Pallet Ramp Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping Bolts and Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Cabinet from the Pallet . . . . . . . . . . . . . . . . . . . . . . . . .
Leveler Foot Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Skirt Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SW800 Storage-Only Cabinet Shelf Locations Without Tape Drives . .
SW800 Storage-Only Cabinet Shelf Locations With Two Tape Drives
.......................................................
SW800 Storage-Only Cabinet Shelf Locations With Four Tape Drives
.......................................................
SW800 Storage-Only Cabinet Cable Routing . . . . . . . . . . . . . . . . . . . .
SW800 Controller/Storage Cabinet Shelf Locations Without Tape
Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SW800 Controller/Storage Cabinet Shelf Locations With Two Tape
Drives Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SW800 Controller/Storage Cabinet Shelf Locations With Four Tape
Drives Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SW800 Controller/Storage Cabinet Cable Routing . . . . . . . . . . . . . . . .
Exterior Cabinet Panel Removal and Installation . . . . . . . . . . . . . . . .
Front Horizontal Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . .
Rear Horizontal Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . .
Front Horizontal Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . .
Rear Horizontal Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . .

2–2
2–5
2–6
2–7
2–8
2–9
3–1
3–2
4–3
4–5
4–6
4–7
4–8
4–9
5–2
5–4
5–5
5–8
6–3
6–4
6–5
6–9
7–5
7–8
7–9
7–12
7–13

7–6
7–7
7–8
7–9
7–10
7–11
8–1
8–2
8–3
8–4
8–5
8–6
8–7
8–8
9–1
9–2
9–3
9–4
9–5

A Two-Piece Horizontal Cabinet Bracket . . . . . . . . . . . . . . . . . . . . . . .
A One-Piece Horizontal Cabinet Bracket . . . . . . . . . . . . . . . . . . . . . . .
Front Vertical Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . .
Rear Vertical Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . .
Front Vertical Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . .
Rear Vertical Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . .
TZ8x7-Series Tape Drive Installation . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet Side Panel Removal and Installation . . . . . . . . . . . . . . . . . . .
Chassis Rail Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Position Chassis Rail Installation . . . . . . . . . . . . . . . . . . . . . . . .
Left Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . . .
Right Position Tape Drive Mounting . . . . . . . . . . . . . . . . . . . . . . . . . .
Left Position Tape Drive Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ8x7-Series Tape Drive Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . .
CDU Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Bracket Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CDU B Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Label Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–14
7–15
7–18
7–19
7–22
7–23
8–2
8–3
8–5
8–6
8–8
8–11
8–12
8–13
9–2
9–3
9–6
9–7
9–8

StorageWorks Related Documentation . . . . . . . . . . . . . . . . . . . . . . . .
Acoustics—Preliminary Declared Values per ISO 9296 and ISO
7779 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schallemissionswerte—Vorläufige Werteangaben nach ISO 9296 und
ISO 7779/DIN EN27779 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Information and Procedure Locations . . . . . . . . . . . . . . . . . . . . . . . . .
SW800-Series Data Center Cabinet Specifications . . . . . . . . . . . . . . . .
Thermal Stabilization Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
SW800 Storage-Only Cabinet Power Cable Lengths . . . . . . . . . . . . . .
SW800 Controller/Storage Cabinet Power Cable Lengths . . . . . . . . . .
SW800 Controller/Storage Cabinet SCSI–2 Cable Lengths . . . . . . . . .
SW800 Metric Shelf Screw-Mounted Bracket Kit Parts List . . . . . . . .
SW800 Metric Shelf Tab-Mounted Bracket Kit Parts List . . . . . . . . . .
Horizontal Shelf Stop Bracket Positions . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Shelf Locking Bracket Part Numbers . . . . . . . . . . . . . . . . .
Horizontal Shelf Stop Bracket Positions . . . . . . . . . . . . . . . . . . . . . . .
Horizontal Shelf Locking Bracket Part Numbers . . . . . . . . . . . . . . . . .
Determining Cabinet Configurations . . . . . . . . . . . . . . . . . . . . . . . . . .
Vertical Shelf Stop Bracket Positions . . . . . . . . . . . . . . . . . . . . . . . . . .
Vertical Shelf Locking Bracket Part Numbers . . . . . . . . . . . . . . . . . . .
Vertical Shelf Stop Bracket Positions . . . . . . . . . . . . . . . . . . . . . . . . . .
Vertical Shelf Locking Bracket Part Numbers . . . . . . . . . . . . . . . . . . .
SW800-Series Data Center Cabinet 60 Hz Dual-Power Option Kit
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tables
1
2
3
1–1
2–1
4–1
5–1
6–1
6–2
7–1
7–2
7–3
7–4
7–5
7–6
7–7
7–8
7–9
7–10
7–11
9–1

xiv
xv
1–2
2–3
4–2
5–6
6–6
6–8
7–3
7–3
7–7
7–7
7–10
7–11
7–15
7–17
7–17
7–20
7–21
9–4

9–2

SW800-Series Data Center Cabinet 50 Hz Dual-Power Option Kit
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9–4

vii

Preface
This document presents the concepts and procedures necessary to install,
configure, and use StorageWorks™ SW800-series data center cabinets.
Mechanical cabinet configuration and power configuration is covered in this
manual. The configuration and connection of SCSI–2 signal buses is covered in
referenced StorageWorks documentation.

Intended Audience
This manual is intended for use by customers and Digital™ Services engineers
responsible for installing, configuring, and using StorageWorks SW800-series
data center cabinets.
Note
The procedures described in this guide are to be performed only by
qualified service personnel.

Structure
This manual is organized as follows:
Chapter 1

Discusses how to use this manual to configure an SW800-series cabinet
storage subsystem.

Chapter 2

Provides an overview of the SW800-series data center cabinet, a
description of its major components, and a discussion of the power
options available for it.

Chapter 3

Contains site preparation information.

Chapter 4

Describes the unpacking and installation of SW800-series data center
cabinets.

Chapter 5

Describes the configuration of SW800-series storage-only cabinets.

Chapter 6

Describes the configuration of SW800 controller/storage cabinets.

Chapter 7

Describes the mounting of StorageWorks shelves within SW800-series
data center cabinets.

Chapter 8

Describes the installation of TZ8x7-series tape drives within SW800series data center cabinets.

Chapter 9

Describes the configuration of power within SW800-series data center
cabinets.

Glossary

The Glossary defines the acronyms and specialized terms used in the
StorageWorks environment.

Related Documents
Table 1 lists the StorageWorks-related user documents organized by use, system,
or product.
Table 1 StorageWorks Related Documentation
Document Title

Order Number
StorageWorks Primary Publications

StorageWorks Solutions Configuration Guide

EK–BA350–CG

StorageWorks Solutions Shelf and SBB User’s Guide

EK–BA350–UG

StorageWorks RAID Array 110 Subsystem
DEC RAID Utilities User’s Guide

EK–DECRA–UG

HSZ10–AA Controller Site Preparation Guide

EK–HSZ10–IN

StorageWorks Expansion Storage Pedestal User’s Guide

EK–SMCPA–UG

StorageWorks RAID Array 110 Subsystem User’s Guide

EK–SM2CA–UG

StorageWorks RAID Array 110 Utility for MS–DOS User’s Guide

AA–Q0N5A–TE

StorageWorks RAID Array 110 Utility for Novell NetWare User’s Guide

AA–Q0N4A–TE

StorageWorks RAID Array 110 Utility for SCO UNIX User’s Guide

AA–Q0N6A–TE

StorageWorks Array Controller 140-Series
StorageWorks Array Controller HS Family of Array Controllers User’s Guide

EK–HSFAM–UG

StorageWorks BA350–MA Controller Shelf User’s Guide

EK–350MA–UG

DECraid+ Rackmount Storage Subsystem and HSC Intelligent I/O Servers
HSC Controller User’s Guide
HSC Controller Installation Manual

AA–PFSQA–TK
EK–HSCMN–IN
(continued on next page)

Table 1 (Cont.) StorageWorks Related Documentation
Document Title

Order Number
StorageWorks Enclosures

BA35X–VA Vertical Mounting Kit User’s Guide

EK–350SV–UG

InfoServer 1000 Installation and Owner’s Guide

EK–INFLC–OM

StorageWorks Solutions Desktop Expansion Unit User’s Guide

EK–BA353–UG

StorageWorks Solutions SW500 and SW800 Cabinet Metric Shelf Bracket Kit
Installation Guide

EK–35XRD–IG

StorageWorks Solutions HSR95-Series Cabinet Metric Shelf Bracket Kit Installation
Guide

EK–35XRD–IG

StorageWorks RETMA Shelf Rail Kit Installation Guide

EK–35XRB–IG

StorageWorks Solutions SW500-Series Cabinet Installation and User’s Guide

EK–SW500–IG

StorageWorks Solutions SW500-Series Cabinet Cable Distribution Unit Installation
Guide

EK–SW5CU–IG

StorageWorks Solutions SW800-Series Data Center Cabinet Cable Distribution Unit
Installation Guide

EK–SWCDU–IS

StorageWorks Solutions SW800-Series Data Center Cabinet Installation and User’s
Guide

EK–SW800–IG

Instructions for Installation of the Tape Bezel Kit on SF400 Series Cabinets‡

EK–SFTBK–IS

Storage Devices
EK–DWZZA–SV

SCSI Signal Converter DWZZA–AA
SCSI Signal Converter DWZZA–MA

EK–DWZZM–SV

SCSI Signal Converter DWZZA–VA

EK–DWZAA–SV

StorageWorks Building Blocks User’s Guide

EK–SBB35–UG

StorageWorks Solutions 3½-Inch Storage Device Installation Guide

EK–MC350–IG

StorageWorks Solutions 5¼-Inch Storage Device Installation Guide

EK–MC525–IG

TZ86–VA Cartridge Tape Drive Device Addresses

EK–TZ86A–UG

TZ87–VA Cartridge Tape Drive Device Addresses

EK–TZ87A–DA

Storageworks Solutions TZ8x7-Series Tape Drive SCSI Bus Configuration and
Installation Guide

EK–TZ8X7–IG

General Reference Publications
Digital Systems and Options Catalog

†

Small Computer System Interface, An Overview

EK–SCSIS–OV

Small Computer System Interface, A Developer’s Guide

EK–SCSIS–DK

† Available from your Digital account representative.
‡ Also applies to StorageWorks cabinets.

Documentation Conventions
The following conventions are used in this manual:

xii

boldface type

Boldface type indicates the first instance of terms being defined in text,
in the glossary, or both.

italic type

Italic type indicates emphasis and complete manual titles. In the
glossary, italic type also is used to indicate cross-references.

Manufacturer’s Declarations
Following are manufacturer’s declarations applicable to StorageWorks
SW800-series data center cabinets:
CAUTION
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 die Benutzer für entsprechende Gegenmaßnahmen
verantwortlich sind.

ATTENTION !
Ceci est un produit de Classe A. Dans un environment domestique, ce
produit risque de créer des interférences radiélectriques, il appartiendra
alors à l´utilisateur de prendre les mesures spécifiques appropriées.

Note
The equipment described in this manual is listed by the Underwriters
Laboratories Incorporated and bears the UL Listing mark. SW800-series
data center cabinets also are certified by the Canadian Standards
Association and TUV Product Service GmbH and bear both the CSA
certification and TUV GS marks.

xiii

Table 2 Acoustics—Preliminary Declared Values per ISO 9296 and ISO 7779
SoundPower
Level
 , B‡

SoundPressure
  , dBALevel
(Bystander Positions)

Product†

Idle

Operate

Idle

Operate

SW800 with only cabinet fans operating

6.4

55.7

SW800 with 4 BA350–MA shelves
and 18 BA350–SA shelves, each
containing 6 RZ26–VA disk drives

6.8

6.9

58.9

59.9

BA350–SA shelf containing
6 RZ26–VA disk drives

5.7

BA350–MA shelf

5.6

Per device when installed in SW800

SoundPower
Level
 , B‡

Sound Pressure
 , dBALevel
(Operator Positions)

Product†

Idle

Operate

Idle

Operate

SW800 with only cabinet fans operating

6.6

57.1

SW800 with 4 BA350–MA shelves
and 18 BA350–SA shelves, each
containing 6 RZ26–VA disk drives

6.7

7.0

57.9

60.2

BA350–SA shelf containing
6 RZ26–VA disk drives

5.8

BA350–MA shelf

5.7

Per device when installed in SW800

† Current values for specific configurations are available from Digital representatives.
‡ 1 B = 10 dBA.

Note
Table 3 is a translation of the English language specifications in Table 2
into the German language.

xiv

Table 3 Schallemissionswerte—Vorläufige Werteangaben nach ISO 9296 und
ISO 7779/DIN EN27779
Schalleistungspegel
 , B‡

Schalldruckpegel
   , dBA
(Beistehende Position)

Gerät†

Leerlauf

Betrieb

Leerlauf

Betrieb

SW800 nur mit kabinett Lüftern in Betrieb

6,4

55,7

SW800 mit 4 BA350–MA shelves und
18 BA350–SA shelves, jedes
bestückt mit 6 RZ26–VA disk drives

6,8

6,9

58,9

59,9

BA350–SA shelf mit
6 RZ26–VA disk drives

5,7

BA350–MA shelf

5,6

Pro Gerät installiert im SW800

Schalleistungspegel
 , B‡

Schalldruckpegel
  , dBA
(Bediener Position)

Gerät†

Leerlauf

Betrieb

Leerlauf

Betrieb

SW800 nur mit kabinett Lüftern in Betrieb

6,6

57,1

SW800 mit 4 BA350–MA shelves und
18 BA350–SA shelves, jedes
bestükt mit 6 RZ26–VA disk drives

6,7

7,0

57,9

60,2

BA350–SA shelf mit
6 RZ26–VA disk drives

5,8

BA350–MA shelf

5,7

Pro Gerät installiert im SW800

† Aktuelle Werte für spezielle Ausrüstungsstufen sind über die Digital Equipment Vertretungen
erhältlich.
‡ 1 B = 10 dBA.

1
How to Use This Manual
This chapter shows you how to use the information in this manual to configure
an SW800-series cabinet storage subsystem.

1.1 Cabinet Configuration
Following is the sequence of steps that you must follow to set up a storage
subsystem in an SW800-series cabinet:
1. Understanding cabinet concepts—To follow the procedures in this manual,
you should be familiar with the components and nomenclature used with the
SW800-series cabinet family.
2. Site preparation—You must ready the site for the installation of the cabinet.
3. Unpacking—You must unpack the cabinet and set it in place at the site.
4. Cabinet layout—You must determine the layout of the cabinet’s shelves, tape
units, and power cabling.
5. Component installation—You must install the cabinet’s shelves and tape units
in accordance with the layout.
6. Power cabling routing and installation—You must install and route the
cabinet’s power cabling in accordance with the layout.
7. SCSI bus design and connection—You must design and connect the cabinet’s
SCSI bus signal cabling.
8. SCSI bus cable routing—You must properly route the cabinet’s SCSI bus
signal cabling as it is installed.

1.2 Locating the Information You Need
This manual contains the information and procedures to support the cabinet
configuration process. The design and connection of SCSI signal buses, however,
is covered in referenced documentation. Table 1–1 shows each configuration step,
where you can find the information, and procedures you need to complete the
step.

How to Use This Manual 1–1

Table 1–1 Information and Procedure Locations
Configuration Step

Location of Supporting Information

Comments

Understanding
cabinet concepts

Chapter 2, Introduction

Site preparation

Chapter 3, Site Preparation

Unpacking

Chapter 4, Unpacking and Installation

Cabinet layout

Chapter 5, Configuring SW800 StorageOnly Cabinets

To lay out storage-only cabinets

Chapter 6, Configuring SW800
Controller/Storage Cabinets

To lay out cabinets containing both
controllers and storage

Component
installation
StorageWorks
shelves

Chapter 7, Installing StorageWorks
Shelves

TZ8x7 tape
drives

Chapter 8, Installing TZ8x7-Series
Tape Drives

Power cabling
routing and
installation

Chapter 5, Configuring SW800 StorageOnly Cabinets

For storage-only cabinets

Chapter 6, Configuring SW800
Controller/Storage Cabinets

For cabinets containing both controllers
and storage

SCSI bus design
and connection†

StorageWorks Solutions Family
Configuration Guide
StorageWorks Solutions Shelf and SBB
User’s Guide

For BA350–Sx storage shelves

StorageWorks Array Controller HS
Family of Array Controllers User’s
Guide
StorageWorks BA350–MA Controller
Shelf User’s Guide

For BA350–Mx controller/storage shelves

StorageWorks Solutions TZ8x7-Series
Tape Drive SCSI Bus Configuration
and Installation Guide

For TZ8x7-series tape drives

Chapter 5, Configuring SW800 StorageOnly Cabinets

Routing for storage-only cabinets

Chapter 6, Configuring SW800
Controller/Storage Cabinets

For cabinets containing both controllers
and storage

SCSI bus cable
routing

†The procedures involved in SCSI bus design and connection are specific to the components being bused together. See the
referenced documentation for detailed information on SCSI bus design and connection.

1–2 How to Use This Manual

2
Introduction
This chapter presents an overview, a description of major components, and a
discussion of power options for StorageWorks SW800-series data center cabinets.

2.1 Overview
The SW800-series data center cabinet, shown in Figure 2–1, is a member of
Digital’s StorageWorks family of modular enclosures. The 800 mm-wide cabinet
provides an attractive enclosure with rackmount space and primary power for
up to 24 StorageWorks shelves of different types. It can accommodate both
data storage and controller/data storage combinations. The cabinet and its
StorageWorks shelves can be configured with dual ac power capability for power
redundancy.
SW800-series data center cabinets offer a versatile, modular solution to array
storage problems. You may order the cabinet in a variety of preconfigured
subsystem versions with such options as mixed storage device types and storage,
controller, or power redundancy. You also can order custom configurations to
meet your specific needs. The modularity of the cabinet and its components offers
efficient and cost-effective upgrade paths.
Specifications for SW800-series data center cabinets are shown in Table 2–1.

Introduction 2–1

Figure 2–1 SW800-Series Data Center Cabinet

CXO-3784A-MC

2–2 Introduction

Table 2–1 SW800-Series Data Center Cabinet Specifications
Characteristic

Specification

Dimensions (nominal)

170.00 cm (66.93 in) height, 80.00 cm (31.50
in) width, 87.25 cm (34.35 in) depth

Weight
Minimum configuration
Maximum configuration
Agency compliance

265 kg (585 lb)
535 kg (1180 lb)
FCC, UL, IEC, CSA, TUV, and VDE

Electrical rating
SW800–AA

120/208 volts, 50/60 Hz, 3 phase Y, 24 amperes
per phase

SW800–AB

380–415 volts, 50/60 Hz, 3 phase Y, 16
amperes per phase

Temperature

+10°C to +40°C (+50°F to +104°F)
Reduce rating by 1.8°C for each 1000 m
altitude (1.0°F for each 1000 ft altitude)

Humidity

10 to 85% at maximum wet bulb temperature
of +32°C (+90°F) and minimum dew point of
+2°C (+36°F)
Recommended Environmental Limits†

Operating environment
Temperature

18°C to 24°C (64.4°F to 75.2°F) with an
average rate of change of 3°C/hour maximum
and a step change of 3°C or less

Relative humidity

40 to 60% (noncondensing) with a step change
of 10% or less (noncondensing)

Altitude

Up to 2400 m (8000 ft)

Air quality
(maximum particle count)

Not to exceed 500,000 particles per cubic foot
of air at a size of 0.5 micron or larger

Nominal airflow through enclosure

480 cubic ft/minute

Nonoperating environment
Temperature

–40°C to +66°C (–40°F to +151°F)

Relative humidity

10 to 80% noncondensing

Altitude

4900 m (16,000 ft)

†These limits are for optimum equipment performance and reliability.

Introduction 2–3

2.2 Major Components
The major components of the SW800-series data center cabinet are shown in
Figures 2–2 and 2–3 and are as follows:
•

Cabinet—The cabinet is a general-purpose enclosure that provides rackmount
capability for standard 44.5 cm (17.5 inch) wide components. The cabinet
uses a standard metric rackmount bolt pattern with holes on 25 mm centers.
Hinged front and rear doors and removable side panels allow easy access
to the cabinet interior. Casters and leveler feet are provided to facilitate
placement of the cabinet, and base trim skirts are provided to enhance
appearance.
The cabinet provides 20 horizontal and 4 vertical shelf positions. Storage or
controller shelves may generally be installed in any of the shelf positions,
although some limitations may be imposed by cable length restrictions. The
lower vertical shelf positions in the front and rear of the cabinet are each
reserved for power cable distribution unit (CDU) installation and cable
routing.

2–4 Introduction

•

Shelf brackets—Movable shelf brackets within the cabinet can be configured
to hold any of the StorageWorks shelf types. Shelf brackets must be procured
separately from the cabinet or may come packaged with cabinet options.

•

SBB shelves—StorageWorks building block (SBB) shelves are designed
to house any of the SBBs in the StorageWorks family. The shelves can accept
one or two power supply SBBs as well as a number of peripheral device SBBs.
SBB shelves provide the mechanical mounting, power, and signal interfaces
for the SBBs they house. The shelves are 445 mm (17.5 inch) in width and
are designed to slide into the shelf brackets.

•

SBBs—StorageWorks building blocks are modular computer peripheral
devices or power units from the StorageWorks family. SBBs may be disk
drives, tape drives, shelf power supplies, battery backup units (BBUs), or
other types of peripherals conforming to the Small System Computer
Interface 2 (SCSI–2) specification. They are housed in both 3½-inch and
5¼-inch wide modular carriers designed to plug into slots in the SBB shelves.
Connectors on the rear of each SBB mate with connectors in the SBB shelf to
provide the electrical interface between the two units.

•

Controller shelves—Controller shelves are StorageWorks shelves designed
specifically to house SCSI–2 peripheral controller and cache memory modules.
These shelves may also accept one or two power supply SBBs. Controller
shelves provide the mechanical mounting, power, and signal interfaces for the
units they house.

•

CDUs—Cable distribution units (CDUs) provide the connections necessary
to distribute ac power to the shelves and fans within the SW800 data center
cabinet. CDUs also provide surge and spike protection, along with a circuit
breaker to control the incoming ac power. As an option, two CDUs can be
configured with an auxiliary ac power source to provide redundant primary
power within the cabinet. One CDU can be installed in the lower vertical
opening in each side of the cabinet.

Figure 2–2 Cabinet Major Components

CABINET
SHELF
BRACKET
SBB
SHELF

SBB

CDU
CONTROLLER
SHELF
CXO-4078A-MC

Introduction 2–5

•

TZ8x7-Series Tape Drives–Up to four TZ8x7-series tape drives can be
installed in the upper area of the cabinet, as shown in Figure 2–3. A chassis
rail is used to support the tape drive from one side.

Figure 2–3 TZ8x7-Series Tape Drive

CABINET
CHASSIS
RAIL
TAPE
BEZEL

TZ8x7-SERIES
TAPE DRIVE

CXO-3927A-MC

2–6 Introduction

2.3 Power Configurations
The ac power distribution within the SW800-series data center cabinet can be
configured in one of the following three ways to provide the desired level of power
redundancy to the shelf-mounted peripheral devices:
•

Single-cabinet power configuration

•

Dual-shelf power configuration

•

Dual-cabinet power configuration

A description of each configuration option follows.

2.3.1 Single-Cabinet Power Configuration
In the single-cabinet power configuration, shown in Figure 2–4, a single ac power
source and CDU (A) are used to supply ac power to a single ac power supply
(A) in each shelf. This is the normal configuration for the cabinet, and it provides
no power redundancy to shelf peripheral devices.
Figure 2–4 Single-Cabinet Power Configuration

AC POWER
SUPPLY A
CDU A

SBB SHELF

PRIMARY
AC POWER
SOURCE

PRIMARY
AC POWER
(BLACK CABLE)

CXO-3783A-MC

Introduction 2–7

2.3.2 Dual-Shelf Power Configuration
In the dual-shelf power configuration, shown in Figure 2–5, a single primary
power source and CDU (A) are used to supply ac power to two ac power supplies
(A and B) in each shelf. If either power supply fails, the shelf remains powered
by the other supply. This configuration provides shelf power supply redundancy
to the shelf ’s peripheral devices. Up to 12 shelves can be configured with dual
shelf power from one CDU. An additional CDU, powered also from the primary
AC power source, can be installed to accommodate up to 24 shelves with this
power configuration.
Figure 2–5 Dual-Shelf Power Configuration

AC POWER
SUPPLY A

AC POWER
SUPPLY B

CDU A

SBB SHELF

PRIMARY
AC POWER
PRIMARY
AC POWER
SOURCE

(BLACK OR GRAY CABLE)
PRIMARY
AC POWER
(BLACK OR GRAY CABLE)

CXO-3806A-MC

2–8 Introduction

2.3.3 Dual-Cabinet Power Configuration
In the dual-cabinet power configuration, shown in Figure 2–6, an auxiliary power
source and a second CDU (B) are used to supply ac power to a second ac power
supply (B) in each shelf. If the primary power source, CDU A, or ac power supply
A fails, the shelf remains powered by ac power supply B. This configuration
provides complete power redundancy to the shelf ’s peripheral devices. Up to 24
shelves can be configured in this manner.
Figure 2–6 Dual-Cabinet Power Configuration

AC POWER
SUPPLY A

AC POWER
SUPPLY B

CDU A

SBB SHELF

PRIMARY
AC POWER
SOURCE

PRIMARY
AC POWER
(BLACK
CABLE)

(GRAY
CABLE)

AUXILLARY
AC POWER
SOURCE
AUXILLARY
AC POWER

CDU B
CXO-3782A-MC

Introduction 2–9

2.4 Cabinet Cooling System
The SW800-series data center cabinet contains airflow devices in both the shelves
and the cabinet itself. Each StorageWorks shelf contains two rear-mounted
blowers that move heat from the shelf into the cabinet interior. Six fans in
the top of the cabinet draw air up through the center of the enclosure to blow
the interior heat out through the top. Logic signals allow the status of the shelf
blowers to be monitored by the host system.
The cabinet fans are powered in two groups of three fans each. For single-CDU
systems, both sets of fans are powered from the single CDU. To ensure a level
of cooling redundancy in dual-CDU systems, each CDU powers a separate set of
three fans.
Filler panels are flat plates that serve as covers for unused shelf positions.

2–10 Introduction

3
Site Preparation
This chapter presents the information necessary to prepare a site for the
installation of the StorageWorks SW800-series data center cabinet.

3.1 General Considerations
SW800-series data center cabinets are intended for installation in Class A
computer room environments. Before installing the cabinet, make sure that the
following conditions have been met:
•

The primary power source can supply the required amount of ac power, as
specified in Table 2–1.

•

The site’s primary power receptacles are the correct versions for the power
plug(s) provided with the cabinet. Figure 3–1 specifies the cabinet primary
power plugs supplied for both 60 and 50 Hz power.

Figure 3–1 CDU Primary Power Plugs

PLUGS GOING TO WALL OUTLET (FROM CONTROLLER)
120/208V AC 60HZ
30A
3-PHASE
WYE

5-WIRE
NEMA NO. L21-30P

220-240/380-415V AC 50HZ
20A OR 16A
3-PHASE
WYE

5-WIRE, 4-POLE,
IEC 309

CXO-3807A

•

The site floor can safely bear the weight of the cabinet, as specified in
Table 2–1. Keep in mind that the entire weight of the cabinet is borne by the
small surface area of the four leveler feet when the cabinet is installed in its
final position.

Site Preparation 3–1

•

Adequate space is provided around the cabinet for opening the front and
rear doors, for accessing cables, and for adequate airflow. SW800-series data
center cabinets are not designed to be fastened to adjacent cabinets. See
Figure 3–2 for specific space requirements.

Figure 3–2 Minimum Installation Clearances
31.50 in
800.0 mm

29.33 in
74.5 cm
REAR
DOOR

SW800SERIES
CABINET

34.45 in
87.5 cm MAX

FRONT
DOOR
29.33 in
74.5 cm

CXO-3805A-MC

•

The cabinet is positioned to allow external interface cables to reach to the
appropriate system units.

•

If the cabinet is to be positioned next to other enclosures, there is sufficient
service loop in any connecting cables to allow the cabinet to be moved out for
access.

3.2 Equipment Grounding
SW800-series data center cabinets are normally connected to other equipment
by one or more interface buses. For both safety and reliable operation, proper
grounding is required between the cabinet and other equipment.
WARNING
If enclosures are not connected to a common ground, there is a potential
for personal injury as a result of electric shock.

If ground offset voltages generated in the power distribution system are excessive,
data transmission across interface buses can be affected. Significant performance
degradation or possible data corruption could result.

3–2 Site Preparation

Make sure that site power distribution systems meet local electrical codes prior to
the installation of SW800-series data center cabinets.
To make sure that the power distribution system will perform satisfactorily, a
power system survey should be done before installation. The following areas
should be investigated:
•

Do all outlets have power ground connections?

•

Do the power cords on all equipment at the site have grounding prongs?

•

Are all power outlet neutral connections isolated from ground?

•

Are the grounds for all outlets connected to the same power distribution
panel?

•

Are all devices that are connected to the same breaker as the SW800 data
center cabinet UL or IEC approved?
CAUTION
If there is a deficiency found in any area during the power survey, a
qualified electrician must correct it before installation may begin. Failure
to resolve power survey deficiencies before installing the equipment may
result in personal injury as a result of electric shock.

If no problems are found during the survey, the site grounding system may
be considered to be adequate for safety and reliable SW800-series data center
cabinet operation.

Site Preparation 3–3

4
Unpacking and Installation
This chapter describes the unpacking, installation, inspection, and powering of
StorageWorks SW800-series data center cabinets.

4.1 Unpacking the Cabinet
SW800-series data center cabinets are packed in a corrugated carton attached to
a wooden shipping pallet, as shown in Figure 4–1. Unpack the cabinet as follows:
Note
Before unpacking the equipment, inspect the shipping carton for signs of
external damage. Report any damage to the local carrier and to Digital
Services or your local Digital sales office.

CAUTION
Failure to thermally stabilize preconfigured storage subsystems may
damage drive media or associated electronics when the unit is turned on.
Environmental stabilization begins when the equipment is placed in the
room in which it is to be installed.

1. Remove the cover, the fasteners, and the corrugated board from the pallet.
2. Remove the cartons containing the ramp set and skirt kit and set them aside.
3. Cut the shipping straps. Some cabinets are packaged in a plastic or barrier
bag. If the cabinet arrives in a plastic bag, leave the bag in place until the
cabinet has adjusted to the local temperature and humidity, as follows:
•

To ensure proper operation of Digital storage devices, the StorageWorks
building block (SBB) temperature must be within 18–29°C (65–85°F).
Table 4–1 specifies the time required to thermally stabilize SBBs based
on the ambient shipping temperature.

Unpacking and Installation 4–1

Table 4–1 Thermal Stabilization Specifications
Ambient
Temperature
Range °C

Ambient
Temperature
Range °F

Minimum
Stabilization
Time

60 to 66
50 to 59
40 to 49
30 to 39
18 to 29
10 to 17
0 to 9
–10 to –1
–20 to –11
–30 to –21
–40 to –31

140 to 151
122 to 139
104 to 121
86 to 103
65 to 85
50 to 64
32 to 49
14 to 31
–4 to 13
–22 to –5
–40 to –21

3 hours
2 hours
1 hour
30 minutes
None
30 minutes
1 hour
2 hours
3 hours
4 hours
5 hours

•

If condensation is visible on the outside of the storage device, stabilize the
device and the SBB in the operating environment for 6 hours or until the
condensation is no longer visible, whichever is longer. Do not insert the
storage device into the shelf until it is fully stabilized.

•

If condensation is not visible on the outside of the storage device,
thermally stabilize the device for the amount of time specified in
Table 4–1.

4. Once the cabinet is unpacked, examine the front and rear doors, right and left
side panels, top panel, and undercarriage for any apparent damage. Report
such problems immediately.
5. Retain the shipping container and all packing materials.

4–2 Unpacking and Installation

Figure 4–1 Shipping Container Contents

COVER

CARTON
CONTAINING
SKIRT KIT

CORRUGATED
BOARD

FASTENERS

MANUALS
FASTENERS

PLASTIC OR
BARRIER BAG

SHIPPING
STRAPS
PALLET

CARTON
CONTAINING
UNLOADING
RAMPS
CXO-3533A-TI

Unpacking and Installation 4–3

4.2 Removing the Cabinet from the Pallet
This section describes how to remove the cabinet from the pallet and level it.
Use the following procedure to remove the cabinet from the shipping pallet:
1. Remove any packing material remaining on the pallet.
WARNING
Serious personal injury may result if correct safety precautions are not
taken during the unpacking procedure. All personnel should wear safety
glasses. The ramps, ramp side rails, and metal hardware should be
inspected for the following defects:
•

Cracks more than 25 percent of the ramp depth, either across or
lengthwise on the ramp

•

Knots or knotholes going through the thickness of the ramp and
greater than 50 percent of the ramp width

•

Loose, missing, or broken ramp side rails

•

Loose, missing, or bent metal hardware

If any of these defects exist, do not use the ramp. Investigate alternate
means of removing the cabinet or order a new ramp. (The part number
for the ramp set is 99–08897–05.)

2. Remove the two unloading ramps from the carton and inspect them.
3. Attach the ramps by fitting the metal prongs into the holes on the pallet, as
shown in Figure 4–2. Make sure that the arrows on the ramps match up with
the arrows on the pallet.
4. Extend the ramps to their full length.
5. See Figure 4–3 for the location of the shipping bolts. Remove the bolts.
6. Remove the shipping brackets, shown in Figure 4–3, from the cabinet levelers
and set aside.

4–4 Unpacking and Installation

Figure 4–2 Shipping Pallet Ramp Installation
LEFT
UNLOADING
RAMP

SHIPPING
PALLET

RIGHT RAMP
ATTACHES HERE

RIGHT
UNLOADING
RAMP

EXTEND RAMP TO
FULL LENGTH

CXO-688D_S

Unpacking and Installation 4–5

Figure 4–3 Shipping Bolts and Brackets

LEVELER

SHIPPING
BOLT
SHIPPING
BRACKET

SHR_X1102A_89_SCN

WARNING
The levelers must be raised fully for the cabinet to roll easily down the
unloading ramps. Failure to do so may result in the cabinet tipping off
the pallet or ramp.

7. Loosen the leveler locking nuts and screw the four cabinet levelers all the
way up into the cabinet.
WARNING
Three people are required to unload the cabinet from the shipping pallet.
Failure to use sufficient personnel may result in injury and equipment
damage.

8. Carefully roll the cabinet off the pallet and down the ramps to the floor as
shown in Figure 4–4.

4–6 Unpacking and Installation

Figure 4–4 Removing the Cabinet from the Pallet

CXO-3808A

4.3 Configuring the Cabinet Rack Space
Any shelves to be added to the cabinet should be installed before it is placed in its
permanent position. See Chapter 5 or 6 for the proper location of shelves in your
cabinet. See Chapter 7 for information and procedures regarding shelf bracket
and shelf installation.

4.4 Placing the Cabinet
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.

Unpacking and Installation 4–7

4.5 Leveling the Cabinet
Level the cabinet in its final position as follows:
1. Loosen the locknuts on all four leveler feet as shown in Figure 4–5.
2. Turn each leveler hex nut clockwise until the leveler foot contacts the floor.
3. Adjust all four leveler feet until the cabinet is level and the load is removed
from all casters. Verify that the casters spin freely.
4. Tighten the locknuts on all four leveler feet.
Figure 4–5 Leveler Foot Adjustment

LOCKNUT

LEVELER
HEX NUT
LEVELER
FOOT
CXO-3829A

4.6 Installing the Skirt Kit
The skirt kit is packaged separately inside the corrugated carton with the
cabinet. Installation of the skirt kit is optional. Install the skirt kit around the
base of the cabinet as follows:
1. Unpack the skirt kit carton and use Figure 4–6 to identify the right, left,
front, and rear skirts.
2. Position the skirts next to the cabinet, as shown in Figure 4–6.
3. The skirt fasteners are quarter-turn fasteners. Position each skirt against
the cabinet such that the fasteners mate with the receptacles on the cabinet’s
base.
4. Using a screwdriver, push each fastener into its mating receptacle on the
cabinet base, and turn it one quarter-turn clockwise.
(Once the skirts are installed, there is a small amount of play that allows
them to be adjusted slightly up or down for proper alignment.)

4–8 Unpacking and Installation

Figure 4–6 Cabinet Skirt Installation

CXO-3786A-MC

4.7 Inspecting the Cabinet
Inspect the cabinet installation as follows:
1. Make sure that all hardware within the cabinet is fastened securely, and that
there are no loose pieces present in the cabinet interior.
2. Make sure that all four leveler feet are lowered to support the full weight of
the cabinet, and that the cabinet is level.
3. Check each of the cabinet fans to make sure that the blades turn freely and
are not obstructed. (The top cover may need to be removed to check the fans.)
4. Make sure that there are no obstructions to the airflow from the shelf
blowers. (The side panels may need to be removed to check the shelf blowers.)

Unpacking and Installation 4–9

5. Check the identification label on the rear of the cabinet to verify that the
cabinet is configured to accept the power available at the site.
6. Make sure that all ac power cords connected from the shelves and cabinet
fans to the CDUs are firmly seated in their connectors at both ends.
7. Make sure that all signal cables internal to the cabinet are firmly seated in
their connectors at both ends.
8. Make sure that all SBBs are seated firmly in their shelves.
9. Make sure that any necessary external interface cables are installed and
firmly seated in their connectors.
10. Make sure that the circuit breaker on each CDU is in the

(OFF) position.

4.8 Powering the Cabinet
Once the cabinet has been inspected, power may be applied as follows:
1. Plug the primary power cables from each CDU into the appropriate site power
receptacles.
2. Switch the circuit breaker on each CDU to the (ON) position.

3. Verify that all cabinet fans and shelf blowers are operating and that both
status indicators on each shelf power supply SBB are illuminated. Refer
to the StorageWorks Solutions Shelf and SBB User’s Guide for further
information on shelf status indicators.
4. Initialize the storage subsystem. Procedures for initializing the cabinet’s
controller and storage devices are specific to the host system to which it is
connected. Refer to the appropriate system documentation for initialization
procedures.

4–10 Unpacking and Installation

5
Configuring SW800 Storage-Only Cabinets
This chapter describes the layout and configuration of the SW800 storage-only
data center cabinet. This storage subsystem uses only the StorageWorks
BA350–Sx shelf type. The Small Computer Systems Interface 2 (SCSI–2)
interface is used as the communications path between the cabinet’s storage
devices and their external controllers. SW800 storage-only cabinets can be
configured with up to 24 storage shelves and up to four TZ8x7 tape drives.
WARNING
While working in the cabinet interior, ac power must be removed from
cabinet components. Failure to do so may result in personnel injury as a
result of electric shock.

5.1 Cabinet Configuration
WARNING
Failure to install cabinet components in the proper order could result in
cabinet instability, injury to personnel, and damage to equipment.

Note
To maintain FCC compliance and proper cooling, filler panels must
be installed as specified for your particular cabinet configuration. See
Section 5.2 for further information.

The order of installation of shelves in SW800 storage-only cabinets is
predetermined to allow for cooling, cabinet loading and cable length factors.
Figures 5–1, 5–2, and 5–3 show the layout of both the front and rear of the
cabinet. To ensure proper cooling and to prevent cabinet instability, shelves must
be installed in the order shown by the position numbers in the illustration.

Configuring SW800 Storage-Only Cabinets 5–1

5.1.1 Shelf Locations Without Tape Drives
Figure 5–1 shows the proper cabinet rail mounting holes for each shelf location
when TZ8x7-series tape drives are not installed. Shelf mounting hole numbers
are counted from the top of each rail. The hole number assignments shown in the
figure identify the mounting holes for each shelf bracket’s top mounting stud. See
Chapter 7 for detailed procedures pertaining to the mounting of StorageWorks
shelves.
Figure 5–1 SW800 Storage-Only Cabinet Shelf Locations Without Tape Drives
SHELF
MOUNTING
LOCATIONS

SHELF
MOUNTING
LOCATIONS

STORAGE
POSITION S14

STORAGE
POSITION S18

HOLE
#14

HOLE
#20

STORAGE
POSITION S13

STORAGE
POSITION S17

HOLE
#20

HOLE
#26

STORAGE
POSITION S1

STORAGE
POSITION S12

HOLE
#26

STORAGE
POSITION S11

HOLE
#32

STORAGE
POSITION S3

STORAGE
POSITION S10

HOLE
#38

STORAGE
POSITION S4

STORAGE
POSITION S9

HOLE
#44

STORAGE
POSITION S8

HOLE
#50

STORAGE
POSITION S7

HOLE
#56

STORAGE
POSITION S2

HOLE
#50

STORAGE
POSITION S5

HOLE
#56

STORAGE
POSITION S6

CABINET FRONT

STORAGE
POSITION S24

HOLE
#8

STORAGE
POSITION S22

HOLE
#14

HOLE
#44

STORAGE
POSITION S19

CDU A

STORAGE
POSITION S15

HOLE
#38

HOLE
#2

STORAGE
POSITION S23

HOLE
#8

HOLE
#32

STORAGE
POSITION S20

STORAGE
POSITION S21

STORAGE
POSITION S16

CDU B

HOLE
#2

CABINET REAR
CXO-3811E-MC

5–2 Configuring SW800 Storage-Only Cabinets

5.1.2 TZ8x7-Series Tape Drive/Shelf Locations
Figures 5–2 and 5–3 show the proper cabinet rail mounting holes for each shelf
and tape location when TZ8x7-series tape drives are installed. Mounting hole
numbers are counted from the top of each rail. The hole number assignments
shown in the figure identify the mounting holes for each shelf bracket’s top
mounting stud and for the tape drive chassis rail round standoff locating
hole. See Chapter 7 for detailed procedures pertaining to the mounting of
StorageWorks shelves. See Chapter 8 for detailed procedures pertaining to the
mounting of TZ8x7-series tape drives.
Note that the TZ8x7-series tape drive extends completely through the SW800
storage-only cabinet, and that four drives utilize the upper four shelf mounting
positions in the front and the rear.

Configuring SW800 Storage-Only Cabinets 5–3

Figure 5–2 SW800 Storage-Only Cabinet Shelf Locations With Two Tape Drives
SHELF
MOUNTING
LOCATIONS

TAPE
POSITION
T1

STORAGE
POSITION S12

HOLE
#26

STORAGE
POSITION S11

HOLE
#32

STORAGE
POSITION S3

STORAGE
POSITION S10

HOLE
#38

STORAGE
POSITION S4

STORAGE
POSITION S9

HOLE
#44

STORAGE
POSITION S8

HOLE
#50

STORAGE
POSITION S7

HOLE
#56

STORAGE
POSITION S1
STORAGE
POSITION S2

HOLE
#50

STORAGE
POSITION S5

HOLE
#56

STORAGE
POSITION S6

CDU A

HOLE
#26

STORAGE
POSITION S18

HOLE
#20

STORAGE
POSITION S13
STORAGE
POSITION S17

STORAGE
POSITION S15

HOLE
#20

HOLE
#44

TAPE
POSITION
T2

HOLE
#14

STORAGE
POSITION S14

HOLE
#38

TAPE
POSITION
T1

HOLE
#3

STORAGE
POSITION S16

HOLE
#14

HOLE
#32

STORAGE
POSITION S20

TAPE
POSITION
T2

CDU B

HOLE
#3

STORAGE
POSITION S19

SHELF
MOUNTING
LOCATIONS

CABINET FRONT

CABINET REAR
CXO-4219C-MC

5.2 Filler Panels
Note
To maintain FCC/VDE compliance and proper cooling, filler panels must
be installed as specified for your particular cabinet configuration.

Filler panels can be installed in empty shelf positions for cosmetics and to control
electromagnetic emissions. Filler panels are normally supplied and installed
based on the specific configuration of the SW800 storage-only cabinet ordered.
See Chapter 7 for details on the installation of filler panels.

5–4 Configuring SW800 Storage-Only Cabinets

Figure 5–3 SW800 Storage-Only Cabinet Shelf Locations With Four Tape Drives

HOLE
#3

TAPE
POSITION
T1

HOLE
#15

HOLE
#38
HOLE
#44

HOLE
#15
TAPE
POSITION T4

HOLE
#26

STORAGE
POSITION S11

HOLE
#32

STORAGE
POSITION S3

STORAGE
POSITION S10

HOLE
#38

STORAGE
POSITION S4

STORAGE
POSITION S9

HOLE
#44

STORAGE
POSITION S8

HOLE
#50

STORAGE
POSITION S7

HOLE
#56

STORAGE
POSITION S2

HOLE
#50

STORAGE
POSITION S5

HOLE
#56

STORAGE
POSITION S6

CABINET FRONT

CDU A

HOLE
#32

TAPE
POSITION
T2

STORAGE
POSITION S12

STORAGE
POSITION S1

CDU B

HOLE
#26

TAPE
POSITION
T1

TAPE
POSITION T3

STORAGE
POSITION S14

TAPE
POSITION T4

STORAGE
POSITION S13

TAPE
POSITION
T2

STORAGE
POSITION S16

SHELF/TAPE
MOUNTING
LOCATIONS

STORAGE
POSITION S15

SHELF/TAPE
MOUNTING
LOCATIONS

CABINET REAR
CXO-3920E-MC

5.3 Power Configuration and Power Cable Routing
The power in SW800 storage-only cabinets can be configured in any of the forms
described in Section 2.3. See Chapter 9 for detailed procedures on configuring
power within the cabinet. Figures 5–1 and 5–3 show the locations of both the
primary and redundant CDUs.
Table 5–1 specifies the power cable length required for each shelf position in
SW800 storage-only cabinets.

Configuring SW800 Storage-Only Cabinets 5–5

Table 5–1 SW800 Storage-Only Cabinet Power Cable Lengths
Storage Shelf Position

Cable Length Required

S1/S11

2.13 m (7.00 ft)

S2/S10

2.13 m (7.00 ft)

S3/S9

2.13 m (7.00 ft)

S4/S8

2.13 m (7.00 ft)

S5/S7

1.52 m (5.00 ft)

S6/S12

1.52 m (5.00 ft)

S13/S17

2.74 m (9.00 ft)

S14/S18

2.74 m (9.00 ft)

S15/S19

2.74 m (9.00 ft)

S16/S20

2.74 m (9.00 ft)

S21/S23

2.13 m (7.00 ft)

S22/S24

2.13 m (7.00 ft)

T1–T4

2.74 m (9.00 ft)

Power cables in the front of the cabinet are normally routed along the inside of
the left-most vertical cabinet rail. Power cables in the rear of the cabinet are
normally routed along the outside of the center vertical rail. (See Figure 5–4).

5.4 Signal Cabling and Routing
Note
Cables must be routed as described in this section to maintain FCC/VDE
compliance of SW800 storage-only cabinets

Signal cabling in the SW800 storage-only cabinet consists of host-to-shelf SCSI–2
cabling and intershelf SCSI–2 cabling.

5.4.1 SCSI–2 Cable Selection and Connection
The procedures involved in SCSI bus design and connection are specific to the
components being bused together. Refer to the following documentation for
details on the selection of SCSI–2 cables and their connection to the cabinet’s
controller and storage shelves:
•

StorageWorks Solutions Family Configuration Guide

•

StorageWorks Solutions Shelf and SBB User’s Guide

5.4.2 Host-to-Shelf SCSI–2 Cable Routing
Host SCSI–2 signal cables enter SW800 storage-only cabinets through openings
in the rear edges of the base pan of the cabinet. Host cables destined for rear
shelves are normally routed along the base pan to the right-most vertical rail.
They are then routed to the the right-hand side of the destination shelf along
the rail. Host cables destined for front shelves pass to the front of the cabinet
through the openings next to the CDUs. On the front of the cabinet, host cables
are normally routed to the center vertical cabinet rail and then to the right-hand
side of the destination shelf along the rail.

5–6 Configuring SW800 Storage-Only Cabinets

5.4.3 Intershelf SCSI–2 Cable Routing
Inter-shelf SCSI–2 cables are routed along the vertical cabinet rail to the right of
the shelves. Half-meter SCSI–2 cables are normally used to link shelves to each
other.

5.5 General Cable Routing Rules
Cables should be routed and installed with the following rules in mind:
WARNING
Cabinet rail edges may be sharp and can slice or abrade skin or cable
insulation.

•

Cables should be routed in a manner that allows the shortest overall cable
length.

•

Signal cables should be kept away from power cables.

•

Care should be taken to avoid sharp cable bends.

•

Cables should be routed to allow SBBs and controller modules to be freely
inserted and removed from their shelves.

•

Cables should not be routed tightly against the metal edges of the cabinet.

•

Signal cable bundling along the outside of the cabinet rails should be done to
allow the doors to easily close.

•

Cables should be fastened along cabinet rails using cable ties or nylon cable
clamps, U-nuts, and screws. Added cables should be included in existing
cable clamps where possible.

Figure 5–4 shows the cabinet areas in which cable routing is allowed.

Configuring SW800 Storage-Only Cabinets 5–7

Figure 5–4 SW800 Storage-Only Cabinet Cable Routing

CABINET FRONT
ALLOWABLE CABLE ROUTING AREA

5–8 Configuring SW800 Storage-Only Cabinets

CABINET REAR
CXO-3810A-MC

6
Configuring SW800 Controller/Storage
Cabinets
This chapter describes the layout and configuration of SW800 controller/storage
data center cabinets. These cabinet configurations use StorageWorks HSJ40™
or HSZ40™ array controllers mounted in BA350–Mx shelves. Storage devices
are housed in BA350–Sx shelves. SW800 controller/storage cabinets can be
configured with up to eight controllers in redundant pairs, up to eighteen storage
shelves, and up to four TZ8x7 tape drives.

6.1 HSJ40 and HSZ40 Controllers
The HSJ40 Controller uses Digital’s CI™ interface as the communication path
with the host computer, and the Small Computer System Interface 2 (SCSI–2) as
the storage device bus. Factory preconfigured cabinets using the HSJ40 controller
are designated by the model number SW81x.
The HSZ40 controller uses the SCSI–2 interface as the communication path with
the host computer, as well as for the storage device bus.
The configuration of HSJ40 and HSZ40 cabinets is almost identical. The only
difference is the host interface cable used, and the fact that a StorageWorks
DWZZA SCSI signal converter may be used with the HSZ40 controller. Refer
to the StorageWorks Array Controller HS Family of Array Controllers User’s
Guide and the StorageWorks BA350–MA Controller Shelf User’s Guide for further
information on HSJ40 and HSZ40 controllers and their installation.

6.2 Cabinet Configuration
WARNING
While working in the cabinet interior, ac power must be removed from
cabinet components. Failure to do so may result in personal injury as a
result of electric shock.

Prior to performing any of the procedures in this chapter, remove ac power from
cabinet components. If the cabinet is operating, spin down all disk drives and
halt all tape drives in the cabinet. Switch the circuit breaker on the front panel
of the cabinet’s CDU(s) to the
(OFF) position.
WARNING
Failure to install cabinet components in the proper order could result in
cabinet instability, injury to personnel, and damage to equipment.

Configuring SW800 Controller/Storage Cabinets

6–1

The order of installation of shelves in SW800 controller/storage cabinets is
predetermined to allow for cooling, cabinet loading and cable length factors.
Figures 6–1, 6–2, and 6–3 show the layout of both the front and rear of the
cabinet. To ensure proper cooling and to prevent cabinet instability, shelves must
be installed in the order shown by the position numbers in the illustration.
Note that no more than 18 storage shelves may be installed in the
controller/storage cabinet. Certain storage positions are reserved for passing
cables from the front to the rear of the cabinet. Note also that each storage
position is assigned to be cabled to a specific controller, as designated by the Cx
number in each storage position.

6.2.1 Shelf Locations Without Tape Drives
Figure 6–1 shows the proper cabinet rail mounting holes for each shelf location
when TZ8x7-series tape drives are not installed. Shelf mounting hole numbers
are counted from the top of each rail. The hole number assignments shown in the
figure identify the mounting holes for each shelf bracket’s top mounting stud. See
Chapter 7 for detailed procedures pertaining to the mounting of StorageWorks
shelves.

6.2.2 TZ8x7-Series Tape Drive/Shelf Locations
Figures 6–2 and 6–3 show the proper cabinet rail mounting holes for each
shelf location when TZ8x7-series tape drives are installed. Shelf mounting hole
numbers are counted from the top of each rail. The hole number assignments
shown in the figure identify the mounting holes for each shelf bracket’s top
mounting stud and for the tape drive chassis rail round standoff locating
hole. See Chapter 7 for detailed procedures pertaining to the mounting of
StorageWorks shelves. See Chapter 8 for detailed procedures pertaining to the
mounting of TZ8x7-series tape drives.
Note that the TZ8x7-series tape drive extends completely through the SW800
controller/storage cabinet, and that two drives utilize the upper two shelf
mounting positions in the front and the rear.

6.3 Filler Panels
Note
To maintain FCC/VDE compliance and proper cooling, filler panels must
be installed as specified for your particular cabinet configuration.

Filler panels can be installed in unused shelf positions for cosmetics and to
control electromagnetic emissions. Filler panels are normally supplied and
installed based on the specific configuration of the SW800 controller/storage
cabinet ordered. See Chapter 7 for details on the installation of filler panels.

6–2 Configuring SW800 Controller/Storage Cabinets

Figure 6–1 SW800 Controller/Storage Cabinet Shelf Locations Without Tape Drives

SHELF
MOUNTING
LOCATIONS
STORAGE
POSITION S15

(C3)

HOLE
#8

STORAGE
POSITION S14

(C3)

HOLE
#14

STORAGE
POSITION S13

(C3)

CONTROLLER
POSITION C4

HOLE
#2

CONTROLLER
POSITION C3

SHELF
MOUNTING
LOCATIONS

(C3/C4)

STORAGE
POSITION S18

HOLE
#2

(C3/C4)

STORAGE
POSITION S17

HOLE
#8

(C3/C4) STORAGE
POSITION S16

HOLE
#14
CABLE
PASSTHROUGH

CONTROLLER
POSITION C2

HOLE
#26

CONTROLLER
POSITON C1

CABLE
PASSTHROUGH

HOLE
#26

(C2)

STORAGE
POSITION S11

HOLE
#32

(C1)

(C2)

STORAGE
POSITION S10

HOLE
#38

STORAGE
POSITION S4

(C1)

(C2)

STORAGE
POSITION S9

HOLE
#44

HOLE
#50

STORAGE
POSITION S5

(C1)

(C2)

STORAGE
POSITION S8

HOLE
#50

HOLE
#56

STORAGE
POSITION S6

(C1)

(C2)

STORAGE
POSITION S7

HOLE
#56

HOLE
#32
HOLE
#38
HOLE
#44

STORAGE
POSITION S2

(C1)

STORAGE
POSITION S3

CABINET FRONT

CDU A

STORAGE
POSITION S12

(C1)

CDU B

(C2)

STORAGE
POSITION S1

CABINET REAR
CXO-4161D-MC

6.4 Power Configuration and Power Cable Routing
The power in SW800 controller/storage cabinets can be configured in any of the
forms described in Section 2.3. Refer to Chapter 9 for detailed procedures on
configuring power within SW800 controller/storage cabinets. Figures 6–1, 6–2,
and 6–3 show the locations of both the primary and redundant CDUs.
Table 6–1 specifies the power cable length required for each shelf and tape
position in SW800 controller/storage cabinets.

Configuring SW800 Controller/Storage Cabinets

6–3

Figure 6–2 SW800 Controller/Storage Cabinet Shelf Locations With Two Tape Drives Installed
SHELF
MOUNTING
LOCATIONS

HOLE
#14

TAPE
POSITION
T2
(C1-C4)

TAPE
POSITION
T1
(C1-C4)

STORAGE
POSITION S13

(C3)

CONTROLLER
POSITION C4

HOLE
#3

CONTROLLER
POSITION C3

SHELF
MOUNTING
LOCATIONS

TAPE
POSITION
T1
(C1-C4)

TAPE
POSITION
T2
(C1-C4)

(C3/C4) STORAGE
POSITION S14

HOLE
#14
CABLE
PASSTHROUGH

CONTROLLER
POSITION C2

CONTROLLER
POSITON C1

CABLE
PASSTHROUGH

HOLE
#26

HOLE
#3

HOLE
#26

(C2)

STORAGE
POSITION S11

HOLE
#32

(C1)

(C2)

STORAGE
POSITION S10

HOLE
#38

STORAGE
POSITION S4

(C1)

(C2)

STORAGE
POSITION S9

HOLE
#44

HOLE
#50

STORAGE
POSITION S5

(C1)

(C2)

STORAGE
POSITION S8

HOLE
#50

HOLE
#56

STORAGE
POSITION S6

(C1)

(C2)

STORAGE
POSITION S7

HOLE
#56

HOLE
#32
HOLE
#38
HOLE
#44

STORAGE
POSITION S2

(C1)

STORAGE
POSITION S3

CABINET FRONT

CDU A

STORAGE
POSITION S12

(C1)

CDU B

(C2)

STORAGE
POSITION S1

CABINET REAR
CXO-4220B-MC

6–4 Configuring SW800 Controller/Storage Cabinets

Figure 6–3 SW800 Controller/Storage Cabinet Shelf Locations With Four Tape Drives Installed
SHELF/TAPE
MOUNTING
LOCATIONS

CABLE
PASSTHROUGH

HOLE
#32

CONROLLER
POSITION C4

TAPE
POSITION
T1
(C1-C4)

TAPE (C1-C4) TAPE (C1-C4)
POSITION T4 POSITION T3

TAPE
POSITION
T1
(C1-C4)

TAPE
POSITION
T2
(C1-C4)

TAPE (C1-C4) TAPE (C1-C4)
POSITION T3 POSITION T4

CONTROLLER
POSITION C2

HOLE
#15

TAPE
POSITION
T2
(C1-C4)

CONTROLLER
POSITION C1

HOLE
#3

CONTROLLER
POSITION C3

SHELF/TAPE
MOUNTING
LOCATIONS

HOLE
#3

HOLE
#15
CABLE
PASSTHROUGH

HOLE
#32

(C1)

(C2)

STORAGE
POSITION S9

HOLE
#38

STORAGE
POSITION S3

(C1)

(C2) STORAGE
POSITION S8

HOLE
#44

HOLE
#50

STORAGE
POSITION S4

(C1)

(C2) STORAGE
POSITION S7

HOLE
#50

HOLE
#56

STORAGE
POSITION S5

(C1)

(C2) STORAGE
POSITION S6

HOLE
#56

HOLE
#38
HOLE
#44

STORAGE
POSITION S2

CABINET FRONT

CDU A

STORAGE
POSITION S10

(C1)

CDU B

(C2)

STORAGE
POSITION S1

CABINET REAR
CXO-4162D-MC

Configuring SW800 Controller/Storage Cabinets

6–5

Table 6–1 SW800 Controller/Storage Cabinet Power Cable Lengths
Storage Shelf Position

Cable Length Required

S1/S11

2.13 m (7.00 ft)

S2/S10

2.13 m (7.00 ft)

S3/S9

2.13 m (7.00 ft)

S4/S8

2.13 m (7.00 ft)

S5/S7

1.52 m (5.00 ft)

S6/S12

1.52 m (5.00 ft)

S13/S16

2.74 m (9.00 ft)

S14/S17

2.74 m (9.00 ft)

S15/S18

2.74 m (9.00 ft)

C1/C2

2.13 m (7.00 ft)

C3/C4

2.13 m (7.00 ft)

T1–T4

2.74 m (9.00 ft)

6.5 Signal Cabling and Routing
Note
Cables must be routed as described in this section to maintain FCC/VDE
compliance of SW800 controller/storage cabinets.

Signal cabling in the SW800 controller/storage cabinet consists of host-tocontroller CI cabling, controller-to-shelf SCSI–2 cabling, and intershelf SCSI–2
cabling.

6.5.1 Host-to-Controller Cable Routing
Host interface cables enter SW800 controller/storage cabinets through openings
in the rear edges of the base pan of the cabinet.

6–6 Configuring SW800 Controller/Storage Cabinets

Note
If a StorageWorks DWZZA–AA SCSI signal converter is being used on the
host interface, it may be desirable to house the converter in the SW800
cabinet. If either the front or rear lower shelf position is unused, the
converter may be placed in the base pan of the cabinet. In this case, the
host interface cable is routed through openings in the rear edges of the
base pan of the cabinet and directly to the single-ended side of the signal
converter. The cable connecting to the differential side of the converter is
then routed as described in the following paragraphs.

Host interface cables destined for rear-mounted controllers are normally routed
along the base pan to the left-most vertical cabinet rail and on to the appropriate
controller along the rail.
Host interface cables destined for front-mounted controllers pass to the front of
the cabinet through the openings next to the CDUs.
In the front of the cabinet, host interface cables are normally routed to the center
vertical cabinet rail and on to the appropriate controller along the rail.

6.5.2 SCSI–2 Cable Selection and Connection
The procedures involved in SCSI bus design and connection are specific to the
components being bused together. Refer to the following documentation for
details on the selection of SCSI–2 cables and their connection to the cabinet’s
controller and storage shelves:
•

StorageWorks Solutions Family Configuration Guide

•

StorageWorks Solutions Shelf and SBB User’s Guide

•

StorageWorks Array Controller HS Family of Array Controllers User’s Guide

•

StorageWorks BA350–MA Controller Shelf User’s Guide

6.5.3 Controller-to-Shelf SCSI–2 Cable Routing
Controller-to-shelf SCSI–2 cables are normally routed to the vertical cabinet rail
between the controller and the shelves the controller serves.
When connecting front-mounted controllers with tapes or shelves mounted in the
rear of the cabinet, pass the cables through the vacant storage positions indicated
in Figures 6–1, 6–2, and 6–3.
Table 6–2 specifies the SCSI–2 cable length required to connect each controller
position with its companion shelves in the SW800 controller/storage cabinets.

Configuring SW800 Controller/Storage Cabinets

6–7

Table 6–2 SW800 Controller/Storage Cabinet SCSI–2 Cable Lengths
Controller Position

Storage Shelf/Tape Position

Cable Length
Required

S1–S6

1.00 m (3.28 ft)

S7–S12

2.00 m (6.56 ft)

S13–S15

1.00 m (3.28 ft)

S16–S18

2.00 m (6.56 ft)

S16–S18

2.00 m (6.56 ft)

C1–C4

T1–T4

2.00 m (6.56 ft)

6.5.4 Intershelf Cable Routing
Intershelf SCSI–2 cables are routed along the vertical cabinet rail to the right of
the shelves. Half-meter SCSI–2 cables are normally used to link shelves to each
other.

6.6 General Cable Routing Rules
Cables should be routed and installed with the following rules in mind:
WARNING
Cabinet rail edges may be sharp and can slice or abrade skin or cable
insulation.

•

Cables should be routed in a manner that allows the shortest overall cable
length.

•

Signal cables should be kept away from power cables.

•

Care should be taken to avoid sharp cable bends.

•

Cables should be routed to allow SBBs and controller modules to be freely
inserted and removed from their shelves.

•

Cables should not be routed tightly against the metal edges of the cabinet.

•

Signal cable bundling along the outside of the cabinet rails should be done to
allow the doors to easily close.

•

Cables should be fastened along cabinet rails using cable ties or nylon cable
clamps, U-nuts, and screws. Added cables should be included in existing
cable clamps where possible.

Figure 6–4 shows the cabinet areas in which cable routing is allowed.

6–8 Configuring SW800 Controller/Storage Cabinets

Figure 6–4 SW800 Controller/Storage Cabinet Cable Routing

CABLE PASSTHROUGH
(0 - 2 TAPE DRIVES
INSTALLED)

CABLE PASSTHROUGH
(4 TAPE DRIVES
INSTALLED)

CABINET FRONT

CABINET REAR

ALLOWABLE CABLE ROUTING AREA

CXO-3810C-MC

Configuring SW800 Controller/Storage Cabinets

6–9

7
Installing StorageWorks Shelves
This chapter describes the installation of StorageWorks shelves into SW800-series
data center cabinets. Procedures for horizontal and vertical front and rear shelf
installation are presented.
There are two types of shelf brackets: shelf brackets with screw mounts and shelf
brackets with tab mounts.

7.1 General Shelf Mounting Considerations
Note
In the following descriptions and procedures, the terms front and rear
refer to locations in the cabinet. The terms inner and outer refer to
positions on the shelf brackets.

Each metric bracket set consists of a pair of shelf brackets, stop brackets, and
locking brackets. See Figure 7–2 for examples of these components.
There are two types of shelf brackets: shelf brackets with screw mounts and shelf
brackets with tab mounts.
The stop brackets are attached to the inner portion of the shelf brackets to
position the shelf within the brackets. The locking brackets fix the shelf in place.
Various combinations of stop positions and locking bracket size are necessary to
situate a particular shelf for proper clearance from the cabinet doors.
The shelf bracket and stop bracket parts are used to mount all types of
StorageWorks shelves in all locations. The bracket set for shelves mounted
in various positions in the cabinet differs only in that the locking brackets are
unique parts sized for specific cabinet positions.

7.2 Shelf Bracket Types
SW800 cabinets can come preconfigured with screw-mounted or tab-mounted shelf
brackets. Cabinets that have been field modified can contain both types of shelf
brackets. See the following descriptions to determine your cabinet configuration.

Installing StorageWorks Shelves 7–1

7.2.1 Screw-Mounted Shelf Brackets
A typical screw-mounted bracket set is shown in Figures 7–2 and 7–8. The shelf
bracket used in this set can be identified by the two screw holes between the front
of the bracket and the stop bracket screw holes.
In the horizontal position, the screw-mounted brackets are attached to the
vertical cabinet rails with six screws. In the vertical position, the screw-mounted
brackets are attached to the horizontal cabinet bracket with six screws.

7.2.2 Tab-Mounted Shelf Brackets
A typical tab-mounted bracket set is shown in Figures 7–4 and 7–10. The shelf
bracket used in this set can be identified by the formed metal slot with four
mounting tabs between the front of the bracket and the stop bracket screw holes.
In the horizontal position, the tab-mounted brackets are attached to the vertical
cabinet rails with four M5 KEP nuts and four mounting tabs. In the vertical
position, the tab-mounted brackets are attached to the horizontal cabinet bracket
with four M5 KEP nuts and four mounting tabs.

7.2.3 Horizontal Cabinet Brackets on the Vertical Slots
Before installing a shelf bracket kit in the vertical position in a SW800 cabinet,
determine the type of horizontal cabinet bracket. The type of horizontal cabinet
bracket determines which type of shelf bracket kit is compatible.
There are two types of horizontal cabinet brackets; a set of two narrow brackets
or a one-piece bracket:
•

Type 1: Two narrow brackets, one attached to the front vertical cabinet rails
and the other attached to the interior vertical rails. The rear bracket has two
holes with captive floating nuts. Type 1 horizontal cabinet brackets accept
only screw-mounted shelf brackets. To install tab-mounted shelf brackets
in a cabinet with type 1 horizontal cabinet brackets, see Section 7.7.2 for
cabinet configuration differences and Section 7.7.3 for cabinet modification
procedures.

•

Type 2: A one-piece bracket that attaches to the vertical cabinet rails and has
four holes at the rear where the shelf bracket’s mounting tabs are inserted.
The type 2 horizontal cabinet bracket accepts either the screw-mounted or
tab-mounted brackets.

7.3 Shelf Bracket Kit Configurations
Before mounting the metric shelf bracket kit, check the contents of the bracket kit
against the parts list. See Table 7–1 for the SW800 Metric Shelf Screw-Mounted
Bracket Kit Parts List. See Table 7–2 for the SW800 Metric Shelf Tab-Mounted
Bracket Kit Parts List.

7–2 Installing StorageWorks Shelves

Table 7–1 SW800 Metric Shelf Screw-Mounted Bracket Kit Parts List
Kit Part Number 70–30092–05
Digital Part Number

Description

Quantity

74–46442–01

Shelf mounting bracket

74–46441–01

Front shelf locking bracket

74–46441–02

Front shelf locking bracket

74–46441–03

Front shelf locking bracket (not used)

74–46439–01

Rear shelf locking bracket

74–46439–02

Rear shelf locking bracket

74–46440–01

Stop bracket

90–00063–39

Screw, THRL 10–32 TRS .500 ARCS

90–07786–00

U-nuts, 10–32

Table 7–2 SW800 Metric Shelf Tab-Mounted Bracket Kit Parts List
Kit Part Number 70–30092–01
Digital Part Number

Description

Quantity

74–47506–01

Shelf mounting bracket

74–46441–01

Front shelf locking bracket

74–46441–02

Front shelf locking bracket

74–46441–03

Front shelf locking bracket (not used)

74–46439–01

Rear shelf locking bracket

74–46439–02

Rear shelf locking bracket

74–46440–01

Stop bracket

90–00063–39

Screw, THRL 10–32 TRS .500 ARCS

90–40148–02

Nut, KEP, M5, 8 MMAF, CSZ

Installing StorageWorks Shelves 7–3

7.4 Cabinet Preparation and Shutdown
Before mounting the metric shelf bracket kit, perform the following actions:
WARNING
While working in the cabinet interior, ac power must be removed from
cabinet components. Failure to do so can result in personnel injury as a
result of electric shock.

1. If the cabinet is installed and operating, spin down all disk drives and halt
all tape drives in the cabinet.
2. Remove ac power from cabinet components by switching the circuit breaker
on the front panel of the cabinet’s power controllers or cable distribution units
to the OFF or
position.
After you have made sure that all the parts are present and that ac power has
been removed from the cabinet components, you can begin shelf installation.

7.5 Accessing the Cabinet Rack Space
In maximum configurations when access to the interior of the cabinet is limited,
external cabinet panels might need to be removed before shelves can be installed
or reconfigured. Section 7.5.1 presents procedures for removing exterior cabinet
panels.
The front and rear cabinet doors are held closed by door locks mounted on
the smooth vertical panel of each door. The locks are released by turning
counterclockwise with a 5/32-inch hex wrench.

7.5.1 Removing the Exterior Cabinet Panels
As shown in Figure 7–1, there are three side panel hanger clips on each side
of the cabinet. A matching set of hanger clips are attached to each side panel.
Remove the side panels as follows:

7–4 Installing StorageWorks Shelves

Figure 7–1 Exterior Cabinet Panel Removal and Installation

FASTENER
PIN
(4 PLACES)
NYLON SNAP
FASTENER
(4 PLACES)

TOP COVER

M6x40mm BOLT
(4 PLACES)

LIP

SIDE PANEL
HANGER
CLIPS
UPPER
SIDE PANEL
HANGER
CLIP

LOWER
SIDE PANEL
HANGER
CLIPS

CABINET
FRONT
SIDE PANEL

CXO-3787A-MC

Installing StorageWorks Shelves 7–5

1. Move the cabinet away from adjacent enclosures as necessary.
2. Loosen the top cover by pushing up on its front and rear edges until it snaps
free of its fasteners.
WARNING
The top cover is heavy and awkward to lift. Removing it requires two
people. Failure to use sufficient personnel can result in personnel injury
or equipment damage.

3. Using two people, lift the top cover from the cabinet and set it aside.
4. Remove the bolts attaching the side panels to the top side rails of the cabinet.
5. Grasp a panel along its front and rear edges and lift up until the hanger clips
disengage. Lift the panel away from the cabinet.
6. Repeat the previous step to remove the other panel.
7. Install the horizontal or vertical shelf brackets using the following procedures.

7.6 Horizontal Shelf Installation
There are two types of horizontal shelf bracket installations: those using shelf
brackets with screw mounts, and those using shelf brackets with tab mounts.
See Section 7.6.1 for installations using shelf brackets with screw mounts. See
Section 7.6.2 for installations using shelf brackets with tab mounts and mounting
studs. Either the screw-mounted bracket set or tab-mounted bracket set can be
used in horizontal shelf installations in any SW800 cabinet.

7.6.1 Installing Horizontal Shelf Brackets with Screw Mounts
Shelf bracket installations for front and rear horizontal shelves using screw
mounts are shown in Figures 7–2 and 7–3. Using the illustrations as a guide,
install horizontal shelf brackets as follows:
WARNING
Cabinet rail edges can be sharp and can slice or abrade skin or cable
insulation.

Note
Two small ESD grounding posts are provided with the cabinet. One is
located on a front vertical cabinet rail, and one on a rear vertical cabinet
rail. Should an ESD grounding post interfere with the installation of a
shelf, move the post out of the way to any free hole on the cabinet.

1. Turn the cabinet power off as described in Section 7.4.
2. Determine the correct shelf mounting locations and corresponding cabinet
rail mounting holes for the shelf bracket. Refer to Chapter 5 or 6 for this
information.

7–6 Installing StorageWorks Shelves

3. Position the shelf bracket at the correct mounting holes just behind the outer
flange of the vertical cabinet rail.
4. Using the shelf bracket as a template, mark the two U-nut mounting holes on
the inner flange of the cabinet rail.
5. Remove the shelf bracket and install two U-nuts along the inner flange of the
cabinet rail at the holes marked in step 4.
6. Position and fasten the shelf bracket to the outer flange of the cabinet rail
with two screws.
7. Fasten the bracket to the U-nuts with two screws.
8. Using Table 7–3, determine the correct stop bracket position for the shelf type
being installed.
Table 7–3 Horizontal Shelf Stop Bracket Positions
StorageWorks
Shelf Type

Front Shelf
Stop Bracket Position

Rear Shelf
Stop Bracket Position

BA350–Sx

BA350–Mx

9. Insert the tab on the stop bracket into the slot at the correct stop position on
the shelf bracket. Fasten the stop bracket to the shelf bracket.
10. Repeat steps 2 through 9 to mount the companion shelf bracket on the
opposite cabinet rail. To be sure of proper alignment of the brackets, use care
to mount the bracket to the correct rail mounting holes.
11. With the power supply end of the shelf to the left and the blowers facing
the cabinet, slide the shelf into the shelf brackets until it contacts the inner
stop brackets. The shelf should slide smoothly into the brackets. If it binds,
remove it and check the alignment of the shelf brackets. The shelf bracket
mounting screws might need to be loosened slightly to allow the brackets to
align with the shelf. Tighten the screws when the shelf brackets are properly
aligned.
12. Using Table 7–4, verify that you have the correct locking bracket part number
for the shelf type and position (front or rear) being installed.
Table 7–4 Horizontal Shelf Locking Bracket Part Numbers
StorageWorks
Shelf Type

Front Shelf Locking
Bracket Part No.

Rear Shelf Locking
Bracket Part No.

BA350–Sx

74–46441–01

74–46439–01

BA350–Mx

74–46441–02

74–46439–02

13. Once the shelf is positioned within the shelf brackets, install the shelf ’s
locking brackets to both shelf brackets with screws. Push the locking bracket
against the shelf to seat it before tightening the screws.

Installing StorageWorks Shelves 7–7

Figure 7–2 Front Horizontal Shelf Bracket Installation

STOP
POSITION
#4

U-NUT, 10-32
(2 PLACES)

FRONT
VERTICAL
CABINET
RAIL

STOP
POSITION
#3
STOP
POSITION
#2

STOP
POSITION
#1

STOP
POSITION
#5

FRONT SHELF
LOCKING
BRACKET

STOP
BRACKET

SCREW, THRL 10-32
TRS .500 XRCS
(7 PLACES)
SHELF MOUNTING
BRACKET (LEFT
FRONT POSITION)

CXO-3768A-MC

7–8 Installing StorageWorks Shelves

Figure 7–3 Rear Horizontal Shelf Bracket Installation
STOP
POSITION
#4

U-NUT, 10-32
(2 PLACES)

REAR
VERTICAL
CABINET
RAIL

STOP
POSITION
#3
STOP
POSITION
#2

STOP
POSITION
#1

STOP
POSITION
#5

REAR SHELF
LOCKING
BRACKET

STOP BRACKET

SCREW, THRL 10-32
TRS .500 XRCS
(7 PLACES)
SHELF MOUNTING
BRACKET (LEFT
REAR POSITION)

CXO-3767A-MC

Installing StorageWorks Shelves 7–9

7.6.2 Installing Horizontal Shelves with Tab Mounts
Shelf bracket installations for front and rear horizontal shelves using tab-mount
brackets are shown in Figures 7–4 and 7–5. Using the illustrations as a guide,
install horizontal shelf brackets as follows:
WARNING
Cabinet rail edges can be sharp and can slice or abrade skin or cable
insulation.

1. Turn the cabinet power off as described in Section 7.4.
2. Determine the correct shelf mounting locations and corresponding cabinet
rail mounting holes for the shelf brackets. Refer to Chapter 5 or 6 for this
information.
3. Position the shelf bracket at the correct mounting holes just behind the outer
flange of the vertical cabinet rail.
4. Align the bracket mounting studs and mounting tabs with the appropriate
holes in the front vertical cabinet rail and seat the studs and tabs in the
holes.
5. Fasten the bracket to the cabinet rail by installing KEP nuts on the uppermost and lower-most bracket mounting studs. Do not install KEP nuts on the
two middle studs at this time.
6. Using Table 7–5, determine the correct stop bracket position for the shelf type
being installed.
Table 7–5 Horizontal Shelf Stop Bracket Positions
StorageWorks
Shelf Type

Front Shelf
Stop Bracket Position

Rear Shelf
Stop Bracket Position

BA350–Sx

BA350–Mx

5 (stop bracket not used)

7. Insert the tab on the stop bracket into the slot at the correct stop position on
the shelf bracket. Fasten the stop bracket to the shelf bracket. Note that for
front-mounted BA350–Mx shelves, the inner lip on the shelf mounting bracket
serves as the stop bracket.

7–10 Installing StorageWorks Shelves

8. Repeat steps 2 through 7 to mount the companion shelf bracket on the
opposite cabinet rail. To be sure of proper alignment of the brackets, use care
to mount the bracket to the correct rail mounting holes.
9. With the power supply end of the shelf to the left and the blowers facing
the cabinet, slide the shelf into the shelf brackets until it contacts the inner
stop brackets. The shelf should slide smoothly into the brackets. If it binds,
remove it and check the alignment of the shelf brackets. The shelf bracket
mounting nuts might need to be loosened slightly to allow the brackets to
align with the shelf. Tighten the nuts when the shelf brackets are properly
aligned.
10. Using Table 7–6, verify that you have the correct locking bracket part number
for the shelf type and position (front or rear) being installed.
Table 7–6 Horizontal Shelf Locking Bracket Part Numbers
StorageWorks
Shelf Type

Front Shelf Locking
Bracket Part No.

Rear Shelf Locking
Bracket Part No.

BA350–Sx

74–46441–01

74–46439–01

BA350–Mx

74–46441–02

74–46439–02

11. Once the shelf is positioned within the shelf brackets, install both shelf
locking brackets with KEP nuts on the middle bracket mounting studs,
as shown. Push each locking bracket against the shelf to seat it before
tightening the nuts.

Installing StorageWorks Shelves 7–11

Figure 7–4 Front Horizontal Shelf Bracket Installation

STOP
POSITION
#4
STOP
POSITION
#3
STOP
POSITION
#2
FRONT
VERTICAL
CABINET
RAIL

MOUNTING
TAB
(4 PLACES)

STOP
POSITION
#1

FRONT SHELF
LOCKING
BRACKET

STOP
POSITION
#5

STOP
BRACKET

SCREW, THRL,
10-32 TRS
.500 XRCS

SHELF MOUNTING
BRACKET (LEFT
FRONT POSITION)

NUT,
M5 KEP
(4 PLACES)

MOUNTING
STUD
(4 PLACES)

7–12 Installing StorageWorks Shelves

INNER
FLANGE
CXO-4074A-MC

Figure 7–5 Rear Horizontal Shelf Bracket Installation

STOP
POSITION
#4
STOP
POSITION
#3
STOP
POSITION
#2
REAR
VERTICAL
CABINET
RAIL

MOUNTING
TAB
(4 PLACES)

STOP
POSITION
#1

STOP
POSITION
#5

REAR SHELF
LOCKING
BRACKET

STOP
BRACKET

SCREW, THRL,
10-32 TRS
.500 XRCS

SHELF MOUNTING
BRACKET (LEFT
REAR POSITION)
MOUNTING
STUD
(4 PLACES)
NUT,
M5 KEP
(4 PLACES)

INNER
FLANGE

CXO-4073A-MC

Installing StorageWorks Shelves 7–13

7.7 Vertical Shelf Installation
There are two types of vertical shelf bracket installations: those using shelf
brackets with screw-mounts, and those using shelf brackets with tab-mounts.
When installing shelf brackets in the vertical position the shelf brackets used are
determined by the horizontal cabinet bracket that was factory installed.

7.7.1 Horizontal Cabinet Bracket Types
There are two types of horizontal cabinet brackets: a set of two narrow brackets
or a one piece bracket:
•

Type 1: A two-piece bracket, one attached to the front vertical cabinet rails
and the other attached to the interior vertical rails (see Figure 7–6). The rear
bracket has two holes with captive floating nuts. Type 1 horizontal cabinet
brackets accept only screw-mounted shelf brackets. To install tab-mounted
shelf brackets in a cabinet with type 1 horizontal cabinet brackets, see
Section 7.7.2 for cabinet configuration differences and Section 7.7.3 for cabinet
modification procedures.

•

Type 2: A one-piece bracket that attaches to the vertical cabinet rails and has
four holes at the rear where the shelf bracket’s mounting tabs are inserted
(see Figure 7–7). The type 2 horizontal cabinet bracket accepts either the
screw-mounted or tab-mounted brackets.

Figure 7–6 A Two-Piece Horizontal Cabinet Bracket

CABINET
INTERIOR

FRONT VERTICAL
CABINET RAILS

TWO-PIECE
HORIZONTAL
CABINET
BRACKET
CXO-4288A-MC

7–14 Installing StorageWorks Shelves

Figure 7–7 A One-Piece Horizontal Cabinet Bracket

CABINET
INTERIOR

FRONT VERTICAL
CABINET RAILS

ONE-PIECE
HORIZONTAL
CABINET
BRACKET
CXO-4289A-MC

7.7.2 Determining Cabinet Configurations
To determine the configuration of your cabinet’s vertical slot, look at the
horizontal cabinet bracket in the vertical slots of the cabinet. Is the horizontal
cabinet bracket a type 1 two-piece bracket, or a type 2 one-piece bracket? Use
Table 7–7 as a guide to properly determine your vertical shelf brackets.
Table 7–7 Determining Cabinet Configurations
If the horizontal cabinet
bracket is a ...

And you are installing a ...

Then go to ...

Type 1 two-piece

Screw-mounted bracket kit

Section 7.7.4

Type 1 two-piece

Tab-mounted bracket kit

Section 7.7.3

Type 2 one-piece

Tab-mounted bracket kit

Section 7.7.5

Type 2 one-piece

Screw-mounted bracket kit

Section 7.7.4

7.7.3 Cabinet Modification
This procedure applies to cabinets with the type 1 two-piece horizontal cabinet
bracket, and it only applies when installing a tab-mounted vertical shelf bracket.
This procedure instructs you to remove a horizontal shelf and shelf brackets and
to exchange the new tab-mounted bracket kit for the horizontal, screw-mounted
brackets.
1. Turn the cabinet power off as described in Section 7.4.
2. Select a horizontal shelf to remove.
3. Disconnect the signal and power cables from the horizontal shelf.
4. Remove the locking brackets from the horizontal shelf.
Installing StorageWorks Shelves 7–15

5. Remove the horizontal shelf.
6. Remove the horizontal, screw-mounted shelf brackets from the cabinet.
7. Remove the two U-nuts from each of the vertical cabinet rails.
8. Refer to Section 7.6.2 and install the tab-mounted shelf brackets in the
horizontal position.
9. Install the shelf in the horizontal position.
10. Install the locking brackets on the horizontal shelf.
11. Connect the signal and power cables.
12. See Section 7.7.4 and install the screw-mounted shelf brackets in the vertical
position.

7.7.4 Installing Vertical Shelves with Screw Mounts
Shelf bracket installations for front and rear vertical shelves using screw mount
brackets are shown in Figures 7–8 and 7–9. Using the illustrations as a guide,
install the vertical shelf brackets as follows:
WARNING
Cabinet rail edges can be sharp and can slice or abrade skin or cable
insulation.

5. Fasten the shelf bracket to the inner horizontal cabinet bracket with two
screws and 10–32 retaining nuts if required.

7–16 Installing StorageWorks Shelves

6. Using Table 7–8, determine the correct stop bracket position for the shelf type
being installed.
Table 7–8 Vertical Shelf Stop Bracket Positions
StorageWorks
Shelf Type

Front Shelf
Stop Bracket Position

Rear Shelf
Stop Bracket Position

BA350–Sx

BA350–Mx

7. Insert the tab on the stop bracket into the slot at the correct stop position on
the shelf bracket. Fasten the stop bracket to the shelf bracket.
8. Repeat steps 2 through 7 to mount the companion shelf bracket on the
opposite cabinet rail.
9. With the power supply end of the shelf at the top and the blowers facing
the cabinet, slide the shelf into the shelf brackets until it contacts the stop
brackets. The shelf should slide smoothly into the shelf brackets. If it
binds, remove it and check the alignment of the shelf brackets. The bracket
mounting screws might need to be loosened slightly to allow the brackets
to align with the shelf. Tighten the screws when the brackets are properly
aligned.
10. Using Table 7–9, verify that you have the correct locking bracket part number
for the shelf type and position (front or rear) being installed.
Table 7–9 Vertical Shelf Locking Bracket Part Numbers
StorageWorks
Shelf Type

Front Shelf Locking
Bracket Part No.

Rear Shelf Locking
Bracket Part No.

BA350–Sx

74–46441–01

74–46439–01

BA350–Mx

74–46441–02

74–46439–02

11. Once the shelf is positioned within the shelf brackets, install the locking
brackets with screws. Push each locking bracket against the shelf to seat it
before tightening the screws.

Installing StorageWorks Shelves 7–17

Figure 7–8 Front Vertical Shelf Bracket Installation

STOP
POSITIONS
#1 - 5

STOP
BRACKET

CABINET
INTERIOR
FRONT
SHELF
LOCKING
BRACKET
SHELF MOUNTING
BRACKET (LOWER
POSITION)

SCREW, THRL 10-32
TRS .500 XRCS
(7 PLACES)
FRONT VERTICAL
CABINET RAILS

HORIZONTAL
CABINET
BRACKET
CXO-3775A-MC

7–18 Installing StorageWorks Shelves

Figure 7–9 Rear Vertical Shelf Bracket Installation

STOP
POSITIONS
#5 - #1

STOP
BRACKET

CABINET
INTERIOR

REAR
SHELF
LOCKING
BRACKET

SHELF MOUNTING
BRACKET (LOWER
POSITION)

HORIZONTAL
CABINET
BRACKET

SCREW, THRL 10-32
TRS .500 XRCS
(7 PLACES)
REAR VERTICAL
CABINET RAILS

CXO-3776A-MC

Installing StorageWorks Shelves 7–19

7.7.5 Installing Vertical Shelves With Tab Mounts
Shelf bracket installations for front and rear vertical shelves using tab mount
brackets are shown in Figures 7–10 and 7–11. Using the illustrations as a guide,
install the vertical shelf brackets as follows:
WARNING
Cabinet rail edges can be sharp and can slice or abrade skin or cable
insulation.

1. Turn the cabinet power off as described in Section 7.4.
2. Determine the correct vertical shelf location for the shelf bracket. Refer to
Chapter 5 or 6 for this information.
3. Position the shelf bracket at the correct mounting holes just behind the outer
flange of the horizontal cabinet bracket.
4. Align the bracket mounting studs and mounting tabs with the appropriate
holes in the horizontal cabinet bracket and seat the studs and tabs in the
holes.
5. Fasten the bracket to the horizontal cabinet bracket by installing KEP nuts
on the left-most and right-most bracket mounting studs. Do not install nuts
on the two middle studs at this time.
6. Using Table 7–10, determine the correct stop bracket position for the shelf
type being installed.
Table 7–10 Vertical Shelf Stop Bracket Positions
StorageWorks
Shelf Type

Front Shelf
Stop Bracket Position

Rear Shelf
Stop Bracket Position

BA350–Sx

BA350–Mx

7. Insert the tab on the stop bracket into the slot at the correct stop position on
the shelf bracket. Fasten the stop bracket to the shelf bracket.
8. Repeat steps 2 through 7 to mount the companion shelf bracket on the
horizontal cabinet bracket above the one just installed.
9. With the power supply end of the shelf at the top and the blowers facing
the cabinet, slide the shelf into the shelf brackets until it contacts the stop
brackets. The shelf should slide smoothly into the shelf brackets. If it
binds, remove it and check the alignment of the shelf brackets. The bracket
mounting nuts might need to be loosened slightly to allow the brackets to
align with the shelf. Tighten the nuts when the brackets are properly aligned.
7–20 Installing StorageWorks Shelves

10. Using Table 7–11, verify that you have the correct locking bracket part
number for the shelf type and position (front or rear) being installed.
Table 7–11 Vertical Shelf Locking Bracket Part Numbers
StorageWorks
Shelf Type

Front Shelf Locking
Bracket Part No.

Rear Shelf Locking
Bracket Part No.

BA350–Sx

74–46441–01

74–46439–01

BA350–Mx

74–46441–02

74–46439–02

11. Once the shelf is positioned within the shelf brackets, install the locking
brackets with KEP nuts on the two middle mounting studs. Push each
locking bracket against the shelf to seat it before tightening the nuts.

Installing StorageWorks Shelves 7–21

Figure 7–10 Front Vertical Shelf Bracket Installation

SHELF MOUNTING
BRACKET (LOWER
POSITION)

SCREW, THRL 10-32
TRS .500 XRCS

STOP
BRACKET

MOUNTING
STUD
(4 PLACES)

STOP
POSITION
#5
STOP
POSITION
#4

CABINET
INTERIOR

STOP
STOP
POSITION
POSITION
#3
STOP
#1
POSITION
#2

FRONT
SHELF
LOCKING
BRACKET

MOUNTING
TAB
(4 PLACES)

NUT,
M5 KEP
(4 PLACES)
FRONT VERTICAL
CABINET RAILS

HORIZONTAL
CABINET
BRACKET
CXO-4075A-MC

7–22 Installing StorageWorks Shelves

Figure 7–11 Rear Vertical Shelf Bracket Installation

SCREW, THRL 10-32
TRS .500 XRCS

SHELF MOUNTING
BRACKET (LOWER
POSITION)

STOP
BRACKET

MOUNTING
STUD
(4 PLACES)

STOP
POSITION
#5
CABINET
INTERIOR

STOP
POSITION
#4
STOP
STOP
POSITION
POSITION
#3
#1
STOP
POSITION
#2

REAR
SHELF
LOCKING
BRACKET

MOUNTING
TAB
(4 PLACES)

HORIZONTAL
CABINET
BRACKET

NUT,
M5 KEP
(4 PLACES)
REAR VERTICAL
CABINET RAILS
CXO-4076A-MC

7.8 Filler Panel Installation
Filler panels are attached to the cabinet with four screws and U-nuts. Install a
filler panel in an unused shelf location as follows:
1. Place the filler panel against the cabinet rails in the shelf position to be
covered.
2. Use the panel as a template to mark the U-nuts locations on the cabinet rails.
3. Remove the filler panel from the cabinet rails.
4. Install four 10–32 U-nuts on the cabinet rails in the locations marked in
step 2.
5. Mount the filler panel to the cabinet rails using four 10–32 screws.

Installing StorageWorks Shelves 7–23

7.9 Installing Exterior Cabinet Panels
Once the cabinet rack space is configured as desired, the exterior cabinet panels
can be installed. Refer to Figure 7–1 and install the exterior cabinet panels as
follows:
1. Position a side panel against the cabinet with the lip above the upper hanger
clips just over the upper edge of the side of the cabinet.
2. Make sure that the entire surface of the side panel rests firmly against the
side of the cabinet.
3. Allow the panel to slide downward, catching the three hanger clips as it
moves.
4. Install the side panel bolts into the side panel through the holes in the top
side rails of the cabinet.
5. Repeat steps 1 through 4 to install the other side panel.
6. Locate the four inset nylon snap fasteners on the top cabinet rails.
WARNING
The top cover is heavy and awkward to lift. Installing it requires two
people. Failure to use sufficient personnel can result in personnel injury
or equipment damage.

7. Position the top cover over the cabinet. Position the cover as shown in
Figure 7–1 such that the end of the panel with the shorter overhang is
oriented toward the front of the cabinet.
8. Align the pins on the underside of the top cover with the inset nylon fasteners
on the top cabinet rails.
WARNING
Be careful not to catch your fingers between the cabinet and the top panel
when snapping the panel to the cabinet.

9. Lower the cover onto the cabinet and press it down, making sure that the
pins snap into the top panel fasteners.
10. If the cabinet was moved to access the side panels, place it in its original
position.

7–24 Installing StorageWorks Shelves

8
Installing TZ8x7-Series Tape Drives
This chapter describes the mounting and power cabling of TZ8x7-series tape
drives in SW800-series data center cabinets.

8.1 General Installation Considerations
The TZ8x7-series tape drive is mounted in the SW800 data center cabinet with
one chassis rail, as shown in Figure 8–1. The chassis rail is attached to the
cabinet’s internal vertical rails, and it supports the TZ8x7-series tape drive from
one side. Grooves machined into the side of the tape drive enclosure mate with
flanges along the sides of the chassis rail, allowing the tape drive to be slid onto
the chassis rail from the front of the cabinet. Once installed, the tape drive
enclosure extends from the front to the rear of the SW800 data center cabinet.
Two TZ8x7-series tape drives can be mounted side-by-side at a given vertical
position in the cabinet. The chassis rail hardware is the same for both the
left and right mounting positions. Only the orientation of the hardware differs
between the two mounting positions. There is no mechanical connection between
two tape drives mounted side-by-side in the cabinet.
In situations where only one TZ8x7-series tape drive is being installed at a given
vertical position in the cabinet, the tape drive must be installed in the right
mounting position. This will ensure that the front panel of the tape drive mates
with the correct opening in the tape bezel in the cabinet door. A filler panel in
the door covers the left mounting position in this case.
WARNING
While working in the cabinet interior, ac power must be removed from
cabinet components. Failure to do so may result in personal injury as a
result of electric shock.

Prior to performing any of the procedures in this chapter, remove ac power from
cabinet components. If the cabinet is installed and operating, spin down all disk
drives and halt all tape drives in the cabinet. Switch the circuit breaker on the
front panel of the cabinet’s CDU(s) to the
(OFF) position.

Installing TZ8x7-Series Tape Drives 8–1

Figure 8–1 TZ8x7-Series Tape Drive Installation

CABINET
CHASSIS
RAIL
TAPE
BEZEL

TZ8x7-SERIES
TAPE DRIVE
(LEFT POSITION)

TZ8x7-SERIES
TAPE DRIVE
(RIGHT POSITION)
CXO-3922A-MC

8.2 Accessing the Cabinet Rack Space
TZ8x7-series tape drives can normally be installed without removing cabinet side
panels. To route the cabling in configurations where access to the interior of the
cabinet is limited, however, cabinet side panels may need to be removed. Sections
and 8.8 present procedures for removing and replacing exterior cabinet panels.
The front and rear cabinet doors are held closed by door locks mounted on each
door. The locks are released by turning counterclockwise with a 5/32-inch hex
wrench.

8–2 Installing TZ8x7-Series Tape Drives

Removing the Cabinet Side Panels
As shown in Figure 8–2, there are three side panel hanger clips on each side
of the cabinet. A matching set of hanger clips are attached to each side panel.
Remove the side panels as follows:
Figure 8–2 Cabinet Side Panel Removal and Installation

FASTENER
PIN
(4 PLACES)
NYLON SNAP
FASTENER
(4 PLACES)

TOP COVER

M6x40mm BOLT
(4 PLACES)

LIP

SIDE PANEL
HANGER
CLIPS
UPPER
SIDE PANEL
HANGER
CLIP

LOWER
SIDE PANEL
HANGER
CLIPS

CABINET
FRONT
SIDE PANEL

CXO-3787A-MC

Installing TZ8x7-Series Tape Drives 8–3

1. Move the cabinet away from adjacent enclosures as necessary.
2. Loosen the top cover by pushing up on its front and rear edges until it snaps
free of its fasteners.
WARNING
The top cover is heavy and awkward to lift. Removing it is a twoperson task. Failure to use sufficient personnel may result in injury
or equipment damage.

3. Using two persons, lift the top cover from the cabinet and set it aside.
4. Remove the bolts attaching the side panels to the top side rails of the cabinet.
5. Grasp a panel along its front and rear edges and lift up until the hanger clips
disengage. Lift the panel away from the cabinet.
6. Repeat the previous step to remove the other panel.

8.3 Chassis Rail Installation
As shown in Figure 8–3, one end of the tape drive chassis rail is extendable using
a sliding rail bracket, to allow the length of the chassis rail to be adjusted to fit
the cabinet. Two round standoffs are used to locate the chassis rail along the
vertical cabinet rails. The round standoffs are inserted into front and rear chassis
rail locating holes to position the chassis rail while it is fastened to the cabinet.
Chassis rail component assembly and installation procedures for both left and
right tape drive mounting positions are presented in Sections 8.3.1, 8.3.2, and
8.3.3.
Note
Two small ESD grounding posts are provided with the cabinet. One is
located on a front vertical cabinet rail, and one on a rear rail. Should an
ESD grounding post interfere with the installation of the chassis rail,
move the post out of the way to any free hole on the cabinet.

8.3.1 Chassis Rail Assembly
Before the chassis rail components can be mounted in the cabinet, they must be
assembled. Assemble the chassis rail components as follows (see Figure 8–3):
1. Position the rail bracket against the chassis rail, as shown in the illustration.
2. Fasten the rail bracket to the chassis rail with the unbeveled nut bar and four
screws, as shown. Leave the screws loose enough to allow the rail bracket to
be moved along the chassis rail.
3. Install a U-nut in the groove near the end of each of the beveled nut bars.
The flat side of the U-nuts must be installed on the beveled side of the nut
bar.

8–4 Installing TZ8x7-Series Tape Drives

Figure 8–3 Chassis Rail Assembly

ROUND
STANDOFF

U-NUT, 10-32
(2 PLACES)

NUT BAR,
UNBEVELED

CHASSIS
RAIL
SCREW, 10-32
FH
(4 PLACES)

ROUND
STANDOFF
NUT BAR,
BEVELED
(2 PLACES)

RAIL
BRACKET
CXO-3934A-MC

4. Install the beveled nut bars on the chassis rail and rail bracket, using the
round standoffs to hold them in place. The beveled side of the nut bars must
face the flanges on the chassis rail and rail bracket.
The chassis rail assembly is now ready to be installed in the cabinet.

8.3.2 Right Position Chassis Rail Assembly Installation
Install the chassis rail assembly in the right position within the cabinet as follows
(see Figure 8–4):
WARNING
Cabinet rail edges may be sharp and can slice or abrade skin or cable
insulation.

1. Turn the cabinet power off as described in Section 8.1.

Installing TZ8x7-Series Tape Drives 8–5

2. Determine the correct tape drive mounting locations and corresponding
cabinet rail mounting holes for the chassis rail assembly. See Chapter 5 or 6
for this information. The tape mounting hole specified for each position is the
chassis rail locating hole shown in Figure 8–4.
Figure 8–4 Right Position Chassis Rail Installation

REAR VERTICAL
CABINET RAIL
REAR
CHASSIS
RAIL
LOCATING
HOLE
INNER
FLANGE

INNER
FLANGE

ROUND
STANDOFF
(2 PLACES)

FRONT VERTICAL
CABINET RAIL
OUTER
FLANGE

U-NUT, 10-32
(4 PLACES)

U-NUT, 10-32
(2 PLACES)

FRONT
CHASSIS
RAIL
LOCATING
HOLE
UP

SCREW, 10-32
SEMS
(4 PLACES)

CHASSIS
RAIL ASSEMBLY
RAIL
BRACKET

WASHER, LOCK
10-32, INTERNAL
(6 PLACES)
SCREW, 10-32
HEX CAP
(6 PLACES)
CXO-3924A-MC

WARNING
Use care in supporting the chassis rail assembly. It is heavy and awkward
to position within the cabinet. If possible, use two persons to support and
position the chassis rail assembly. The chassis rail assembly may cause
personal injury and equipment damage if dropped during installation.

8–6 Installing TZ8x7-Series Tape Drives

Note
To ensure proper alignment of the chassis rail assembly, use care to
position the round standoffs in the correct front and rear chassis rail
locating holes.

3. From the front of the cabinet, position the chassis rail assembly at the correct
mounting holes, as shown. Ensure that the rail bracket is positioned toward
the front of the cabinet, and that the arrow on the rail bracket points up.
4. Insert the rear round standoff into the rear chassis rail locating hole.
5. Support the chassis rail against the rear vertical cabinet rail and maintain
the rear round standoff in its locating hole. Extend the rail bracket to insert
the front round standoff into its correct front chassis rail locating hole.
6. Using the shelf bracket as a template, mark the four U-nut mounting holes
on the inner flanges of both the front and rear vertical cabinet rails. Make
sure to use the correct set of holes in the chassis rail.
7. Temporarily remove the chassis rail assembly and install four U-nuts along
the inner flanges of the front and rear vertical cabinet rails at the holes
marked in step 6.
8. Reposition the chassis rail assembly as directed in steps 3 through 5.
9. Fasten the chassis rail to the inner flanges of the front and rear vertical
cabinet rails with four screws, as shown.
10. Fasten the rail bracket to the front vertical cabinet rail with its beveled nut
bar and three screws, as shown.
11. Fasten the chassis rail to the rear vertical cabinet rail with its beveled nut
bar and three screws, as shown.
12. Tighten the screws fastening the rail bracket to the chassis rail.
13. Install two U-nuts along the outer flange of the front vertical cabinet rail.
Install one U-nut at the hole just above the front chassis rail locating hole
and the other at the eighth hole below the locating hole.

8.3.3 Left Position Chassis Rail Assembly Installation
Note
Install the chassis rail assembly in the left mounting position only if
a tape drive is also installed in the right position. The front cabinet
door tape bezel openings are designed to allow a single tape drive to be
installed only in the right position.

Install the chassis rail assembly in the left position within the cabinet as follows
(see Figure 8–5):

Installing TZ8x7-Series Tape Drives 8–7

Figure 8–5 Left Position Chassis Rail Assembly Installation

REAR VERTICAL
CABINET RAIL

INNER
FLANGE

FRONT VERTICAL
CABINET RAIL

OUTER
FLANGE

INNER
FLANGE

U-NUT, 10-32
(2 PLACES)

REAR
CHASSIS
RAIL
LOCATING
HOLE

ROUND
STANDOFF
(2 PLACES)

U-NUT, 10-32
(4 PLACES)

FRONT
CHASSIS
RAIL
LOCATING
HOLE

RAIL
BRACKET
WASHER, LOCK
10-32, INTERNAL
(6 PLACES)

CHASSIS
RAIL ASSEMBLY

SCREW, 10-32
SEMS
(4 PLACES)

SCREW, 10-32
HEX CAP
(6 PLACES)

CXO-3923A-MC

WARNING
Cabinet rail edges may be sharp and can slice or abrade skin or cable
insulation.

1. Turn the cabinet power off as described in Section 8.1.
2. Determine the correct tape drive mounting locations and corresponding
cabinet rail mounting holes for the chassis rail assembly. See Chapter 5 or 6
for this information. The tape mounting hole specified for each position is the
chassis rail locating hole shown in Figure 8–5.
WARNING
Use care in supporting the chassis rail assembly. It is heavy and awkward
to position within the cabinet. If possible, use two persons to support and
position the chassis rail assembly. The chassis rail assembly may cause
personal injury and equipment damage if dropped during installation.

8–8 Installing TZ8x7-Series Tape Drives

Note
To ensure proper alignment of the chassis rail assembly, use care to
position the round standoffs in the correct front and rear chassis rail
locating holes.

3. From the rear of the cabinet, position the chassis rail assembly at the correct
mounting holes, as shown. Ensure that the rail bracket is positioned toward
the rear of the cabinet, and that the arrow on the rail bracket points up.
4. Insert the front round standoff into the front chassis rail locating hole.
5. Support the chassis rail assembly against the front vertical cabinet rail and
maintain the front round standoff in its locating hole. Extend the rail bracket
to insert the rear round standoff into its correct rear chassis rail locating hole.
6. Using the chassis rail as a template, mark the four U-nut mounting holes on
the inner flanges of both the front and rear vertical cabinet rails. Make sure
to use the correct set of holes in the chassis rail.
7. Temporarily remove the chassis rail assembly and install four U-nuts along
the inner flanges of the front and rear vertical cabinet rails at the holes
marked in step 6.
8. Reposition the chassis rail assembly as directed in steps 3 through 5.
9. Fasten the chassis rail assembly to the inner flanges of the front and rear
vertical cabinet rails with four screws, as shown.
10. Fasten the rail bracket to the rear vertical cabinet rail with its beveled nut
bar and three screws, as shown.
11. Fasten the chassis rail to the front vertical cabinet rail with its beveled nut
bar and three screws, as shown.
12. Tighten the screws fastening the rail bracket to the chassis rail.
13. Install two U-nuts along the outer flange of the front vertical cabinet rail.
Install one U-nut at the hole just above the front chassis rail locating hole
and the other at the eighth hole below the locating hole.

Installing TZ8x7-Series Tape Drives 8–9

8.4 Mounting the TZ8x7-Series Tape Drive Enclosure
Once the chassis rail is installed in the cabinet, the tape drive enclosure can be
mounted on it. Mount the TZ8x7-series tape drive to the chassis rail as follows:
Note
The lock down brackets are mirror images of each other, and they are
identified as the -01 and -02 versions. They must be installed with the
orientation shown in the illustration.

1. Install the the two lock down brackets on the side of the tape drive enclosure
near the front end, as shown in either Figure 8–6 or 8–7. Figure 8–6 shows
the installation for the right mounting position, and Figure 8–7 shows the
installation for the left mounting position.
WARNING
Use two persons to lift the TZ8x7-series tape drive. The unit is heavy
and awkward to lift. Failure to use two persons to lift the tape drive may
result in injury or damage to equipment.

2. From the front of the cabinet and using two persons, position the tape drive
such that the machined grooves in the side of the tape drive enclosure mate
with the upper and lower edges of the chassis rail.
CAUTION
Use care when sliding the tape drive into the cabinet. Do not allow the
tape drive enclosure to pull or pinch cables that may be routed through
the cabinet interior. Failure to use care when mounting the tape drive
may result in equipment damage.

3. Slide the tape drive onto the chassis rail until the lockdown brackets contact
the U-nuts on the front vertical cabinet rail.
4. Fasten the lock down brackets to the front vertical chassis rail with two hex
cap screws, as shown in Figure 8–6 or 8–7.
Note
Preconfigured cabinets containing TZ8x7 tape drives are sent from the
factory with red shipping brackets installed on the rear of the tape drives
for stability. The shipping brackets may be left in place or removed at
the user’s discretion. The brackets are not needed, nor are they supplied,
with tape drives ordered to be installed on site.

8–10 Installing TZ8x7-Series Tape Drives

Figure 8–6 Right Position Tape Drive Mounting

SCREW, 10-32
HEX CAP
(4 PLACES)

WASHER, 10-32
LOCK
(2 PLACES)
WASHER, 10-32
FLAT
(2 PLACES)

FRONT VERTICAL
CHASSIS RAIL
LOCK DOWN
BRACKET
(-02)

U-NUT, 10-32
(2 PLACES)
(REF)

TAPE DRIVE
ENCLOSURE
(FRONT)

LOCK DOWN
BRACKET
(-01)
WASHER, 10-32
LOCK
(4 PLACES)

SCREW, 10-32
HEX CAP
(4 PLACES)

NOTE: TAPE DRIVE INTERNAL COMPONENTS NOT SHOWN FOR CLARITY.
CXO-3918A-MC

8.5 Supplying AC Power
AC power for the TZ8x7-series tape drive is obtained from CDU A. One of the
cabinet’s preinstalled shelf power cords is used to supply power to the tape drive.
To use one of the preinstalled cabinet power cords, simply locate an unused
cord next to the tape drive’s rear-panel power receptacle and plug it into the
receptacle. Switch the power switch on the rear panel of the tape drive to the
(ON) position to allow the CDU to control the tape drive’s power.

Installing TZ8x7-Series Tape Drives 8–11

Figure 8–7 Left Position Tape Drive Mounting

FRONT VERTICAL
CABINET RAIL

LOCK DOWN
BRACKET
(-01)

WASHER, 10-32
FLAT
WASHER, 10-32
(2 PLACES)
LOCK
(2 PLACES)

SCREW, 10-32
HEX CAP
(2 PLACES)

U-NUT, 10-32
(2 PLACES)
(REF)

TAPE DRIVE
ENCLOSURE
(FRONT)

LOCK DOWN
BRACKET
(-02)
SCREW, 10-32
HEX CAP
(4 PLACES)

WASHER, 10-32
LOCK
(4 PLACES)

NOTE: TAPE DRIVE INTERNAL COMPONENTS NOT SHOWN FOR CLARITY.
CXO-3919A-MC

8.6 SCSI–2 Signal Cabling
Refer to the StorageWorks Solutions TZ8x7-Series Tape Drive SCSI Bus
Configuration and Installation Guide for details on the selection of SCSI–2
cables and their connection to the TZ8x7-series tape drive.

8.7 Installing the Cabinet Door Tape Bezel Kit
To allow operator access to the TZ8x7 tape drive, the front cabinet door tape
bezel kit must be installed. To install the tape bezel kit, see the Instructions for
Installation of the Tape Bezel Kit on SF400 Series Cabinets provided with the
kit. These SF400 installation instructions also apply to SW800-series data center
cabinets.

8–12 Installing TZ8x7-Series Tape Drives

Figure 8–8 TZ8x7-Series Tape Drive Rear Panel

SCSI-2
CONNECTORS

AC POWER
SWITCH

AC RECEPTACLE

CXO-3932A-MC

If the tape bezel kit is already installed, you need only remove its filler panel to
accommodate a tape drive in the left mounting position.

8.8 Reinstalling Exterior Cabinet Panels
Once the cabinet rack space is configured as desired, the exterior cabinet panels
may be reinstalled. Refer to Figure 8–2 and reinstall the exterior cabinet panels
as follows:
1. Position a side panel against the cabinet with the lip above the upper hanger
clips just over the upper edge of the side of the cabinet.
2. Ensure that the entire surface of the side panel rests firmly against the side
of the cabinet.
3. Allow the panel to slide downward, catching the three hanger clips as it
moves.
4. Install the side panel bolts into the side panel through the holes in the top
side rails of the cabinet.
Installing TZ8x7-Series Tape Drives 8–13

5. Repeat steps 1 through 4 to install the other side panel.
6. Locate the four inset nylon snap fasteners on the top cabinet rails.
WARNING
The top cover is heavy and awkward to lift. Installing it is a twoperson task. Failure to use sufficient personnel may result in injury or
equipment damage.

7. Position the top cover over the cabinet. Position the cover as shown in
Figure 8–2 such that the end of the panel with the shorter overhang is
oriented toward the front of the cabinet.
8. Align the pins on the underside of the top cover with the inset nylon fasteners
on the top cabinet rails.
WARNING
Be careful not to catch your fingers between the cabinet and the top panel
when snapping the panel to the cabinet.

9. Lower the cover onto the cabinet and press it down, ensuring that the pins
snap into the top panel fasteners.
10. If the cabinet was moved to access the side panels, place it in its original
position.

8–14 Installing TZ8x7-Series Tape Drives

9
Power Configuration
This chapter presents the procedures necessary to configure the primary power
within SW800-series data center cabinets. Descriptions of the cabinet’s power
configuration options can be found in Section 2.3.

9.1 General Considerations
WARNING
While working in the cabinet interior, ac power must be removed from
cabinet components. Failure to do so may result in personal injury as a
result of electric shock.

Prior to performing any of the procedures in this chapter, remove ac power from
cabinet components. If the cabinet is installed and operating, spin down all disk
drives and halt all tape drives in the cabinet. Switch the circuit breaker on the
(OFF) position.
front panel of the cabinet’s CDU(s) to the

9.2 Single CDU Configurations
Using one CDU, cabinet power can be configured with both single and dual power
supplies in each shelf. Refer to Sections 2.3.1 and 2.3.2 for further information on
these configurations. The CDU in single-CDU configurations, CDU A, is installed
in the position shown in Figure 9–1.

Power Configuration 9–1

CABINET FRONT

CDU A

CDU B

Figure 9–1 CDU Locations

CABINET REAR
CXO-4109A-MC

9.2.1 Single-Cabinet Power Configuration
Unless options are specified, SW800-series data center cabinets are shipped
with a single CDU and are cabled for single shelf power supplies. The cabinet
is supplied with 24 preinstalled, black ac power cables. One of these cables is
routed to each front and rear shelf position. These cables are used to supply ac
power to shelves as they are added to the cabinet. The cables need only to be
plugged into each shelf ’s power supply to complete the shelf ’s installation. No
additional cables are necessary for this configuration.

9.2.2 Dual-Shelf Power Configuration
In the dual-shelf power configuration, a second ac power cable and ac power
supply are necessary for each shelf. (Refer to Figure 2–5.) Configure each shelf
for dual ac power supplies as follows:
1. Power the cabinet down as described in Section 9.1.
2. Plug in a second ac power supply (B) next to the existing ac power supply (A)
in each shelf.
3. For cabinets with 12 or fewer shelves, ac power cables preinstalled at unused
shelf positions may be used to supply power to the newly-added ac power
supplies. For each newly-installed shelf, locate a preinstalled, black power
cable of the proper length at an unused shelf position and remove it from any
cable clamps holding it to the cabinet.
For cabinets with more than 12 shelves, a second CDU is needed to provide
dual shelf power throughout the cabinet. A complete set of ac power cables of
the proper lengths is supplied with the additional CDU.
The ac power cables for each shelf location must be of a minimum length to
9–2 Power Configuration

reach the cabinet’s CDU(s) along assigned routing paths. Refer to the chapter
pertaining to your cabinet configuration for information on ac power cable
lengths for various shelf locations.
4. Once the cables are selected, plug the appropriate end of each ac power
cable into a connector on the rear panel of the CDU. Choose the upper-most
available connector and work down. If necessary, loosen the bracket locking
screw and rotate the CDU safety bracket to the side to facilitate installing the
cables, as shown in Figure 9–2. After the ac power cables are installed, make
sure to rotate the safety bracket back into position over the cable connectors,
and to tighten the bracket locking screw.
Figure 9–2 Safety Bracket Rotation
CDU SAFETY
BRACKET
(OPERATING
POSITION)

ROTATE FOR
POWER CORD
INSTALLATION

BRACKET
LOCKING
SCREW

CABINET
INTERIOR

POWER
CORDS

REAR OF
CDU
CXO-4108A-MC

5. Route an ac power cable to the second dc power supply (B) in each shelf. Use
the existing power cable routing and cable clamps or ties. Plug the cable
connector into the front of the power supply.
6. Using the procedures appropriate to your system, turn on the cabinet and
initialize it.

Power Configuration 9–3

9.3 Dual-Cabinet Power Configuration
The dual-cabinet power configuration requires two CDUs for power distribution.
The CDUs are installed in the positions shown in Figure 9–1. The following
procedure describes how to install the dual-power option kit.
1. Check the contents of the dual-power option kit against the appropriate parts
list shown in Tables 9–1 and 9–2 to verify that it is complete.
Table 9–1 SW800-Series Data Center Cabinet 60 Hz Dual-Power Option Kit Parts
List
Kit option number SW8xP–AA (120/208V, 60 Hz)
Kit part number 70–30101–05
Digital Part Number

Description

Quantity

EK–SWCDU–IS

CDU installation guide

70–30101–01

Cable distribution unit, 60 Hz

90–00063–39

Screw, 10–32 Phillips, .500 inch

90–07786–00

U-nut, 10–32

90–07032–00

Tie-wrap

17–03718–03

Cable, ac power, gray, 5 feet

17–03718–05

Cable, ac power, gray, 7 feet

17–03718–07

Cable, ac power, gray, 9 feet

36–38274–01

Label, CDU ID/Caution

90–08264–00

Cable tie, adhesive-backed

90–07093–00

Cable clamp

12–21368–02

Screw, SEMS, 10–32 pan, .625 inch

Table 9–2 SW800-Series Data Center Cabinet 50 Hz Dual-Power Option Kit Parts
List
Kit option number SW8xP–AB (380-415V, 50 Hz)
Kit part number 70–30101–06
Digital Part Number

Description

Quantity

EK–SWCDU–IS

CDU installation guide

70–30101–02

Cable distribution unit, 50 Hz

90–00063–39

Screw, 10–32 Phillips, .500 inch

90–07786–00

U-nut, 10–32

90–07032–00

Tie-wrap

17–03718–03

Cable, ac power, gray, 5 feet

17–03718–05

Cable, ac power, gray, 7 feet

17–03718–07

Cable, ac power, gray, 9 feet

36–38274–01

Label, CDU ID/Caution

90–08264–00

Cable tie, adhesive-backed

13
(continued on next page)

9–4 Power Configuration

Table 9–2 (Cont.) SW800-Series Data Center Cabinet 50 Hz Dual-Power Option
Kit Parts List
Kit option number SW8xP–AB (380-415V, 50 Hz)
Kit part number 70–30101–06
Digital Part Number

Description

Quantity

90–07093–00

Cable clamp

12–21368–02

Screw, SEMS, 10–32 pan, .625 inch

2. See Figure 9–1 to familiarize yourself with the location and identification of
each of the CDUs to be configured for the dual-power option.
3. Spin down all disk drives and halt all tape drives in the cabinet.
4. Open the rear cabinet door to expose CDU A.
5. Switch the circuit breaker on the front panel of the CDU to the
position.

(OFF)

6. Disconnect the CDU’s primary power cable from the power source.
7. Isolate the cabinet electrically by powering down the host computer.
Note
In some cases, it may be desirable to allow the host computer system
to operate while the dual-power option kit is being installed. In this
instance, the cabinet may be isolated from power by disconnecting the
host computer interface cable(s). Refer to the documentation for the host
computer configuration for the steps necessary to disconnect the cables.

8. To install CDU B, you must have free access to the interior area of the front
and rear CDU mounting slots. If necessary, gain access to the cabinet interior
by separating the cabinet from adjacent ones and removing its side See
Chapter 7 for details on cabinet hardware.
WARNING
Cabinet rail edges may be sharp and can slice or abrade skin and cable
insulation.

9. Remove the new CDU (to be installed as CDU B) from its packing material.
Thread the primary power cable through the cabinet as shown in Figures 9–3
and 9–4.
10. Using the hardware provided in the kit, mount CDU B to the cabinet chassis
rails as shown in Figure 9–3.

Power Configuration 9–5

Figure 9–3 CDU B Installation

U-NUT
(4 PLACES)

CDU B
PRIMARY
POWER
CABLE

SEMS
SCREWS
(4 PLACES)

CDU B
CXO-3778C-MC

Note
To prevent confusion resulting from the fact that the cabinet uses two
power cables with the dual-power option, it is important that safety labels
be properly applied. Install the cable and cabinet labeling carefully in
accordance with the instructions in steps 11 through 15.

11. Remove one of the yellow ‘‘A’’ labels in the kit from its backing paper and
place it on the lower inside panel of the rear cabinet door as shown in
Figure 9–5.
12. Remove another of the yellow ‘‘A’’ labels in the kit from its backing paper and
wrap it around the plug end of the primary power cable of CDU A as shown
in Figure 9–4.
13. Remove one of the yellow ‘‘B’’ labels in the kit from its backing paper and
place it on the lower inside panel of the front cabinet door as shown in
Figure 9–5.

9–6 Power Configuration

Figure 9–4 Power Cable Routing

CDU B
PRIMARY
POWER
CABLE

CDU A

CDU A LABEL
CDU B LABEL
A

CXO-3818B-MC

14. Remove another of the yellow ‘‘B’’ labels in the kit from its backing paper and
wrap it around the plug end of the primary power cable of CDU B as shown
in Figure 9–3.
15. Remove the two yellow ‘‘CAUTION’’ labels from their backing papers and
place them at eye level on the inside of each door as shown in Figure 9–5.
16. Make sure that the second dc power supply required for the dual-power
option is installed in each shelf.
17. A complete set of gray ac power cables of various lengths is supplied in the
kit. The ac power cables for each shelf location must be of a minimum length
to reach CDU B. Refer to Chapter 5 or 6 to determine the correct cable length
for each shelf.

Power Configuration 9–7

Figure 9–5 Safety Label Locations

CAUTION
LABEL

A
A
A

B
B
B

CDU B
LABEL

CDU B

CABINET FRONT

CDU A

CDU A
LABEL

CABINET REAR
CXO-3777C-MC

18. Loosen the safety bracket locking screw on CDU B and rotate its safety
bracket away from the cables to be connected to it, as shown in Figure 9–2.
19. Plug the gray cable of the appropriate length into the second dc power supply
in each shelf and route the cable to CDU B. (The second dc power supply is
the right one for horizontal shelves, and the lower one for vertical shelves.)
Route each added cable to CDU B along the same path as the shelf ’s existing
black ac power cable. Attach the added cable to the cabinet rails using the
existing cable clamps where possible. Use the additional cable ties, cable
clamps, and mounting hardware provided in the kit where needed.
20. Connect the gray power cable(s) to the connector(s) on the rear panel of CDU
B, starting at the top-most connector and working down.
21. Locate the cabinet fan power cords plugged into CDU A. One is labelled "A"
and one "B", each with large, yellow labels. Unplug the cord labeled "B".
Loosen the safety bracket on CDU A and rotate it out of the way to facilitate
unplugging the cord as necessary. Make sure to return the safety bracket to
the operating postion if you move it.

9–8 Power Configuration

22. Plug the fan power cord labeled "B" into a free outlet on the rear panel of
CDU B.
23. Rotate the safety bracket back into position over the rear panel of CDU B and
tighten the bracket locking screw.
24. If the cabinet’s host computer interface cable(s) was disconnected in step 7,
reconnect the cable(s).
25. Replace the cabinet side panels and reposition the cabinet next to the
adjacent ones as appropriate.
26. Reconnect the primary power cable from CDU A to its source.
27. Connect the primary power cable from CDU B to the auxiliary power source.
28. Switch the circuit breakers on both CDUs to the (ON) position.

29. Close and secure the cabinet doors.
30. Restart all disk and tape drives and check them for proper function.

Power Configuration 9–9

StorageWorks Glossary
ac distribution
The method of distributing ac power in a cabinet.
ac power supply
A power supply designed to produce dc power from an ac input.
adapter
A device that converts the protocol and hardware interface of one bus type
into that of another without changing the functionality of the bus. See signal
converter.
American National Standards Institute
See ANSI.
ANSI
American National Standards Institute. An organization that develops and
publishes electronic and mechanical standards.
array controller
A hardware/software device that facilitates communications between a host and
one or more devices organized in an array. HS-family controllers are examples of
array controllers.
BA350–Mx controller shelf
The StorageWorks controller shelf used for HS-family controller modules, cache
modules, and shelf power units.
BA350–Sx SBB shelf
A StorageWorks shelf used for only power units and SBBs.
bad block
A disk drive data block containing a physical defect.
bad block replacement
See BBR.
battery backup unit
See BBU.
BBR
Bad block replacement. The substitution of defect-free disk blocks for those found
to have defects.

Glossary–1

BBU
Battery backup unit. Extends power availability after the loss of primary ac
power or a power supply to protect against the corruption or loss of data.
block
A stream of data transferred as a unit. (Used interchangeably with the term
sector for disk drives.)
blower
An airflow device mounted in a StorageWorks shelf.
cable distribution unit
See CDU.
carrier
A standard, StorageWorks shelf-compatible, plastic shell into which a device can
be installed. Sometimes called SBB carrier.
CDU
Cable distribution unit. The power entry device for StorageWorks cabinets. The
unit provides the connections necessary to distribute ac power to cabinet shelves
and fans.
channel
The RAID Array 110 subsystem term for a SCSI bus.
CI bus
Computer Interconnect bus. Uses two serial paths, each with a transfer rate of
70 Mb/s (8.75 MB/s).
CLI
Command line interpreter. Operator command line interface for the HS-family
controller firmware.
cold swap
A method of device replacement that requires that power be removed from all
shelves in a cabinet. This method is used when conditions preclude the use of the
warm swap or hot swap methods.
command line interpreter
See CLI.
controller
A hardware/software device that facilitates communications between a host
and one or more devices. A controller translates bus protocols and hardware
interfaces and adds functionality to the host/device communications.
controller shelf
A StorageWorks shelf designed to contain controller and cache memory modules.
DAT
Digital Audio Tape. A format for recording digital data on a cartridge tape.

Glossary–2

data center cabinet
A generic reference to the large cabinets, such as the SW800 series, in which
StorageWorks components can be mounted.
deskside expansion unit
A pedestal enclosure designed to house one or two StorageWorks shelves in a
vertical position.
Diagnostics and Utilities Protocol
See DUP.
digital audio tape
See DAT.
DIGITAL Storage Architecture
See DSA.
DIGITAL Storage System Interconnect
See DSSI.
DILX
Disk inline exerciser. Diagnostic firmware used to test the data transfer
capabilities of disk drives in a way that simulates a high level of user activity.
Disk Inline Exerciser
See DILX.
DSA
DIGITAL Stoage Architecture. A set of specifications and interfaces describing
standards for designing mass storage products. DSA defines the functions
performed by host computers, controllers, and drives. It also specifies how they
interact to accomplish mass storage management.
DSSI
Digital Storage System Interconnect. A Digital-specific data bus with an 8-bit
data transfer rate of 4 to 5 MB/s.
dual cabinet power configuration
A cabinet ac power configuration in which two ac sources and two ac power
supplies are used to provide redundant dc power to each of the cabinet’s SBB
shelves.
dual shelf power configuration
A cabinet ac power configuration in which one ac source and two ac power
supplies are used to provide redundant dc power to each of the cabinet’s SBB
shelves.
dual universal asynchronous receiver transmitter
See DUART.

Glossary–3

dual-redundant configuration
A controller configuration consisting of a primary and backup controller in one
controller shelf . If the primary controller fails, the backup controller assumes
control over the failing controller’s devices.
DUART
Dual Universal Asynchronous Receiver Transmitter. An integrated circuit
containing two serial, asynchronous transceiver circuits.
DUP
Diagnostic and Utility Protocol. Host application software that allows a host
operator terminal to connect to the controller’s command line interpreter. See
also virtual terminal.
ECC
Error correction code. One or more cyclic redundancy check (CRC) words
that allow detection of a mismatch between transmitted and received data
in a communications system, or between stored and retrieved data in a
storage system. The ECC allows for location and correction of an error in the
received/retrieved data. All ECCs have limited correction power.
EDC
Error detection code. One or more checksum words that allow detection of a
mismatch between transmitted and received data in a communications system,
or between stored and retrieved data in a storage system. The EDC has no data
correction capability.
electromagnetic interference
See EMI.
electrostatic discharge
See ESD.
EMI
Electromagnetic interference. The impairment of a signal by an electromagnetic
disturbance.
error correction code
See ECC.
error detection code
See EDC.
ESD
Electrostatic discharge. The discharge of a potentially harmful static electric
voltage as a result of improper grounding.
failover
Failover is the process that takes place when one controller in a dual-redundant
configuration fails, and the other controller takes over the direction of the storage
subsystem. The other controller continues to direct the storage subsystem until
the failed controller becomes operational or is replaced.

Glossary–4

fan
An airflow device mounted in a StorageWorks cabinet.
fast, differential SCSI
See FD SCSI.
fast, wide, differential SCSI
See FWD SCSI.
FD SCSI
Fast, differential SCSI. The differential SCSI bus with an 8-bit data transfer rate
of 10 MB/s.
See also FWD SCSI and SCSI.
field replaceable unit
See FRU.
filler panel
A sheet metal or plastic panel used to cover unused mounting areas in
StorageWorks cabinets and shelves.
FRU
field replaceable unit. A hardware component that can be replaced in the field.
full-height device
A single device that occupies an entire 5.25 inch SBB carrier. StorageWorks
full-height devices have an order number suffix of ‘‘–VA.’’
FWD SCSI
Fast, wide, differential SCSI. The differential SCSI bus with a 16-bit data
transfer rate of up to 20 MB/s.
See also FD SCSI and SCSI.
half-height device
A device that occupies half of a 5.25 inch SBB carrier. Two half-height devices
can be mounted in a 5.25 inch SBB carrier. The first half-height device is
normally mounted in the lower part of the carrier. The second device is normally
mounted in the upper part of the carrier.
HBVS
Host-Based Volume Shadowing. Also known as Phase 2 Volume Shadowing.
Hierarchical Storage Controller
See HSC.
Hierarchical Storage Operating Firmware
See HSOF.
HIS
Host Interconnect Services. The firmware that communicates with the host in
HS-family controllers.

Glossary–5

host
The primary or controlling computer to which a storage subsystem is attached.
Host Interconnect Services
See HIS.
Host-Based Volume Shadowing
See HBVS.
hot swap
A method of device replacement whereby the complete system remains on line
and active during device removal and reinstallation. The device being removed or
reinstalled is the only device that cannot perform operations during this process.
HSC
Hierarchical Storage Controller. An intelligent mass storage server used on the
CI bus. Capable of supporting a total of eight disk and/or tape data channels,
the HSC is part of the System Interconnect Architecture and Digital Storage
Architecture. By performing as an I/O manager, the HSC can be classified as an
I/O server, removing the burden of I/O management from the CPU.
HSOF
Hierarchical Storage Operating Firmware. HS-family controller firmware is
contained on a removable ROM card.
KILL line
The controller-to-controller disable signal used in a dual-redundant configuration.
least recently used
See LRU.
logical units
A group of devices addressable as a virtual unit.
LRU
Least recently used. The block replacement algorithm for the read cache.
maintenance terminal
The operator terminal used to identify an HS-family controller, to enable its
host paths, to define its subsystem configuration, and to check its status. The
HS-family maintenance terminal interface is designed to accept any terminal
conforming to EIA–423. The maintenance terminal is only required to configure a
storage subsystem and is not required for normal operations.
nonredundant
A configuration in which there is no backup hardware in place for the hardware
that is present.
nonvolatile
See NV.

Glossary–6

NV
Nonvolatile. A term used to describe memory, the contents of which survive loss
of power.
OCP
Operator control panel. The control/indicator panel associated with a device. The
OCP is usually mounted on the device and is accessible to the operator.
operator control panel
See OCP.
port
The hardware and software used to connect a host controller to a communication
bus, such as a CI, SCSI, or SDI bus.
qualified device
A device that has been fully tested in all appropriate StorageWorks hardware
and software configurations, and is in complete compliance with Digital and
country-specific standards,for example, FCC and TÜV.
quiesce
To make a bus inactive or dormant. The operator must quiesce SCSI bus
operations, for example, during a device warm swap.
radio frequency interference
See RFI.
RAID
Redundant array of independent disks. A set of storage techniques devised to
increase the performance and availability of a storage subsystem.
read cache
A block of high-speed memory used by a controller to buffer data being read from
storage devices by a host. A read cache increases the controller’s effective device
access speed by satisfying host read requests from its local cache memory when
possible, instead of from external storage devices. The controller maintains in the
cache copies of data recently requested by the host, and may fetch blocks of data
ahead in anticipation that the controller will access the next sequential blocks. In
a normal read cache, host write requests are handled as usual, without involving
the caching mechanism. See also write through cache.
Redundant Array of Independent Disks
See RAID.
RFI
Radio frequency interference. The impairment of a signal by an unwanted radio
signal or radio disturbance.
SBB
StorageWorks building block. A device housed in a standard StorageWorks
SBB carrier. An SBB has a standard physical and electrical interface that is
compatible with those of StorageWorks shelves and enclosures.

Glossary–7

SBB shelf
StorageWorks building block shelf. A StorageWorks shelf, such as the BA350–Sx,
designed to house plug-in SBB modules.
SCS
System Communication Services. A delivery protocol for packets of information
(commands or data) to or from the host.
SCSI
Small Computer System Interface. An ANSI interface defining the physical and
electrical parameters of a parallel I/O bus used to connect hosts to a maximum
of seven devices. The StorageWorks device interface is implemented according to
the SCSI–2 standard, allowing the synchronous transfer of 8-bit data at rates of
up to 10 MB/s.
shelf brackets
Sheet metal components designed to attach and position StorageWorks shelves in
their associated enclosures.
signal converter
A device that converts the protocol and hardware interface of one bus type into
that of another without changing the functionality of the bus. See adapter.
single cabinet power configuration
A cabinet ac power configuration in which only one ac source and one ac power
supply is used to supply dc power to the cabinet’s SBB shelves.
skirt
A trim panel designed to mount around the base of the cabinet.
Small Computer System Interface
See SCSI.
storage sets
A grouping of disk drives that make up a new distinct container.
StorageWorks
Digital’s family of modular data storage products that allows customers to
design and configure their own storage subsystems. Components include power,
packaging, cabling, devices, controllers, and software. Customers can integrate
devices and array controllers in StorageWorks enclosures to form storage
subsystems.
StorageWorks building block
See SBB.
stripesets
In a RAID configuration, a virtual disk drive with its physical data spread across
multiple physical disks. Stripeset configurations do not include a data recovery
mechanism.

Glossary–8

supported device
A device tested as functionally compatible with an approved StorageWorks
hardware and software configuration.
System Communications Services
See SCS.
Tape Inline Exerciser
See TILX.
TILX
Tape Inline Exerciser. Diagnostic firmware used to test the data transfer
capabilities of tape drives in a way that simulates a high level of user activity.
VAXcluster System Console
See VCS.
VCS
VAXcluster System Console. This terminal allows access to hosts (by networks).
Another method of accessing the controller. See also DUP.
virtual terminal
A software path from an operator terminal on the host to the controller’s CLI
interface. The path can be established via the host port on the controller (using
DUP) or via the maintenance port through an intermediary host (VCS). A virtual
terminal is also sometimes called a host console.
warm swap
A controller function that allows devices to be added, removed, or replaced while
the subsystem remains operational. All activity on the device’s SCSI bus must
normally be halted for the duration of the warm swap operation.
write through cache
A technique for handling host write requests in read caches. When the host
requests a write operation, the cache writes data directly to the external storage
device and updates the cache memory to ensure that the memory does not
contain obsolete data. This technique increases the chances that future host
read requests can be filled from the cache. The host sees the write operation as
complete only after the external storage device has been updated. See also read
cache.
write-back cache
A cache configuration that increases the performance of host write requests.
When the host requests a write operation, the cache writes the host’s data first to
the cache memory, completing the host’s request quickly. It performs the slower
operation of flushing the data to the external storage device at a later time. The
host sees the write operation as complete when the data has reached the cache.

Glossary–9

Index
A

Accessing cabinet rack space, 7–4

Description of SW800 data center cabinet, 2–1

Brackets
horizontal cabinet, 7–2
screw-mounted shelf, 7–2
tab-mounted shelf, 7–2

C
Cabinet
cooling, 2–10
inspecting, 4–9
leveling, 4–6, 4–8
placement of, 4–7
powering, 4–10
ramp unloading procedures, 4–4
site preparation, 3–1
unloading, 4–4
unpacking, 4–1
Cabinet access, 7–4
Cabinet components, 2–4
cabinet, 2–4
CDUs, 2–4
controller shelves, 2–4
SBB shelves, 2–4
SBBs, 2–4
shelf brackets, 2–4
TZ8x7-series tape drives, 2–6
Cabinet configurations
horizontal cabinet brackets, 7–14
modifications, 7–15
vertical slot, 7–15
Cabinet preparation and shutdown, 7–4
Chassis rails, tape drive
installing tape drive chassis rails, 8–4
Cooling cabinet, 2–10

Environmental stabilization, 4–1
ESD grounding posts, 7–6, 7–10, 7–16, 7–20
Exterior panels
installing, 7–24
reinstalling, 8–13
removing, 7–4

F
Filler panels
installation, 7–23

G
Grounding equipment, 3–2
Grounding posts, 7–6, 7–10, 7–16, 7–20

H
Horizontal cabinet brackets, 7–2, 7–14
type 1 two-piece, 7–2, 7–14
type 2 one-piece, 7–2, 7–14
Horizontal shelf
installation, 7–6
How to use this manual, 1–1

I
Inspection
of cabinet installation, 4–9
of ramps, 4–4
of shipped equipment, 4–1
Installing
base trim kit, 4–8
exterior cabinet panels, 7–24
filler panels, 7–23
horizontal shelves, 7–6
StorageWorks shelves, 7–1
TZ8x7-series tape drives, 8–1
vertical shelves, 7–14

Index–1

L
Leveling cabinet, 4–8

O
Overview, 2–1

P
Placement of cabinet, 4–7
Power cable lengths
in SW800 controller/storage cabinets, 6–3
in SW800 storage-only cabinets, 5–5
Power configuration
of SW800 controller/storage cabinets, 6–3
of SW800 storage-only cabinets, 5–5
Power configurations, 2–7, 9–1
dual shelf power configuration, 9–2
dual-cabinet power configuration, 2–9, 9–4
dual-shelf power configuration, 2–8
single-cabinet power configuration, 2–7, 9–2
Power system survey, 3–3
Powering up cabinet, 4–10

R
Ramps
inspection, 4–4
unloading, 4–4
Removal cabinet from pallet, 4–4
Removing
exterior cabinet panels, 7–4
top cover, 7–4

S
Screw-mounted shelf brackets, 7–2
SCSI–2 cable lengths
in SW800 controller/storage cabinets, 6–7
Shelf bracket kits
description, 7–1
parts list, 7–2
screw-mounted, 7–1
screw-mounted configurations, 7–3
tab-mounted, 7–1
tab-mounted configurations, 7–3
Shelf bracket types, 7–1
Shelf locations
in SW800 controller/storage cabinets, 6–2
in SW800 storage-only cabinets, 5–2
Shelves, StorageWorks
installation of, 7–1
installing horizontal, 7–6
installing vertical, 7–14

Index–2

Shutdown of devices and power, 7–4
Side panels
installing, 7–24
reinstalling, 8–13
removal, 8–2
removing, 7–4, 8–3
Signal cable routing
in SW800 controller/storage cabinets, 6–6
in SW800 storage-only cabinets, 5–6
Site preparation, 3–1
Specifications
environmental stabilization, 4–1
SW800 data center cabinet, 2–1
Stabilization thermal, 4–1
SW800 controller/storage cabinets
configuration of, 6–1
power cable lengths in, 6–3
power configuration of, 6–3
SCSI–2 cable lengths in, 6–7
shelf locations in, 6–2
signal cable routing in, 6–6
TZ8x7-series tape drive locations in, 6–2
SW800 storage-only cabinets
configuration of, 5–1
power cable lengths in, 5–5
power configuration of, 5–5
shelf locations in, 5–2
signal cable routing in, 5–6
TZ8x7-series tape drive locations in, 5–3

T
Tab-mounted shelf brackets, 7–2
Thermal stabilization, 4–2
Top cover
installing, 7–24
removing, 7–4
Trim kit installing, 4–8
TZ8x7-series tape drives
installation of, 8–1
locations in SW800 controller/storage cabinets,
6–2
locations in SW800 storage-only cabinets, 5–3

U
Unloading cabinet, 4–4
Unpacking cabinet, 4–1

V
Vertical shelf
installation, 7–14