symbios logic J21971S-0398 User manual

MetaStor
Command Module
Installation Guide
J21971S-0398
Revision A

This book is intended for system operators, system administrators,
and service technicians. It provides site preparation information
and step-by-step instructions for installing the MetaStor™
Command Module.This bookassumes that the readerunderstands
disk array, SCSI bus, and Fiber Channel technology, and has
extensive knowledge of computer system operation, maintenance,
and repair.
TheproductdescribedinthisbookisalicensedproductofSymbios
Logic Inc.
MetaStor™and SYMplicity™Storage Manager are trademarks of
Symbios Logic Inc. WindowsNT™is a trademark of the Microsoft
Corporation.Solaris®OperatingSystemisaregisteredtrademarkof
Sun Microsystems, Inc. HP-UX® is a registered trademark of
Hewlett Packard, Inc.
It is the policy of Symbios Logic Inc. to improve products as new
technology, components, software, and firmware become available.
Symbios Logic, therefore, reservesthe right to change specifications
without prior notice.
All features, functions, and operations described hereinmay notbe
marketed by Symbios Logic in all parts of the world. In some
instances, photographs and figures are of equipment prototypes.
Therefore, before usingthis document, consult your SymbiosLogic
Inc. representative for information that is applicable andcurrent.
Copyright © 1997, 1998
By Symbios Logic Inc.
All Rights Reserved
Printed in U.S.A.
Revision A

Revision A, March 1998 i
Federal Communications Commission (FCC) Radio Frequency Interference Statement
Information To User 0
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1 This device may not cause harmful interference, and
2 This device must accept any interference received, including interference that may cause undesired
operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a commercial installation. 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. Operation of this equipment in a residential area is likely to cause
harmful interference, in which case the user will be required to correct the interference at his own expense.
Symbios Logic Inc. is not responsible for any radio or television interference caused by unauthorized
modification of this equipment or the substitution or attachment of connecting cables and equipment
other than those specified by Symbios Logic. The correction of interference caused by such unauthorized
modification, substitution, or attachment will be the responsibility of the user.
The digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the
Radio Interference Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils
numériques de las classé A prescrites dans le Reglemènt sur le brouillage radioélectrique édicté par le ministère des

ii MetaStor Command Module Installation Guide Revision A, March 1998
 
   
12/1997 Initial release
A 03/1998 All pages. Added Fiber Channel information and corrected errors.

Revision A, March 1998 iii
Contents
Chapter One
Installation Instructions
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Preparatory Tasks and Assumptions . . . . . . . . . . . . . . . . . . . . . . .2
Tools and Equipment You May Need . . . . . . . . . . . . . . . . . . 3
About the Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . .3
Preparing the Data Center Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About Support Rails and Blank Panels . . . . . . . . . . . . . . . . . . . . .4
◆Prepare the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
◆Set the Drive SCSI IDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Preparing the Command Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Command Module Preparation Notes . . . . . . . . . . . . . . . . . . . . .9
◆Remove the Command Module CRUs . . . . . . . . . . . . . . . . . . . 10
◆Set the Host IDs on the Controllers. . . . . . . . . . . . . . . . . . . . . .12
Installing the Rackmount Command Module . . . . . . . . . . . . . . . . . 14
Power Cord Routing Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
◆Mount the Command Module in the Cabinet . . . . . . . . . . . . .16
◆Connect the Interface Cables . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Deskside SCSI Cabling Examples . . . . . . . . . . . . . . . . . . . . . . . . .26
Rackmount SCSI Cabling Examples . . . . . . . . . . . . . . . . . . . . . .29
◆Connect the Power Cords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Start-up Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Configuration Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
◆Turn On the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
◆Configure the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Chapter Two
Technical Reference
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Site Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Service Area Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Site Wiring and Power Considerations . . . . . . . . . . . . . . . . . . . .54

iv MetaStor Command Module Installation Guide Revision A, March 1998
Host Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Fiber Channel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Fibre Optic and Copper Wire Cables . . . . . . . . . . . . . . . . . . 58
FC Host ID Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
SCSI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
SCSI Connectors and Cables. . . . . . . . . . . . . . . . . . . . . . . . . . 60
16-Bit Vs. 8-Bit Connections . . . . . . . . . . . . . . . . . . . . . . 61
SCSI Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SCSI Host ID Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Host SCSI Pin Assignments and Signals . . . . . . . . . . . . 63
SCSI Drive Pin Assignments and Signals. . . . . . . . . . . . . . . 65
Manufacturer and FCC Information. . . . . . . . . . . . . . . . . . . . . . . . . . 67
Product Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Revision A, March 1998 v
List of Figures
Chapter One
Installation Instructions
Figure 1. Removing Back Panel from Data Center Cabinet . . . . . . . . . . . . . . .5
Figure 2. Data Center Cabinet Modules and Blank Panels . . . . . . . . . . . . . . .6
Figure 3. Installing Rackmount Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Figure 4. Removing and Installing the CRUs . . . . . . . . . . . . . . . . . . . . . . . . .11
Figure 5. Setting Controller Host ID Numbers . . . . . . . . . . . . . . . . . . . . . . . .13
Figure 6. Power Connections to the Data Center Cabinet and
Command Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure 7. Chassis Mounting on Support Rails . . . . . . . . . . . . . . . . . . . . . . . . .17
Figure 8. Removing the Battery and Controller CRUs . . . . . . . . . . . . . . . . . .19
Figure 9. Fiber Channel Cable and Clips . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 10. Installing the Fiber Channel Cable . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 11. Interface Connections on Command Module . . . . . . . . . . . . . . . . .24
Figure 12. One Deskside Command Module to One Drive Module . . . . . . .26
Figure 13. One Deskside Command Module to Two Drive Modules . . . . . .26
Figure 14. One Deskside Command Module to Three Drive Modules . . . . .27
Figure 15. One Deskside Command Module to Four Drive Modules . . . . .27
Figure 16. One Deskside Command Module to Five Drive Modules . . . . . .28
Figure 17. One Rackmount Command Module to One Drive Module . . . . .29
Figure 18. One Rackmount Command Module to Two Drive Modules . . . .29
Figure 19. One Rackmount Command Module to Three Drive Modules . . .30
Figure 20. One Rackmount Command Module to Four Drive Modules . . . .30
Figure 21. One Rackmount Command Module to Five Drive Modules . . . .31
Figure 22. Two Rackmount Command Modules to Five Drive Modules . . .32
Figure 23. Two Rackmount Command Modules to Six Drive Modules . . . .33
Figure 24. Two Rackmount Command Modules to Seven Drive Modules . .34
Figure 25. Two Rackmount Command Modules to Eight Drive Modules . .35
Figure 26. Two Rackmount Command Modules to Nine Drive Modules . .36
Figure 27. Two Rackmount Command Modules to Ten Drive Modules . . .37
Figure 28. Three Rackmount Command Modules to Six Drive Modules . . .38
Figure 29. Three Rackmount Command Modules to
Seven Drive Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 30. Three Rackmount Command Modules to
Eight Drive Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Figure 31. Power Switches and Power Cords . . . . . . . . . . . . . . . . . . . . . . . . . .42
Chapter Two
Technical Reference
Figure 32. Command Module Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Figure 33. Copper Wire and Fibre Optic Connectors . . . . . . . . . . . . . . . . . . . .58
Figure 34. Interface Connectors and Host ID Pins . . . . . . . . . . . . . . . . . . . . . .59

vi MetaStor Command Module Installation Guide Revision A, March 1998

Revision A, March 1998 vii
List of Tables
Chapter Two
Technical Reference
Table 1. Command Module Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Table 2. Command Module Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Table 3. Command Module Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Table 4. Sample Disk Array Software Parameter Settings . . . . . . . . . . . . . . .51
Table 5. Environment Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Table 6. Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Table 7. Site Wiring Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Table 8. Command Module Fiber Channel Interface Cables . . . . . . . . . . . . .58
Table 9. Command Module SCSI Interface Cables . . . . . . . . . . . . . . . . . . . . .61
Table 10. SCSI Pin Assignments for Differential P-Cable . . . . . . . . . . . . . . . . .63
Table 11. Host SCSI Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Table 12. SCA-2 Interface Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Table 13. SCA-2 Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

viii MetaStor Command Module Installation Guide Revision A, March 1998


Revision A, March 1998 Installation Instructions 1
Chapter One
Installation Instructions
This chapter contains instructions for installing a deskside or
rackmount MetaStor Command Module. For information on
operating and servicing the command module, refer to MetaStor
Command Module System Guide, J20971S.
Getting Started page 2
Preparatory Tasks and Assumptions page 2
About the Installation Procedures page 3
Preparing the Data Center Cabinet page 4
About Support Rails and Blank Panels page 4
Prepare the Cabinet page 5
Set the Drive SCSI IDs page 8
Preparing the Command Module page 9
Command Module Preparation Notes page 9
Remove the Command Module CRUs page 10
Set the Host IDs on the Controllers page 12
Installing the Rackmount Command Module page 14
Mount the Command Module in the Cabinet page 16
Connect the Interface Cables page 18
Deskside SCSI Cabling Examples page 26
Rackmount SCSI Cabling Examples page 29
Connect the Power Cords page 41
Completing the Installation page 43
Turn On the Power page 44
Configure the System page 45


Getting Started
Preparatory Tasks and Assumptions
2 MetaStor Command Module Installation Guide Revision A, March 1998
Getting Started
Important Note This section specifies the preparations you should have completed
before beginning the installation and explains the overall
installation process. Read everything in this section before you
start the installation procedure.
Preparatory Tasks and
Assumptions The instructions in this book assume:
●You have already installed the applicable hosts and host
adapters.
●Interface cables (SCSI or Fiber Channel) are attached to the
appropriate hosts and are ready for final connection to the
command module.
●The installation site meets all area, environmental, power, and
site requirements for the command module. Refer to command
module’s requirements listed in “Site Requirements” on page 52.
●If you are installing a rackmount command module in a Data
Center cabinet, the cabinet is in its permanent operation location
and is prepared for final installation. These preparations may
include installing:
●Support rails inside the cabinet for mounting the controller
module
●One or two independent power sources, such as an
uninterruptible power supply (UPS)
●Up to five MetaStorTM Drive Modules per command module
●Additional MetaStor Command Modules
●Additional power and interface cables
●If you are connecting a deskside command module to deskside
drive modules, the units are near their final location and are
prepared for installation.
●You have already removed the command module and other
items from the shipping container. Besides this book, the
shipment should include the following items:
●Two power cords. These attach the command module to the
AC power source inside the cabinet or to an external
receptacle.
●Transmittal document. This document contains last minute
installation, configuration, or operational information about
the command module.


Getting Started
About the Installation Procedures
Revision A, March 1998 Installation Instructions 3
Depending on how the command module was ordered, other items
may be included with the command module, such as interface
cables, 16-bit terminators, mounting hardware, or additional
documentation. Refer to the shipping list or invoice included with
the command module for a complete list of items.
Tools and Equipment You May Need
To complete this installation procedure, you will need some or all of
the following:
●Power cords (shipped with unit)
●Screwdrivers and wrenches (various sizes)
●Antistatic protection (such as a grounding wrist strap)
●Interface cables, terminators, and tie wraps
●Mounting hardware (for rackmount installations)
●Table or cart (optional)
●Software (to configure the disk array)
About the Installation
Procedures The step-by-step procedures in this chapter will guide you through
the entire installation process for both the deskside and rackmount
command modules. These procedures include:
●Preparing the Data Center cabinet (rackmount installation only)
●Preparing drive modules that you intend to attach to the
command module
●Preparing the command module
●Installing the command module
●Completing the installation
You should perform these tasks in the order that they are given,
beginning with one of the following:
●To install one or more rackmount command modules, go to
“Preparing the Data Center Cabinet” on page 4.
●To install one or more deskside command modules, move the
command module to the installation location, and go to
“Set the Drive SCSI IDs” on page 8.


Preparing the Data Center Cabinet
About Support Rails and Blank Panels
4 MetaStor Command Module Installation Guide Revision A, March 1998
Preparing the Data Center Cabinet
Before installing the command module in a Data Center cabinet, you
must prepare the cabinet. Preparation may include:
●Turning off the main power
●Removing external cabinet panels
●Installing a set of support rails
●Changing the SCSI ID settings on the drive modules or other
devices in the cabinet
This section lists some of the things you should check or do before
you begin installing a rackmount command module.
About Support Rails and
Blank Panels To install the command module in a Data Center cabinet, you will
need two kits: a rackmount support rail kit and a blank panel kit.
Placement of support rails and blank panels in or on the cabinet
depends on where you intend to position the command module.
Support rail kits are available from your local dealer. Kits are
shipped separately. Each kit contains the following parts:
●One pair of rackmount support rails
●16 (10-32 x ½) Phillips screws
●4 (6-32 x 3/8) Phillips screws (non self-tapping)
●2 (6-32 x 3/8) Phillips screws (self-tapping)
For installing the support rails in the Data Center cabinet for the
command module, you will need the following parts from the kit:
●One pair of rackmount support rails
●12 (10-32 x ½) Phillips screws
●4 (6-32 x 3/8) Phillips screws (non self-tapping)
Also available from your local dealer, blank panel kits contain the
following parts:
●One 1.75-inch blank panel with mounting bracket
●One 3.5-inch blank panel with mounting bracket
●One 5.25-inch blank panel with mounting bracket
●10 (10-32 x ½) Phillips screws


Preparing the Data Center Cabinet
Prepare the Cabinet
Revision A, March 1998 Installation Instructions 5
Prepare the Cabinet
Tools/Equipment Support rail kit and screwdrivers
Instructions Use this procedure to setup a Data Center cabinet and prepare to
install a rackmount command module. During this installation, you
must be able to access the interior of the cabinet in order to mount
hardware on the EIA rails, route power and interface cables, and set
switches on the command module and drive modules. As well, you
must have enough room around the outside of the cabinet to lift and
install the command module chassis into the cabinet.
1
Turn off the power.
If applicable, stop all I/O activity to the Data Center cabinet in which
you intend to install the command module. Turn off the power switches
on both AC distribution boxes in the cabinet.
2
Remove the panels from the Data Center cabinet (Figure 1).
Remove the back panel from the cabinet. This will make it easier to
install the support rails and command module hardware. If there is a
blank panel on the front of the cabinet across the area where you intend
to install the command module, remove the blank panel. For more
information on removing and adjusting the blank panels on the Data
Center cabinet, refer to the blank panel kit instructions.
Figure 1 Removing Back Panel from Data Center Cabinet


Preparing the Data Center Cabinet
Prepare the Cabinet
6 MetaStor Command Module Installation Guide Revision A, March 1998
3
Determine where to install the support rails (Figure 2).
In general, it is best to install devices in the Data Center cabinet from
the bottom up to keep the cabinet from being top heavy. Therefore, try
to install the command module in the next assigned position, above the
topmost device in the cabinet. If you are also installing drive modules
that will connect to the command module, you should install the drive
modules above and below the command module for ease of cabling.
There must be at least 7 inches clearance above the base of the new
support rails for the command module. Refer to the cabling examples
for rackmount modules beginning on page 29 for examples of command
module and drive module placement in the cabinet.
Figure 2 Data Center Cabinet Modules and Blank Panels
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 
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


Preparing the Data Center Cabinet
Prepare the Cabinet
Revision A, March 1998 Installation Instructions 7
4
Install the support rails.
Make sure that the support rails are level before installing them in the
cabinet. You can count the cabinet rail holes (from top or bottom) to
find the correct position, then attach each support rail as follows:
a
Facing the front of the cabinet, hold the first support rail
inside the cabinet so the mounting bracket holes align with
the holes in the cabinet rail (Figure 3). Insert a 10-32 x ½
screw through the cabinet rail and into the middle hole on
the support rail. Attach the second support rail to the front
of the cabinet on the opposite side.
b
Facing the back of the cabinet, align the holes in the support
rail with the holes in the back cabinet rail. Make sure that the
support rail is level. Insert three 10-32 x ½ screws through
the cabinet rail and into the bracket in the support rail.
Attach the second support rail to the back of the cabinet.
c
On the front of the cabinet, install screws in the top and
bottom holes of both support rail brackets.
d
If you are installing additional modules (command or drive)
in this cabinet, repeat Step a through Step c to add more
support rails. When you are finished, go to “Set the Drive
SCSI IDs” on page 8.
Figure 3 Installing Rackmount Rails
End of Procedure

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 ! 
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
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
Preparing the Data Center Cabinet
Set the Drive SCSI IDs
8 MetaStor Command Module Installation Guide Revision A, March 1998
Set the Drive SCSI IDs
Tools/Equipment Antistatic wrist strap, screwdriver, jumpers, and other applicable
tools
Instructions A deskside or rackmount command module supports five SCSI
drive channels with up to ten drives per channel. Although the host
IDs for the command module controllers are selectable (see page
12), the drive SCSI IDs are not selectable on the controller module.
The command module controllers reserve drive SCSI IDs 6 and 7.
Drive modules can use drive SCSI IDs 0–4 or 8–12 (C hexadecimal).
Use this procedure to check and change the drive SCSI IDs on all
drive modules that you intend to attach to the command module.
CAUTION Electrostatic charge can damage sensitive components. Use a
grounding wrist strap or other antistatic device before removing or
handling the components in the cabinet.
1
Put on an antistatic wrist strap or other protective device.
Make sure that the power to all applicable drive modules is turned off.
2
As necessary, change the SCSI ID settings on all drive
modules that you are attaching to the command module.
As necessary, change the drive module drive SCSI ID numbers using
the instructions provided in the drive module hardware documentation
and the examples shown in “Deskside SCSI Cabling Examples” on
page 26 or “Rackmount SCSI Cabling Examples” on page 29. The
illustrations show drive channel and drive SCSI ID numbering
schemes, based on the number of attached drive modules. Do not use
drive SCSI ID numbers 6 or 7.
3
Choose one:
●Installing a rackmount command module. Go to “Preparing
the Command Module” on page 9.
●Installing a deskside command module. Go to “Set the Host
IDs on the Controllers” on page 12.
End of Procedure


Preparing the Command Module
Command Module Preparation Notes
Revision A, March 1998 Installation Instructions 9
Preparing the Command Module
This procedure explains how to reduce the overall weight of the
command module (for lifting purposes) and how to select its host
SCSI ID settings.
Command Module
Preparation Notes It is easier to lift a rackmount command module and set it onto the
support rails in the cabinet if you remove all the customer replaceable
units (CRUs) first. CRUs are portable, removable units that house
the controllers, fans, power supplies, and batteries. A fully loaded
command module weighs approximately 34.5 kg (76 lb). You can
reduce the overall weight approximately 18.1 kg (40 lb) by removing
the controllers, battery, power supplies, and fans.


Preparing the Command Module
Remove the Command Module CRUs
10 MetaStor Command Module Installation Guide Revision A, March 1998
Remove the Command Module CRUs
Tools/Equipment Needed Antistatic wrist strap and flat-blade screwdriver
Instructions The following instructions tell you how to remove the CRUs from a
rackmount command module.
Caution Electrostatic discharge can damage sensitive components. Use a
grounding wrist strap or other antistatic precautions before
removing or handling any components in the cabinet.
Caution Bending or damaging Fiber Channel cables could result in
degraded performance or data loss. Keep the cables to the left side
of the controller slot when you install a Fiber Channel controller
CRU. Make sure the cables are not pinched, bent, nicked, or pulled
during the installation.
Caution Fibre optic cables are very fragile.
Do not pinch the cables with tie wraps.
●Do not make sharp bends when routing the cables.
●Do not step on the cables or locate them in aisles or walkways.
1
Remove the front panel and CRUs.
To reduce the overall weight of the command module, remove the CRUs
(controller, controller fan, battery, power supply, and power supply
fan). To do this, use the illustrations and instructions provided in
Figure 4. If this unit has been cabled for Fiber Channel, be careful not
to damage the FC cable when removing or replacing the controllers.
2
Go to “Set the Host IDs on the Controllers” on page 12.
End of Procedure