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EK-356MA-IG-A01

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Document:	StorageWorks SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide
Order Number:	EK-356MA-IG
Revision:	A01
Pages:	62
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DIGITAL StorageWorks
SCSI Controller Shelf
Upgrade/Add-On Kits
Installation Guide
Part Number: EK–356MA–IG. A01
January 1998

This publication describes the DS–BA356–MD Series
array controller shelf installation procedures. The first
portion of this publication addresses shelf upgrade kit
procedures and the last portion addresses shelf add-on kit
procedures.

Digital Equipment Corporation
Maynard, Massachusetts

January 1998
Digital Equipment Corporation makes no representations that the use of its
products in the manner described in this publication will not infringe upon
existing or future patent rights, nor do the descriptions contained in this
publication imply the granting of licenses to make, use, or sell equipment or
software in accordance with the description.
Possession, use, or copying of the software described in this publication is
authorized only pursuant to a valid written license from DIGITAL or an
authorized sublicensor.
© Digital Equipment Corporation 1998. All rights reserved.

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 pursuant to Part 15 of the FCC rules, which are
designed to provide reasonable protection against such radio frequency
interference. Operation of this equipment in a residential area may cause
interference, in which case, the user, at his own expense, will be required to
take whatever measures may be required to correct the interference.
Any changes or modifications made to this equipment may void the users’s
authority to operate this equipment.
This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
•

Reorient or relocate the receiving antenna.

•

Increase the separation between the equipment and receiver.

•

Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.

•

Consult the dealer or an experienced radio/TV technician for help.

DIGITAL, StorageWorks, and the DIGITAL logo are trademarks of Digital
Equipment Corporation.

Table of Contents
Preface
Intended Audience........................................................................................................................ ix
Structure ....................................................................................................................................... ix
Chapter 1—Introduction ................................................................................................ix
Chapter 2—Removing a Controller Shelf .....................................................................ix
Chapter 3—Installing a Replacement Shelf ...................................................................ix
Chapter 4—Installing an Add-On Controller Shelf .......................................................ix
Documentation Conventions ......................................................................................................... x
Related Documents ...................................................................................................................... xi

1 Introduction
Required Tools and Equipment................................................................................................. 1-1
Inventory List ............................................................................................................................ 1-2
Controller Shelf Orientation...................................................................................................... 1-5
Unpacking the Box.................................................................................................................... 1-6

2 Removing a Controller Shelf
Replacement Check List............................................................................................................ 2-1
New Shelf Orientation............................................................................................................... 2-2
Identifying Shelf Components .................................................................................................. 2-2
Preliminary Procedure............................................................................................................... 2-4
Power Supplies.......................................................................................................................... 2-4

iii

Table of Contents (Continued)
Removing the Power Supplies................................................................................................... 2-5
Removing the I/O Cable Panel and Cables................................................................................ 2-6
Removing the Shelf ................................................................................................................... 2-8

3 Installing a Replacement Shelf
Installing the Shelf ..................................................................................................................... 3-2
Installing the I/O Cables ............................................................................................................ 3-4
Installing the Cache and Controllers.......................................................................................... 3-6
Horizontal Mount Orientation ............................................................................................ 3-7
Front Vertical Mount Orientation....................................................................................... 3-7
Rear Vertical Mount Orientation........................................................................................ 3-7
Completing the Installation........................................................................................................ 3-8

4 Installing an Add-On Controller Shelf
Preliminary Check List .............................................................................................................. 4-1
Installing a Screw-Mounted Bracket (Vertical Mount Only) .................................................... 4-4
Installing a Shelf Using Tab-Mounted Brackets ....................................................................... 4-9
Installing the I/O Cables .......................................................................................................... 4-15
Installing the Cache and Controllers........................................................................................ 4-16
Horizontal Mount Orientation .......................................................................................... 4-17
Front Vertical Mount Orientation..................................................................................... 4-17
Rear Vertical Mount Orientation...................................................................................... 4-17
Completing the Installation...................................................................................................... 4-18

List of Figures
Figure 1-1 Controller Shelf Orientations ...........................................................................................1-5
Figure 2-1 Typical Shelf Components ..............................................................................................2-3
Figure 2-2 Shelf Components ............................................................................................................2-5
Figure 2-3 I/O Cable Panel Removal ................................................................................................2-6
Figure 2-4 I/O Cable Numbering ......................................................................................................2-7
Figure 2-5 Removal of Front Shelf Locking Brackets ......................................................................2-8
Figure 2-6 Shelf Removal .................................................................................................................2-9
Figure 2-7 Top and Bottom Front-Mounted Shelf Stop Bracket Positions .....................................2-10
Figure 2-8 Rear-Mounted Shelf Stop Bracket Position ...................................................................2-11
Figure 3-1 Inserting the Shelf in the Cabinet ....................................................................................3-2
Figure 3-2 Front Shelf Locking Brackets ..........................................................................................3-3
Figure 3-3 Rear Shelf Locking Brackets ...........................................................................................3-3
Figure 3-4 Installing the Top and Bottom Shelf Locking Brackets ..................................................3-3
Figure 3-5 I/O Cable Installation .......................................................................................................3-5
Figure 3-6 Controller Shelf Orientations ...........................................................................................3-6
Figure 3-7 Completed DS–BA356–MD Shelf Configuration ...........................................................3-9
Figure 4-1 Two-Piece Horizontal Cabinet Bracket ...........................................................................4-2
Figure 4-2 One-Piece Horizontal Cabinet Bracket ............................................................................4-3
Figure 4-3 Stop Brackets Showing Stop Positions 4 and 5 ...............................................................4-4
Figure 4-4 Screw-Mounted Bracket with Slot 4 ................................................................................4-5
Figure 4-5 Vertical Mount Orientations ............................................................................................4-6
Figure 4-6 Inserting a Shelf into a Cabinet .......................................................................................4-7
Figure 4-7 Front Locking Bracket .....................................................................................................4-7
Figure 4-8 Rear Locking Bracket ......................................................................................................4-7
Figure 4-9 Installing the Top and Bottom Shelf Locking Brackets ..................................................4-8
Figure 4-10 Stop Brackets Showing Stop Positions 4 and 5 .............................................................4-9
Figure 4-11 Vertical Mounting—Tab-Mounted Cabinet Bracket ...................................................4-10
Figure 4-12 Horizontal Mounting—Tab-Mounted Bracket with Slot 4 .........................................4-11

List of Figures (Continued)
Figure 4-13 Controller Shelf Mount Orientations .......................................................................... 4-12
Figure 4-14 Inserting a Shelf into a Cabinet ................................................................................... 4-13
Figure 4-15 Front Locking Bracket ................................................................................................ 4-13
Figure 4-16 Rear Locking Bracket ................................................................................................. 4-13
Figure 4-17 Installing the Top and Bottom Shelf Locking Brackets .............................................. 4-14
Figure 4-18 I/O Cable Installation .................................................................................................. 4-15
Figure 4-19 Controller Shelf Orientations ...................................................................................... 4-16
Figure 4-20 Completed DS–BA356–MD Shelf Configuration ...................................................... 4-19

List of Tables
Table 1-1 Tools & Equipment ..........................................................................................................1-1
Table 1-2 SCSI Controller Shelf Upgrade/Add-On Kits Components ...........................................1-2
Table 1-3 SCSI Controller Shelf Add-On Kit (DS–BA356–MD) Components ..............................1-2
Table 1-4 User Ordered SCSI Controller Shelf Components ..........................................................1-3
Table 1-5 BN21H Series Single-Ended 50-Conductor Cables .........................................................1-4

vii

Preface
The DIGITAL StorageWorks SCSI Controller Shelf Installation Guide
describes the replacement of an older model shelf and the installation of an
add-on controller shelf.

Intended Audience
This publication is for use by DIGITAL™ StorageWorks™ small computer
system interface (SCSI) controller shelf customers and employees who are
responsible for installing, replacing, and configuring controller shelves and
their components.

Structure
This manual is organized as follows:
Chapter 1—Introduction
Presents the critical issues that must be addressed: replacing shelves,
unpacking the shelves, the required tools, and general information.
Chapter 2—Removing a Controller Shelf
Describes the processes for removing an existing shelf and applies only to
upgrade kits.
Chapter 3—Installing a Replacement Shelf
Describes the procedures for installing a replacement shelf and applies only
to upgrade kits.
Chapter 4—Installing an Add-On Controller Shelf
Describes the steps required to install an add-on controller shelf.

Preface

Documentation Conventions
The documentation conventions used in this publication are shown in
Table 1.
Table 1 Documentation Conventions
boldface type

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

italic type

Italic type indicates emphasis and publication titles.

A/R

As required.
The light emitting diode (LED) is ON or blinking slowly.

The LED is OFF.

The LED is FLASHING (blinking rapidly).

Warning
The information is essential to the safety of personnel.

Caution
The information is essential in order to avoid damaging
the software or hardware.

Note

Notes contain information that might be of special interest
to the user.
Single-ended SCSI bus.

Differential SCSI bus.

Preface

Related Documents
Table 2 identifies publications that contain additional information relevant
to DS–BA356–MD SCSI controller shelves.
Table 2 Relevant Publications
Publication Title

Part Number

SCSI Controller Shelf Upgrade/Add-On Kits Check List

EK–356M1–RM

SCSI Controller Shelf Upgrade/Add-On Kits User’s
Guide

EK–356MA–UG

16-Bit SBB User’s Guide

EK–SBB16–UG

SBB Shelf I/O Module User’s Guide

EK–SBBIO–UG

SW500 and SW800 Cabinet Metric Shelf Bracket Kit
Installation Guide

EK–35XRD–IG

Using Your Controller in a BA356 Controller Shelf

EK–HSMXM1–CG

HSZ70 Array Controller HSOF CLI Reference Manual

EK–CLI70–RM

HSZ70 Array Controller Configuration Manual

EK–HSZ70–CG

HSZ70 Array Controller Service Manual

EK–HSZ70–SV

HSZ70 Family Array Controller Operating Software
(HSOF) Software Product Description

SPD 64.81.00

Array Controller HSZ70 Operating Software HSOF
Release Notes

EK–HSZ70–RN

Getting Started–HSZ70 Solutions Software
for ... platform

AA–R60xx–TE

Polycenter Console Manager

See the Getting Started
guide listed above for the
platform-specific order
number.

Getting Started with Command Console

AA–R0HJC–TE

The RAIDBOOK—A Source for RAID Technology

RAID Advisory Board

1
Introduction
This chapter contains information regarding the tools and materials required
to remove and install DIGITAL StorageWorks DS–BA356–MD controller
shelves. It also identifies controller shelf orientations and information
relevant to unpacking controller shelf shipping boxes.

Required Tools and Equipment
Table 1-1 identifies the tools and equipment required for removal and
installation of controller shelves.
Table 1-1 Tools & Equipment
Required Items
Diagonal cutters
Needle-nosed pliers
5/16-inch Nut driver
Straight-slot screwdriver
#2 Phillips screwdriver
Electrostatic Discharge (ESD) mat
ESD wrist strap
Knife or cutting tool

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 1-1

Introduction

Inventory List
Table 1-2 lists the controller shelf components required to install the
DS–SWXM1–AA or DS–SWXM1–BA as an upgrade or add-on kit. Table
1-3 lists the controller shelf components required to install the
DS–BA356–MD as an add-on kit. Table 1-4 lists user special order
components.
Table 1-2 SCSI Controller Shelf Upgrade/Add-On Kits
Components
DS–SWXM1
Model Number

Description
–AA

–BA

DS–BA356–MD

Controller shelf (see Table 1-3)

DS–HSZ70–AH

StorageWorks Input/Output
(I/O) Controller with:
64 MB cache memory
ECB cable installation kit

DS–HS35X–BC

Single ECB

DS–HS35X–BD

Dual ECB

Table 1-3 SCSI Controller Shelf Add-On Kit (DS–BA356–MD)
Components
Description

Qty

DS–BA356–MD controller shelf with:
150 W power supplies (BA35X–HF)
Blower assembly (BA35X–MQ)

1
2
2

50-conductor 2m (6.6 feet) cable (BN21H–02)

Cache module blank panel

Controller module blank panel

Metric shelf bracket, screw mounting (74–46442–01) and
Screws (10-32 x 0.625 inch)

2
12

1-2 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Introduction

Description

Qty
1
2
8
2
2
2
2

Metric shelf mounting kit (BA35X–RD) with:
Tab mounting bracket (74–47506–01)
Kep nuts
Locking bracket, front shelf (74–46441–02)
Locking bracket, rear shelf (74–46441–01)
Stop bracket (74–46439–01)
Stop bracket screws

Note
The components listed in Table 1-4 are only required for use
with the DS–BA356–MD SCSI controller shelf add-on kit.

Table 1-4 User Ordered SCSI Controller Shelf Components
Description

Qty

Model

DIGITAL array controller with
cache memory

A/R

Contact your account
representative

Single ECB

1 per
cache

DS–HS35X–BC

Dual ECB

1 per
2 caches

DS–HS35X–BD

ECB cable

1 per
cache

Contact your account
representative

Fast 10 SCSI cables

A/R

BN21H series

ECB shelf

A/R

DS–BA35X–BA

Operating system specific
platform kit

1 per
controller

Contact your account
representative

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 1-3

Introduction
Table 1-5 provides a description of the SCSI cable that might be included
in the shelf package purchased.
Table 1-5 BN21H Series Single-Ended 50-Conductor Cables
Length
Cable Description

50-conductor cable
with:
2 each, 50-pin,
high-density,
male, straight connector with thumb
latches

Order
Number

Meters

Feet

0.3

1.0

BN21H–0C

0.5

1.6

BN21H–0E

1.0

3.3

BN21H–01

1.5

4.9

BN21H–1E

2.0

6.6

BN21H–02

StorageWorks
CONNECTOR

1-4 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

CXO-4165A-MC_R

Introduction

Controller Shelf Orientation
There are various shelf orientations available:
•

Shelves can be mounted horizontally or vertically in the cabinets. The
current cabinet configuration determines the shelf orientation. When
replacing a BA350–M series shelf with a DS–BA356–M series shelf,
use the same orientation for the new shelf as for the previous shelf.

•

For a horizontal orientation, only tab-mounted brackets are used.

•

For a vertical orientation, either tab-mounted or screw-mounted
brackets may be used. The type is determined by the cabinet into
which the shelf is being mounted.

The three typical shelf-mounting orientations are: horizontal,
front-vertical, and rear-vertical. Figure 1-1 depicts each orientation.

Vertical Mount
(Typical Cabinet Front)

Cache module B

Horizontal Mount
(Front or Rear)

I/O module
Controller A
Controller B

CXO6239A

Power
supply

Controller B
Controller A
I/O module

Cache module B

Cache module A

Power
supply

Cache module A

I/O module
Controller A
Controller B

Cache module B

Power
supply

Figure 1-1 Controller Shelf Orientations

Power
supply
Power
supply
CXO6237A

CXO6238A

Vertical Mount
(Typical Cabinet Rear)

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 1-5

Introduction

Unpacking the Box
Complete the following procedure to remove the shelf from the box:
1.

Use an ESD-compliant work surface.
Warning
Two people are required to remove the shelf from the
box—one person holds the box while the other pulls out the
shelf.
Use proper lifting techniques when lifting the shelf. Failure to
do so might cause personal injury.

One person holds the box securely while the other person removes its
contents.

Grasp the shelf with both hands, bending at the knees as the shelf is
lifted out of the box.

When the shelf clears the box, place it on the ESD compliant work
surface.

Note
As the components are removed from the packaging, check
them against the inventory list.

Carefully unwrap the components, ensuring that they are all placed
entirely on the ESD-compliant work surface.

Remove the controller shelf from the ESD bag, placing the controller
shelf on top the bag.

Remove the bubble-wrapped mounting brackets and bag of screws,
the BA35X–RD box, and the cache and controller cards.

1-6 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Introduction
8.

Open the BA35X–RD box and check its contents against the parts list
in the SW500 and SW800 Cabinet Metric Shelf Bracket Kit
Installation Guide.

Note
If any parts are missing, contact your account representative.

After all parts, tools, and materials are accounted for:
•

If you are REPLACING a controller shelf with an upgrade
kit, then go to Chapter 2—Removing a Controller Shelf.

•

If you are INSTALLING an add-on controller shelf, then go
to Chapter 4—Installing an Add-On Controller Shelf.
10. If necessary, retain packaging for future use in packing old materials.
Caution
Do NOT attempt to install the controller shelf in the cabinet
without ensuring the cabinet and new shelf are properly
grounded. Ensure you wear an ESD wrist strap that is properly
grounded to the cabinet. Otherwise, damage to the controller
might occur due to an electrical static discharge.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 1-7

2
Removing a Controller Shelf
Chapter 2 applies only if you are installing a controller shelf
(DS–SWXM1–AA or DS–SWXM1–BA) as an upgrade kit. If installing as
an add-on kit, go to Chapter 4.
Chapter 2 covers the removal of your BA350–M controller shelf in
preparation for installing the DS–BA356–MD controller shelf as an upgrade
kit.

Replacement Check List
Caution
Before you begin to remove a controller shelf, refer to the SCSI
Controller Shelf Upgrade/Add-On Kits Check List document.
This document was initially placed on the outside of the
DS–BA356–MD shelf packing box and printed on bright yellow
paper stock. It is extremely important to follow this document in
the exact order as the information is presented. Otherwise, loss
of data and damage to might occur.
Do NOT continue with this chapter until all of the objectives
prior to the removal and installation steps on the SCSI
Controller Shelf Upgrade/Add-On Kits Check List are complete.

After removing, reading, and accomplishing all the tasks in the SCSI
Controller Shelf Upgrade/Add-On Kits Check List, proceed with the removal
of the controller shelf.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 2-1

Removing a Controller Shelf

New Shelf Orientation
Shelves can be mounted horizontally or vertically in the cabinets as shown
in Chapter 1, Figure 1-1. Your cabinet’s current configuration determines
the shelf orientation required for this upgrade kit installation.

Identifying Shelf Components
Figure 2-1 identifies all the pertinent components of a typical shelf
configuration:
(1)

Top and bottom front shelf locking brackets

(2)

Power supplies

(3)

Controller cache module A

(4)

Array controller module A

(5)

Controller cache module B

(6)

Array controller module B

(7)

Host port adapter cables

(8)

ECB cables

(9)

I/O cables

(10) I/O cable panel
(11) Power supply cords

2-2 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Removing a Controller Shelf
Figure 2-1 Typical Shelf Components
1

10
3
9

4
5
6

8
7

CXO6092A

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 2-3

Removing a Controller Shelf

Preliminary Procedure
Complete the following procedure before removing a controller shelf:
Warning
Do NOT slide hands along cabinet rail edges. The rails are very
sharp and might cause personal injury.

Caution
Proper ESD procedures must be followed:
•

Use an ESD work surface.

•

Wear a properly grounded ESD wrist strap.

•

Place all components on the ESD work surface as you
remove them from the packaging.

On the host system, dismount the subsystem disk drives connected to
the controllers being replaced.

Attach your ESD wrist strap to an unpainted surface on the cabinet,
such as a mounting rail.

Quiesce all the controller SCSI buses on the controllers being
replaced.

Remove power from the SBB shelves connected to the controller shelf
being replaced.

Power Supplies
Two power supplies are provided with each SCSI controller shelf upgrade
or add-on kit and should be used with the new controller shelf. However,
the power supplies from your BA350–M shelf may be used with the
DS–BA356–MD controller shelf, provided they are rated at least 150 W,
such as the BA35X–HF.
If desired, remove the power supplies from the controller shelf to provide
more working room and lighten the weight of the shelf for removal.

2-4 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Removing a Controller Shelf

Removing the Power Supplies
Removing the power supplies from the BA350–M shelf is a simple
process. Refer to Figure 2-2 as necessary while completing the following
procedure:
Figure 2-2 Shelf Components
1

10
3
4

5
6

8
7

CXO6092A

Disconnect the two power supply cords (11) from the power supplies.
All power supply and controller LEDs turn off and the blowers stop
operating.

Remove the power supplies (2) by pressing the squeeze tabs and
pulling on the power supplies until they are free of the shelf.

Reserve the power supplies for future use.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 2-5

Removing a Controller Shelf

Removing the I/O Cable Panel and Cables
Refer to Figure 2-2 while completing the following procedure for
removing the I/O cable panel (10) and cables. Label each cable as it is
removed.
1.

If ECBs are present, disconnect the ECB cables (8).

Disconnect the host port cable adapters (7).

Cut any cable ties that might interfere with the removal and
replacement of the shelf.

Remove the I/O cable panel, as shown in Figure 2-3, by unscrewing
the top and bottom screws located on the panel.

Figure 2-3 I/O Cable Panel Removal

1 2 3 4 5 6

CXO6093A

2-6 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Removing a Controller Shelf

Note
The Cache A and Controller A modules may be removed to
give easier access to the I/O cables.

Use tape to sequentially number the cables from top to bottom, as
shown in Figure 2-4.

Note
Sequential numbering is important because when the cables
are reconnected on the new shelf, they are connected to the
port but in reverse sequence.

Figure 2-4 I/O Cable Numbering

CXO6094A

Starting with the most accessible cable, disconnect each cable by
depressing the squeeze tabs on the ends of the cables.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 2-7

Removing a Controller Shelf

Removing the Shelf
Controller shelf components can be removed at this time to lighten the
weight of the controller shelf.
Complete the following procedure to remove a vertical shelf:
1.

Remove the top and bottom front shelf lock brackets as shown in
Figure 2-5. These brackets might be mounted with Kep nuts or
screws. Remove Kep nuts using a 5/16-inch nut driver; remove screws
with a #2 Phillips screwdriver.

Figure 2-5 Removal of Front Shelf Locking Brackets

1 2 3 4 5 6

CXO6095A

Save the Kep nuts or screws for the new shelf installation.

Grasp the controller shelf at the top and the bottom.

2-8 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Removing a Controller Shelf

Note
Before removing the shelf, note its orientation by referencing
the power supply position (top or bottom). When the new
shelf is installed, it will need to be inserted with the same
orientation in order for all the components to connect
correctly.

Remove the controller shelf by gently rocking the shelf from side to
side or up and down while pulling outward (see Figure 2-6).

Figure 2-6 Shelf Removal

CXO6096A

Put the original controller shelf in an ESD bag.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 2-9

Removing a Controller Shelf
6.

For front-mounted shelves: remove the stop brackets from the upper
and lower shelf mounting brackets, exposing only stop position 5 (see
Figure 2-7).

Figure 2-7 Top and Bottom Front-Mounted Shelf Stop Bracket
Positions

Stop
position 5

Upper shelf
mounting bracket

Stop
position 5

Lower shelf
mounting bracket

CXO6097A

2-10 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Removing a Controller Shelf
7.

For rear-mounted shelves: if necessary, install a rear stop bracket in
stop position #4 as shown in Figure 2-8.

Figure 2-8 Rear-Mounted Shelf Stop Bracket Position
Stop
position #4

Mounting
bracket

CXO6211A

You are now ready to install the new DS–BA356–MD controller shelf.
Go to Chapter 3.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 2-11

3
Installing a Replacement Shelf
Chapter 3 applies only if you are installing a controller shelf
(DS–SWXM1–AA or DS–SWXM1–BA) as an upgrade kit. If installing as
an add-on kit, go to Chapter 4.
This chapter covers the instructions for installing a DS–BA356–MD
controller shelf as an upgrade kit.
Warning
Do NOT slide hands along cabinet rail edges. The rails are very
sharp and might cause personal injury.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 3-1

Installing a Replacement Shelf

Installing the Shelf
Complete the following procedure to install a replacement shelf:
1.

Ensure that the power cords and data cables are clear of the controller
slot.

Note
Install the replacement shelf using the same orientation and
slot as the original shelf. The location of the power supplies in
the original shelf determines how the new shelf is inserted.
(See Chapter 1, Figure 1-1 for typical shelf mounting
orientations.)

Insert the shelf as shown in Figure 3-1, using a gentle rocking
motion—up and down, front and back.

Figure 3-1 Inserting the Shelf in the Cabinet

CXO6098A

3-2 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Installing a Replacement Shelf
3.

Ensure the shelf is firmly seated to the rear.

Using the shelf locking brackets provided, install them onto the shelf
mounting brackets using either Kep nuts for tab-mounted brackets or
screws for screw-mounted brackets. See Figure 3-2 and Figure 3-3 for
shelf locking bracket examples. Figure 3-4 illustrates the installation
of shelf locking brackets on a tab-mounted bracket.

Figure 3-2 Front Shelf Locking Brackets

CXO6214A

Figure 3-3 Rear Shelf Locking Brackets

CXO6212A

Figure 3-4 Installing the Top and Bottom Shelf Locking
Brackets

1 2 3 4 5 6

CXO6095A

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 3-3

Installing a Replacement Shelf

Installing the I/O Cables
Complete the following procedure to install the I/O cables:
Caution
To prevent damage to the controller or SBB, the I/O cables
must be connected to SBB shelf prior to power application.

Note
Ensure that access to the modules is not impeded in any way by
the cabling.
If the one meter cable (BN21H–01) is too short for connecting
the BA356 I/O module, replace it with the two meter cable
provided (BN21H–02).

Install the numbered I/O cables on the appropriate side of the shelf, as
shown in Figure 3-5. Connect them in reverse sequence, for example,
beginning with #6, then #5, #4, #3, #2, and #1.

3-4 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Installing a Replacement Shelf
Figure 3-5 I/O Cable Installation

1
2
3

CXO6100A

Ensure that the cables are firmly seated in the connectors.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 3-5

Installing a Replacement Shelf

Installing the Cache and Controllers
Use the appropriate shelf mounting orientation (see Figure 3-6) and its
accompanying procedure to install the cache and controllers as the
following describes:

Vertical Mount
(Typical Cabinet Front)

Cache module B

I/O module
Controller A
Controller B

CXO6239A

Horizontal Mount
(Front or Rear)

Power
supply

Controller B
Controller A
I/O module

Cache module B

Cache module A

Power
supply

Cache module A

I/O module
Controller A
Controller B

Cache module B

Power
supply

Figure 3-6 Controller Shelf Orientations

Power
supply
Power
supply
CXO6237A

CXO6238A

Vertical Mount
(Typical Cabinet Rear)

Note
It is easier to install both cache modules before installing the
controllers.
If there is only one cache, install a blank panel over the Cache
B slot.
If there is only one controller, install a blank panel over the
Controller B slot.

3-6 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Installing a Replacement Shelf

Horizontal Mount Orientation
Complete the following procedure using Figure 3-6 to install shelf
components:
1.

Install the cache A module in the bottom, left cache slot next to the
power supplies.

Install cache B or blank panel to the right of cache A.

Install controller A in the slot immediately below the I/O module.

Install controller B or blank panel immediately below controller A.

Front Vertical Mount Orientation
Complete the following procedure using Figure 3-6 to install shelf
components:
1.

Install the cache A module in the top, left cache slot under the power
supplies.

Install cache B or blank panel under cache A.

Install controller A or blank panel in the slot immediately to the left of
the I/O module.

Install controller B or blank panel immediately to the left of controller
A.

Rear Vertical Mount Orientation
Complete the following procedure using Figure 3-6 to install shelf
components:
1.

Install the cache A module in the bottom, right cache slot above the
power supplies.

Install cache B or blank panel immediately above cache A.

Install controller A in the slot immediately to the right of the I/O
module.

Install controller B or blank panel immediately to the right of
controller A.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 3-7

Installing a Replacement Shelf

Completing the Installation
Complete the following procedure to finish installing the DS–BA356–MD
controller shelf upgrade kit:
1.

Install and connect the ECB and cables using the SCSI Controller
Shelf Upgrade/Add-On Kits User’s Guide.

Install the host port cables using the appropriate array controller
documentation.
Caution
Connecting the first power cord in the next step applies power
to the shelf.

Connect the power supplies in both the SBB shelves and the
controller shelf: the black cord to the power supply next to the locking
bracket and the grey cord to the power supply next to the controller.
The green status LEDs on the power supplies turn on and the blowers
start operating.

Dress the cables with tie wraps, ensuring that the cables do not
interfere with the removal of any modules.

Figure 3-7 is an example of a completed DS–BA356–MD shelf
configuration that includes:
(1)

Top and bottom front shelf locking brackets

(2)

Power supplies

(3)

Array controller module A

(4)

Array controller module B

(5)

Host port adapter cables

(6)

ECB cables

(7)

Controller cache module A

(8)

Controller cache module B

(9)

Power supply cords

3-8 SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide

Installing a Replacement Shelf
Figure 3-7 Completed DS–BA356–MD Shelf Configuration
1

6
3
4
8

7
6

CXO6103A

Pack the old shelf components for disposition.

Setup and test the controller shelf using procedures in the appropriate
array controller configuration guide.

You are finished with installing the controller shelf. Return to the SCSI
Controller Shelf Upgrade/Add-On Kits Check List and continue.

SCSI Controller Shelf Upgrade/Add-On Kits Installation Guide 3-9

4
Installing an Add-On
Controller Shelf
Chapter 4 applies only if you are installing a controller shelf
(DS–SWXM1–AA, DS–SWXM1–BA, or DS–BA356–MD) as an add-on
kit. If installing the DS–SWXM1–AA or DS–SWXM1–BA as an upgrade
kit, go to Chapter 2.
Chapter 4 covers the installation of the DS–BA356–MD controller shelf and
its components as an add-on kit.

Preliminary Check List
Complete the following preliminary procedure for pertinent information
regarding your installation:
Warning
Do NOT slide hands along cabinet rail edges. The rails are very
sharp and might cause personal injury.

Consult your DIGITAL cabinet guide for supported configurations.

Determine the slot in which to put the shelf.

For all horizontal slots, use the tab-mounted brackets located within the
BA35X–RD box.

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-1

Installing an Add-On Controller Shelf
4.

If the cabinet has a two-piece horizontal cabinet bracket as shown in
Figure 4-1, screw-mounted brackets must be used. Go to the section
in this chapter for installing screw-mounted brackets.

Figure 4-1 Two-Piece Horizontal Cabinet Bracket

Vertical cabinet
rails

Two-piece horizontal
cabinet bracket
CXO4288B

4-2 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf
5.

If the cabinet has a one-piece cabinet bracket as shown in Figure 4-2,
tab-mounted brackets must be used. Go to the section for installing
tab-mounted brackets.

Figure 4-2 One-Piece Horizontal Cabinet Bracket

Vertical cabinet
rails

One-piece horizontal
cabinet bracket
CXO4289B

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-3

Installing an Add-On Controller Shelf

Installing a Screw-Mounted Bracket (Vertical Mount Only)
Complete the following procedure to install a vertical screw-mounted
bracket:
1.

Make sure the power cords and data cables are clear of the controller
slot.

Determine the correct stop bracket position for the shelf type being
installed.
•

For a front shelf installation, the stop bracket is part of the
mounting bracket and uses stop position 5.

•

For a rear shelf installation, secure a stop bracket to both
mounting brackets in stop position 4 with a screw (see
Figure 4-3).

Figure 4-3 Stop Brackets Showing Stop Positions 4 and 5
Stop
position
#4
Stop
position
#5

Stop
bracket

4-4 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf
3.

Install the mounting bracket:
•

Position the first mounting bracket at the correct mounting holes
just behind the outer flange of the horizontal cabinet rail (see
Figure 4-4).

Figure 4-4 Screw-Mounted Bracket with Slot 4
Screw
Stop
position #4

Stop
bracket
Stop
position #5

Shelf
mounting
bracket
Locking
bracket

Screw

Vertical cabinet
rails

Horizontal
cabinet
bracket
CXO6248A

•

Fasten the mounting bracket to the outer flange of the cabinet rail
with two screws, using the left-most and right-most holes (see
Figure 4-4).

•

Fasten the mounting bracket to the inner horizontal cabinet
bracket with two screws.

Repeat steps 2 and 3 for the other mounting bracket.

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-5

Installing an Add-On Controller Shelf

Note
Shelf orientation is determined by the shelf location (front or
rear).

Orient the shelf as determined by the location of the power cords
within the vertical mount slot opening as as show in Figure 4-5:

I/O module
Controller A
Controller B

Controller B
Controller A
I/O module

Cache module B

Cache module A

Power
supply

Cache module A

Power
supply

Cache module B

Figure 4-5 Vertical Mount Orientations

Power
supply
Power
supply
CXO6237A

Vertical Mount
(Typical Cabinet front)

4-6 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

CXO6238A

Vertical Mount
(Typical Cabinet Rear)

Installing an Add-On Controller Shelf
6.

Gently slide the shelf into the mounting brackets as shown in Figure
4-6 and fully seat it against the stop brackets.

Figure 4-6 Inserting a Shelf into a Cabinet

CXO6098A

Based upon the shelf location (front or rear), select the two
appropriate locking brackets for use:
•

For a front-mounted shelf, use locking bracket number
74–46441–02 (shown in Figure 4-7).

Figure 4-7 Front Locking Bracket

CXO6214A

•

For a rear-mounted shelf, use locking bracket number
74–46441–01 (shown in Figure 4-8).

Figure 4-8 Rear Locking Bracket

CXO6212A

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-7

Installing an Add-On Controller Shelf
8.

Position the appropriate locking bracket over the middle two holes
and finger tighten two screws to secure the bracket. Figure 4-9 shows
Kep nuts where the screws are located on screw-mounted brackets.

Figure 4-9 Installing the Top and Bottom Shelf Locking
Brackets

1 2 3 4 5 6

CXO6095A

Firmly push the locking bracket against the shelf to seat it.

10. Tighten the two screws.
11. Repeat steps 8 through 10 for the other locking bracket.

4-8 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf

Installing a Shelf Using Tab-Mounted Brackets
Complete the following procedure to install a shelf using tab-mounted
brackets:
1.

Ensure that the power cords and data cables are clear of the controller
slot.

Determine the correct stop bracket position for the shelf type being
installed.
•

For a front shelf installation, use stop position 5, which is part of
the mounting bracket.

•

For a rear shelf installation, secure a stop bracket to both
mounting brackets in stop position 4 with a screw as shown in
Figure 4-10.

Figure 4-10 Stop Brackets Showing Stop Positions 4 and 5
Stop
position
#4
Stop
position
#5

Stop
bracket

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-9

Installing an Add-On Controller Shelf
3.

Install the mounting bracket:
•

Position the first mounting bracket behind the outer flange and
against the horizontal cabinet bracket for vertical mounting as
shown in Figure 4-11 or against the vertical rail for horizontal
mounting as shown in Figure 4-12.

Figure 4-11 Vertical Mounting—Tab-Mounted Cabinet Bracket
THRL 10-32
TRS .500 XRCS
screw
Stop
position #4

Stop
bracket
Stop
position #5

Mounting stud
(4 places)

Shelf mounting bracket
(lower position)

Mounting tab
(4 places)

Shelf locking
bracket

M5 kep nut
(4 places)
Horizontal cabinet
bracket
Vertical cabinet
rails
CXO4075B

4-10 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf
Figure 4-12 Horizontal Mounting—Tab-Mounted Bracket with
Slot 4
Stop
position #4
Mounting
tab

Rear vertical
cabinet rail

Locking
bracket
Mounting
bracket

Kep nut,
M5
Mounting
stud
CXO6211A

•

Ensure that the mounting studs align with the rail mounting
holes.

•

Slide the mounting bracket forward to seat the studs and tabs,
ensuring that the cables are not pinched in the process.

•

Install the Kep nuts on the outer studs and fully tighten them.

Repeat steps 2 and 3 for the other mounting bracket, ensuring that the
second bracket aligns with the first bracket.

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-11

Installing an Add-On Controller Shelf

Note
Shelf orientation is determined by the shelf location (front or
rear).

Orient the shelf as determined by the location of the power cords
within the slot opening (see Figure 4-13):
•

Horizontal mount: cords are on the left, orientation is the same
for front and rear.

•

Vertical mounts: if the cords are at the top, orient using typical
cabinet front, or if the cords are at the bottom, orient using typical
cabinet rear.

Vertical Mount
(Typical Cabinet Front)

Cache module B

I/O module
Controller A
Controller B

CXO6239A

Horizontal Mount
(Front or Rear)

Power
supply

Controller B
Controller A
I/O module

Cache module B

Cache module A

Power
supply

Cache module A

I/O module
Controller A
Controller B

Cache module B

Power
supply

Figure 4-13 Controller Shelf Mount Orientations

Power
supply
Power
supply
CXO6237A

CXO6238A

Vertical Mount
(Typical Cabinet Rear)

4-12 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf
6.

Gently slide the shelf into the mounting brackets as shown in Figure
4-14 and fully seat it against the stop brackets.

Figure 4-14 Inserting a Shelf into a Cabinet

CXO6098A

Based upon the shelf location (front or rear), select the two
appropriate locking brackets for use:
•

For a front-mounted shelf, use locking bracket number
74–46441–02 (see Figure 4-15).

Figure 4-15 Front Locking Bracket

CXO6214A

•

For a rear-mounted shelf, use locking bracket number
74–46441–01 (see Figure 4-16).

Figure 4-16 Rear Locking Bracket

CXO6212A

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-13

Installing an Add-On Controller Shelf
8.

Position the two shelf locking brackets over the two center studs on
the shelf mounting brackets as shown in Figure 4-17.

Figure 4-17 Installing the Top and Bottom Shelf Locking
Brackets

1 2 3 4 5 6

CXO6095A

Finger-tighten two Kep nuts to secure one of the brackets.

10. Firmly push this locking bracket against the shelf to seat it.
11. Tighten the two Kep nuts for this locking bracket.
12. Repeat steps 9 through 11 for the other locking bracket.

4-14 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf

Installing the I/O Cables
Complete the following procedure to install the I/O cables:
Caution
To prevent damage to the controller or to the SBBs, the I/O
cables must be connected to SBB shelf prior to power
application.

Install the I/O cables on the appropriate side of the shelf for your
shelf’s orientation, as illustrated in Figure 4-18.

Figure 4-18 I/O Cable Installation

1
2
3

CXO6100A

Ensure that the cables are firmly seated in the connectors.

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-15

Installing an Add-On Controller Shelf

Installing the Cache and Controllers
Use the appropriate shelf mounting orientation (see Figure 4-19) and its
accompanying procedure to install the cache and controllers as the
following describes:

Vertical Mount
(Typical Cabinet Front)

Cache module B

I/O module
Controller A
Controller B

CXO6239A

Horizontal Mount
(Front or Rear)

Power
supply

Controller B
Controller A
I/O module

Cache module B

Cache module A

Power
supply

Cache module A

I/O module
Controller A
Controller B

Cache module B

Power
supply

Figure 4-19 Controller Shelf Orientations

Power
supply
Power
supply
CXO6237A

CXO6238A

Vertical Mount
(Typical Cabinet Rear)

4-16 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf

Horizontal Mount Orientation
Complete the following procedure using Figure 4-19 to install shelf
components:
1.

Install the cache A module in the bottom, left cache slot next to the
power supplies.

Install cache B or blank panel to the right of cache A.

Install controller A in the slot immediately below the I/O module.

Install controller B or blank panel immediately below controller A.

Front Vertical Mount Orientation
Complete the following procedure using Figure 4-19 to install shelf
components:
1.

Install the cache A module in the top, left cache slot under the power
supplies.

Install cache B or blank panel under cache A.

Install controller A in the slot immediately to the left of the I/O
module.

Install controller B or blank panel immediately to the left of controller
A.

Rear Vertical Mount Orientation
Complete the following procedure using Figure 4-19 to install shelf
components:
1.

Install the cache A module in the bottom, right cache slot above the
power supplies.

Install cache B or blank panel immediately above cache A.

Install controller A in the slot immediately to the right of the I/O
module.

Install controller B or blank panel immediately to the right of
controller A.

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-17

Installing an Add-On Controller Shelf

Completing the Installation
Complete the following procedure to finish installing the DS–BA356–MD
controller shelf add-on kit:
1.

Install and connect the ECB and cables using the SCSI Controller
Shelf Upgrade/Add-On Kits User’s Guide.

Install the host port cables using the appropriate array controller
documentation.
Caution
Connecting the first power cord in the next step applies power
to the shelf.

Dress the cables with tie wraps, ensuring that the cables do not
interfere with the removal of any modules.

Figure 4-20 is an example of a completed DS–BA356–MD shelf
configuration that includes:
(1)

Top and bottom front shelf locking brackets

(2)

Power supplies

(3)

Array controller module A

(4)

Array controller module B

(5)

Host port adapter cables

(6)

ECB cables

(7)

Controller cache module A

(8)

Controller cache module B

(9)

Power supply cords

4-18 SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

Installing an Add-On Controller Shelf
Figure 4-20 Completed DS–BA356–MD Shelf Configuration
1

6
3
4
8

7
6

CXO6103A

Pack the old shelf components for disposition.

Setup and test the controller shelf using procedures in the appropriate
array controller configuration guide.

You are finished with installing the controller shelf.

SCSI Controller Shelf Upgrade/Add-On Shelf Installation Guide

4-19