fla200 drive module

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FLA200 Drive Module

User Guide

EH1488-2-E1, First Edition


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Proprietary Rights Notice

This document contains proprietary information of Engenio Information Technologies,

Inc. and Storage Technology Corporation. The information contained herein is not to be

used by or disclosed to third parties without the express written permission of an officer of

Engenio or Storage Technology Corporation. Any product(s) described herein is/are a

licensed product of Engenio and Storage Technology Corporation.

Document Description

Document EH1488-2-E1, First Edition. July 2004

This document provides procedures for operating, upgrading, and troubleshooting

problems for the FLA200 drive module and will remain the official reference source for

all revisions/releases of this product until rescinded by

an update.

Disclaimer

It is the policy of Engenio Information Technologies and Storage Technology Corporation

to improve products as new technology, components, software, and firmware become

available. We reserve the right to make changes to any products herein at any time without

notice. All features, functions, and operations described herein may not be marketed in all

parts of the world. In some instances, photographs and figures are of equipment

prototypes. Therefore, before using this document, consult your sales representative or

account team for information that is applicable and current. WE DO NOT ASSUME ANY

RESPONSIBILITY OR LIABILITY FOR THE USE OF ANY PRODUCT(S)

DESCRIBED HEREIN EXCEPT AS EXPRESSLY AGREED TO IN WRITING BY

ENGENIO.

License Restriction

The purchase or use of an Engenio/StorageTek solution does not convey a license under

any patent, copyright, trademark, or other intellectual property right of Engenio,

StorageTek, or its third parties.

Copyright Notice

2004 Engenio Information Technologies, Inc. All rights reserved.

2004 Storage Technology Corporation. All rights reserved.

Trademark Acknowledgments

Engenio, the Engenio design, StorageTek, the StorageTek logo, SANtricity Storage

Manager, HotScale, and SANshare are all trademarks or registered trademarks of Engenio

Information Technologies, Inc. or Storage Technology Corporation. All other brand and

product names may be trademarks of their respective companies.


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FLA200 Drive Module User Guide i

Regulatory Compliance Statements

FCC Radio Frequency Interference Statement

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to Part 15 of the Federal Communications Commission (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/her own

expense.

Engenio Information Technologies, Inc. and Storage Technology Corporation are 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

Engenio and Storage Technology Corporation. It is the users responsibility to correct interference

caused by such unauthorized modification, substitution, or attachment.

Laser Products Statement

This equipment has been tested and found to comply with regulations for Class 1 laser product

pursuant to 21 CFR, Section 1040-10. For outside the USA, this equipment has been tested and

found compliant with Class 1 laser product requirements contained in European Normalization

standard EN 60825-1 1994+A11. Class 1 levels of laser radiation are not considered to be

hazardous and are considered safe based upon current medical knowledge. This class includes all

lasers or laser systems which cannot emit levels of optical radiation above the exposure limits for

the eye under any exposure conditions inherent in the design of the laser products.

Engenio and Storage Technology Corporation are not responsible for any damage or injury caused

by unauthorized modification of this equipment or the substitution or attachment of connecting

cables and equipment other than those specified by Engenio and Storage Technology Corporation.

It is the users responsibility to correct interference caused by such unauthorized modification,

substitution, or attachment.


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ii FLA200 Drive Module User Guide

This Class A digital apparatus meets all requirements of the Canadian

Interference-Causing Equipment Regulations.

Cet appareil numrique de la class A respecte toutes les exigences du

Rglement sure le matriel brouilleur du Canada.


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FLA200 Drive Module User Guide iii

Conventions

The following conventions have been used throughout this book.

Definitions of Safety Notices

DANGER indicates an imminently hazardous situation that will result in death or severe personalinjury.

WARNING indicates a potentially hazardous situation that could result in death or severe personalinjury.

CAUTIONindicates a potentially hazardous situation that could result in moderate or minorpersonal injury.

Definitions of Informational Notices

CAUTION indicates a potentially hazardous situation that could result in data loss (or otherinterruption) or equipment damage.

IMPORTANT indicates information or criteria that is necessary to perform a procedure correctly.

NOTEindicates a concept that will be clarified or a maintenance tip that will be presented.

Revision Record

Part Number: EH1488-2-E1

Edition or Revision Date Affected Pages or Remarks

First Edition July 2004 New Book.


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iv FLA200 Drive Module User Guide


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FLA200 Drive Module User Guide v

Contents

Chapter 1: FLA200 DRIVE MODULE

Drive Module Description........................................................................................................1-2

Drives .......................................................................................................................................1-4

Fans .......................................................................................................................................... 1-5

Environmental Services Monitors (ESMs) .............................................................................. 1-6

Power Supplies.........................................................................................................................1-7

Tray ID Switch .........................................................................................................................1-8

SFP Transceivers......................................................................................................................1-9

Chapter 2: USINGTHE DRIVE MODULE

Removing and Replacing the Back Cover ...............................................................................2-2

Turning On the Power .............................................................................................................. 2-4

Turning Off the Power for a Planned Shutdown......................................................................2-7

Turning Off the Power for an Unplanned Shutdown .............................................................2-10

Restoring Power After an Unplanned Shutdown ...................................................................2-13

Responding to the Optional Audible Alarm...........................................................................2-16

Chapter 3: TROUBLESHOOTINGAND RECOVERY

Troubleshooting the Drive Module ..........................................................................................3-2

Recovering from an Overheated Power Supply .......................................................................3-5

Procedure ............................................................................................................................3-5

Setting the Tray ID Switch.......................................................................................................3-8

Verifying the Link Rate Setting .............................................................................................3-10

Chapter 4: REPLACINGA FAILED COMPONENT

Replacing a Drive.....................................................................................................................4-2

Tools and Equipment .......................................................................................................... 4-2

Procedure ............................................................................................................................4-2

Replacing a Fan ........................................................................................................................4-6

Tools and Equipment .......................................................................................................... 4-6


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vi FLA200 Drive Module User Guide

Procedure.............................................................................................................................4-6

Replacing an Environmental Services Monitor........................................................................4-9

Tools and Equipment ..........................................................................................................4-9

Procedure.............................................................................................................................4-9

Replacing a Power Supply .....................................................................................................4-12

Tools and Equipment ........................................................................................................4-12

Procedure...........................................................................................................................4-12

Replacing an SFP Transceiver ...............................................................................................4-15

Tools and Equipment ........................................................................................................4-15

Procedure...........................................................................................................................4-15

Chapter 5: UPGRADINGAND RELOCATINGTHE DRIVE MODULE

Upgrade Requirements .............................................................................................................5-2

Upgrade Methods .....................................................................................................................5-3

Add a New Drive to an Empty Slot ....................................................................................5-3

Replace Existing Drives with Greater Capacity Drives......................................................5-3

Replace All Drives at the Same Time ...........................................................................5-3

Replace One Drive at a Time ........................................................................................5-3

Adding New Drives to Empty Slots .........................................................................................5-5

Replacing All Drives at the Same Time...................................................................................5-8

Procedure.............................................................................................................................5-8

Replacing One Drive at a Time..............................................................................................5-12

Relocation Considerations......................................................................................................5-16


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FLA200 Drive Module User Guide vii

List of Figures

Chapter 1: FLA200 DRIVE MODULEFigure 1-1. Rackmount Drive Module ................................................................................... 1-2

Figure 1-2. Deskside Drive Module ....................................................................................... 1-3

Figure 1-3. Drives and Lights ................................................................................................ 1-4

Figure 1-4. Drive Numbering ................................................................................................. 1-4

Figure 1-5. Fans and Airflow ................................................................................................. 1-5

Figure 1-6. Environmental Services Monitor (ESM) ............................................................. 1-6

Figure 1-7. Power Supply ...................................................................................................... 1-7

Figure 1-8. Tray ID Switch .................................................................................................... 1-8Figure 1-9. SFP Transceiver and Fiber Optic Cable .............................................................. 1-9

Chapter 2: USINGTHE DRIVE MODULE

Figure 2-1. Removing and Replacing the Deskside Module Back Cover ............................. 2-3

Figure 2-2. Power Supply Switch .......................................................................................... 2-5

Figure 2-3. Power Supply Switches ....................................................................................... 2-9

Figure 2-4. Power Supply Switches ..................................................................................... 2-12

Figure 2-5. Power Supply Switch yes .................................................................................. 2-14

Figure 2-6. Alarm Mute Button ........................................................................................... 2-16

Chapter 3: TROUBLESHOOTINGAND RECOVERY

Figure 3-1. Drive Module Lights Front View ..................................................................... 3-3

Figure 3-2. Drive Module Lights Back View ..................................................................... 3-4

Figure 3-3. Power Supply Switches ....................................................................................... 3-7

Figure 3-4. Setting the Tray ID Switch .................................................................................. 3-9

Figure 3-5. Verifying the Link Rate Setting ........................................................................ 3-11

Chapter 4: REPLACINGA FAILED COMPONENT

Figure 4-1. Replacing a Drive ................................................................................................ 4-3

Figure 4-2. Replacing a Fan ................................................................................................... 4-7


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Figure 4-3. Replacing an Environmental Services Monitor ................................................. 4-10

Figure 4-4. Replacing a Power Supply ................................................................................. 4-13

Figure 4-5. Replacing an SFP Transceiver ........................................................................... 4-16

Chapter 5: UPGRADINGAND RELOCATINGTHE DRIVE MODULE

Figure 5-1. Removing and Installing a Drive ......................................................................... 5-6

Figure 5-2. Power Supply Switch ........................................................................................ 5-10

Figure 5-3. Removing and Installing a Drive ....................................................................... 5-10

Figure 5-4. Removing and Installing a Drive ....................................................................... 5-14


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FLA200 Drive Module User Guide ix

List of Tables

Chapter 3: TROUBLESHOOTINGAND RECOVERYTable 3-1. Drive Module Lights Front View ...................................................................... 3-3

Table 3-2. Drive Module Lights Back View ....................................................................... 3-4


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FLA200 Drive Module User Guide xi

About This Book

The FLA200 Drive Module User Guide provides procedures for using and troubleshooting

the FLA200 drive module.

Intended Readers

This book is intended for end users, system operators, system administrators, and service

personnel who are responsible for operating, maintaining, troubleshooting, and servicing

the hardware. Readers must be familiar with computer system operation, maintenance,

and repair. Additionally, users should understand disk array, RAID, network, and Fibre

Channel technologies. This book was designed with the assumption that the user has basic

SAN hardware user skills.

Related Publications

Related publications include the following:

FLA200 Drive Module Installation Guide

Hardware Cabling Guide

Web Address

For web sites related to the products in this publication, please see the Product

Release Notes.


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xii FLA200 Drive Module User Guide


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FLA200 Drive Module User Guide 1-1

Chapter 1

FLA200 Drive Module

This chapter describes the FLA200 drive module and its components.


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1-2 FLA200 Drive Module User Guide

Drive Module Description

The FLA200 drive module is a compact module that provides high-capacity disk storage

for Fibre Channel environments. It is available in either a deskside or a rackmount model.

The drive module contains up to 14 disk drives, two environmental services monitors

(ESMs), two fans, and two power supplies. In a fully-configured system, the components

are fully redundant. If one component fails, its counterpart can maintain operations until

the failed component is replaced.

Figure 1-1 and Figure 1-2 show front and back views of the drive module. The front views

show the following components:

Front bezel Molded frame containing drive and global indicator lights and a mutebutton for the optional audible alarm feature

Drives Up to 14 removable disk drives

The back views show the following components:

Fans Two removable fan housings, each containing two fans

ESMs Two removable environmental services monitors (ESMs) board

Power supplies Two removable power supplies

Figure 1-1 Rackmount Drive Module

73155

7 7

Conflict

Tray Number

X10 X1

1Gb 2Gb

A B

1

2

54

3

1. Bezel

2. Drive

3. ESM

4. Fan

5. Power Supply


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Figure 1-2 Deskside Drive Module

1. Bezel

2. Drive

3. ESM

4. Fan

5. Power Supply


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FLA200 Drive Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


Drives

The drive module supports up to 14 removable drives. Note that the drives in your drive

module may differ slightly in appearance from those shown. The variation will not affect

the function of the drives.

Figure 1-3 shows the drive module, a drive, and the Active and Fault lights for one drive.

Figure 1-4 shows the physical locations of the drives, which are numbered 1 through 14,

from left to right. When a drive is installed, the drive and tray slot designation is set

automatically. The hardware addresses are based on the tray number switch setting on the

ESM and the drives physical location in the drive module.

Figure 1-3 Drives and Lights

Figure 1-4 Drive Numbering

1. Drive

2. Active Light

3. Fault Light


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Fans

The drive module has two removable fan housings, each containing two fans. The fans

provide redundant cooling, which means that if one of the fans in either fan housing fails,

the remaining fans will continue to provide sufficient cooling to operate the drive module.

The four fans circulate air inside the drive module by pulling air in through the vents on

the front of the module and pushing the air out the vents on the back of each fan housing.

Figure 1-5 shows a fan housing with a set of fans and the drive module airflow.

Figure 1-5 Fans and Airflow

75108

1

2

3

4

5

1. Vents

2. Knob

3. Fault Light

4. Latch

5. Fan Housing


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Environmental Services Monitors (ESMs)

The drive module contains two removable environmental services monitors (ESMs). The

ESMs support both fiber optic and copper fiber interfaces for both the host and drive

channels.

Figure 1-6 shows an ESM. Each ESM has a locking lever, two interface ports and status

lights.

Figure 1-6 Environmental Services Monitor (ESM)

1. Locking Lever2. Indicator Lights

3. ESM


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Power Supplies

The drive module contains two removable power supplies. Each power supply is housed

in removable a component. The power supplies provide power to the internal components

by converting incoming AC voltage to DC voltage. If one power supply is turned off ormalfunctions, the other one will maintain electrical power to the drive module

Figure 1-7 shows the power supplies. A power supply may be used in either the left or

right position, because the orientation of its locking lever can be reversed.

Figure 1-7 Power Supply

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34

5

6

1

7 7

Conflict

Tray Number

X10 X1

1Gb 2Gb

A B

2

1. Locking Lever

2. Power Connector

3. Power Switch

4. Power Light

5. Fault Light6. Power Supply


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Tray ID Switch

IMPORTANT Each module in the disk subsystem musthave a unique tray ID.

The Tray ID switch is located between the power supplies on the back of the drive module.

The Tray ID switch lets you assign the module a unique tray ID, which is required for

proper operation of the disk subsystem. The settings for each Tray ID digit (X10 and X1)

range from 0 through 7. Recommended unique ID numbers range from 01 through 77.

Figure 1-8 shows the Tray ID switch. The switch is covered with a metal cover plate

secured with a screw. You must remove the screw and metal plate to view or change the

Tray ID switch setting.

Figure 1-8 Tray ID Switch

1. Cover Plate

2. Screw

3. Tray ID Switch


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SFP Transceivers

The drive module supports either copper or fiber optic interface cables. If fiber optic

cables are used, a Small Form-factor Pluggable (SFP) transceiver must be installed in each

interface connector on the controller where a fiber optic cable is to be installed.

Figure 1-9 shows an SFP transceiver with fiber optic cable. The SFP transceiver shown

may look different from those shipped with your unit. The differences will not affect

transceiver performance.

Figure 1-9 SFP Transceiver and Fiber Optic Cable

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12

3

4

1. Fiber Optic Cable

2. SFP Transceiver

3. Interface Connector

4. ESM


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Chapter 2

Using the Drive Module

This chapter provides general operating procedures for the FLA200 drive module.


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Using the Drive Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


Removing and Replacing the Back Cover

CAUTION Potential damage to cables. To prevent degraded performance or damaged

cables, do not bend or pinch the cables between the module and the backcover.

Back covers are available only on deskside modules. If you have a rackmount module, you

must open the hinged door or remove the access panel of the rackmount cabinet.

Removing the back cover lets you see the indicator lights and access the cables and

module components.

Figure 2-1 illustrates the following steps to remove and replace the back cover.

1 Remove the back cover.

Push the back cover up from the bottom, and pull the cover away from the module.

2 Replace the back cover.

a Hold the back cover next to the back of the module, and carefully route all cablesthrough the opening at the bottom of the cover.

If the opening is too small for all cabling, route some cables through the gap

between the bottom of the module and the floor.

b Align the tabs on the cover with the tab openings in the module, and then push thecover onto the module to snap it into place.

End Of Procedure


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Figure 2-1 Removing and Replacing the Deskside Module Back Cover

75119

1

1. Tab Openings


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Turning On the Power

Use the following procedure to turn on power to one or more disk subsystem modules for

an initial startup or after a planned shutdown. Figure 2-2 shows the location of the power

switches on a drive module.

This procedure covers two situations:

The entire disk subsystem has been shut down (main circuit breakers for the rack areoff)

Some modules are being powered on while others may remain on line (main circuitbreakers for the rack are on)

You may encounter the second situation if you are adding an additional drive module to

increase storage capacity - hot scaling.

CAUTION HotScale technology allows you to add storage capacity to an existing disksubsystem without interrupting power to the disk subsystem. If the control

module or array module to which this drive module is attached is currently

powered on, and you plan to power up the drive module without powering off

the control module or array module, contact technical support before

proceeding.

CAUTION Potential damage to drives and data loss. Turning the power off and onwithout waiting for the disk drives to spin down can damage the drives and

may cause data loss. Always wait at least 30 seconds from when you turn off

the power until you turn it on again.

IMPORTANT If you are connecting a module, power cord to a turn off both of its powerswitches first. If the main circuit breaker is off, be sure both power switches

are off on each module in the rack before turning on the main circuit

breakers.

1 Remove the back cover, if needed.

2 Are the main circuit breakers turned on?

Yes Turn offboth power switches on all modules that you intend to connect tothe power.

No Turn offboth power switches on all modules in the configuration.

3 Connect the power cords to the power supplies on each module.

4 If the main circuit breakers are turned off, turn them on.


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IMPORTANT It is recommended that you turn on the power to the drive modules before turning on power to the control module to ensure that the

controllers acknowledge each attached drive module.

5 Turn on both power switches on the back of each drive module.

The drives will not spin up until they receive a Start Unit command from the

controller. While the drive modules power up, the green and amber lights on the front

and back of the modules flash intermittently. Depending on your configuration, the

drive modules can take from 20 seconds to several minutes to power up.

6 Turn on both power switches on the back of the control module or array module.

A control module or array module can take up to 10 seconds to power up and up to 15

minutes to complete its controller battery self-test. During this time, the green and

amber lights on the front and back of the module flash intermittently.

Figure 2-2 Power Supply Switch

7 Check the status of each module and it components.

a Note the status of the lights on front and back of each module.

Green lights indicate a normal status; amber lights indicate a hardware fault.

b Open the Array Management Window for the disk subsystem.

c Select the appropriate component button for each module in the Physical View of

the Array Management Window to view the status of its components.

The status for each component will be either Optimal or Needs Attention.

1. Power Supply Switch2. Power Supply Switch


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8 Does each module display green lights only, and is the status Optimal on each modulecomponent?

Yes Go to step 10.

No Go to step 9.9 Diagnose and correct the fault.

a To run the Recovery Guru, select the Recovery Guru toolbar button in the ArrayManagement Window.

b Complete the recovery procedure.

If the Recovery Guru directs you to replace a failed component, use the individual

lights on the modules to locate the specific failed component. For troubleshooting

procedures, refer to Chapter 3, Troubleshooting and Recovery.

c When the recovery procedure is completed, select Recheck in the Recovery Guru

to rerun the Recovery Guru and to ensure that the problem has been corrected.d If the problem persists, contact technical support.

10 Replace the back cover, if needed.

End Of Procedure


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Turning Off the Power for a Planned Shutdown

Disk subsystem modules are designed to run continuously, 24 hours a day. After you

power up a module, it should remain on unless you need to perform certain upgrade and

service procedures.

Use the following procedure to turn off power to one or more disk subsystem modules for

a planned shutdown. Figure 2-3 on page 2-9 shows the location of the power switches on a

drive module.

1 Stop I/O activity to all modules.

2 Remove the front cover from the control module, if applicable.

CAUTION Potential data corruption. Turning off the power when an amber faultlight is illuminated can cause data corruption. To prevent data corruption,

always check for faults and correct all problems before turning off the

power.

3 Determine the status of each module and its components.

a Note the status of the lights on the front and back of each module.



c Select the appropriate component button for each module in the Physical View ofthe Array Management Window to view the status of its components.



Yes Go to step 6 on page 2-8.

No Go to step 5.

IMPORTANT If the fault requires you to power off an attached drive module, you mayneed to cycle the power on all remaining modules in the disk subsystem.

Contact technical support before powering off any attached module.

5 Diagnose and correct the fault.




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lights on the modules to locate the specific failed component. For troubleshooting


c When the recovery procedure is completed, select Recheck in the Recovery Guru

to rerun the Recovery Guru and to ensure that the problem has been corrected.

d If the problem persists, contact technical support.

CAUTION Potential data corruption. An abrupt power loss to a disk subsystemmodule can cause data corruption, especially if the power loss occurs

when data is being written to disk or if the power loss occurs when write

back caching is enabled anddata is being downloaded to cache memory.

Always wait until the Fast Write Cache light (control module) or the

Cache Active light (array module) turns off and all drive Active lights

stop flashing before turning off power to the modules.

6 Check the lights on the front of each attached drive module, and verify that all driveActive lights are on but not flashing.

If one or more drive Active lights are flashing, then data is being written to or from the

disks. Wait for all drive Active lights to stop flashing and then go to step 7.

7 Check the Fast Write Cache (control module) or the Cache Active light (arraymodule), and then choose one of the following steps, based on the status of the light.

Fast Write Cache or Cache Active light is off The cache contains no data. Gotostep 8.

Fast Write Cache or Cache Active light is illuminated Write-back caching isenabled anddata is in cache. Wait for the data to clear from cache memory and the

Fast Write Cache or Cache Active light to turn off, and then go to step 8. Refer to

the Array Management Window online help for information on cache memory

protection and settings.

CAUTION Potential damage to drives and data loss. Turning the power off and onwithout waiting for the drives to spin down can damage the drives and

may cause data loss. Always wait at least 30 seconds from when you turn

off the power until you turn it on again.

8 Turn off both power switches on the back of all modules in the disk subsystem.End Of Procedure


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Figure 2-3 Power Supply Switches

1. Power Supply Switch



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Turning Off the Power for an Unplanned Shutdown

Disk subsystem modules are designed to run continuously, 24 hours a day. Certain

situations, however, may require you to shutdown all disk subsystem modules quickly.

These situations might include a power failure or an emergency because of a fire, a flood,an extreme weather condition, or some other hazardous circumstance, or a power supply

shutdown caused by overheating.

Use the following procedure to turn off power to all disk subsystem modules for an

unplanned shutdown. Figure 2-4 on page 2-12 shows the location of the power switches

on a drive module.

CAUTION Potential damage to drives and data loss. Turning the power off and onwithout waiting for the disk drives to spin down can damage the drives and

cause data loss. Always wait at least 30 seconds from when you turn off the

power until you turn it on again.

1 Stop I/O activity to all disk subsystem modules.

2 Remove the front cover from the control module, if applicable.

CAUTION Potential data corruption. Turning off the power when an amber fault lightis illuminated can cause data corruption. To prevent data corruption, always

check for faults and correct all problems before turning off the power.








Yes Go to step 6.

No Go to step 5.


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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Turning Off the Power for an Unplanned Shutdown






lights on the modules to locate the failed component. For troubleshooting


IMPORTANT If a fault requires you to power off an attached drive module, you mayneed to cycle the power on the other disk subsystem modules. Contact

technical support before powering off any attached modules.

c When the recovery procedure is completed, select Recheck in the Recovery Guruto rerun the Recovery Guru and to ensure that the problem has been corrected.


CAUTION Potential data corruption. An abrupt power loss to a module can causedata corruption, especially if the power loss occurs when data is being

written to disks, or when write back caching is enabled anddata is being

downloaded to cache memory. Always wait until the Fast Write Cache

light on the control module turns off and all drive Active lights stop

flashing before turning off power to the modules.

6 Check the lights on the front of each attached drive module, and verify that all drive

Active lights are on but not flashing.

If one or more drive Active lights are flashing, then data is being written to or

from the disks. Wait for all drive Active lights to stop flashing and then

go to step 7.

7 Check the Fast Write Cache (control module) or the Cache Active light (arraymodule), and then choose one of the following steps based on the status of the light.

Fast Write Cache or Cache Active light is off The cache contains no data. Gotostep 8 on page 2-12.

Fast Write Cache or Cache Active light is illuminated Write-back caching is

enabled, anddata is in cache. Wait for the data to clear from cache memory and forthe Fast Write Cache or Cache Active light to turn off, and then go to step 8 on

page 2-12. Refer to the Array Management Window online help for information on

cache memory protection and setting.


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8 Check the lights on the back of the array module or control module, and then chooseone of the following steps, based on the current status of the lights.

Power and Loop Good lights are on; all others are off The module Link or100BT lights might be on if the module is using Ethernet connections.

Go to step 9.

One or more amber lights are on Do notcontinue with the power off procedureuntil you have corrected the fault. To diagnose the problem, go to

Troubleshooting the Drive Module on page 3-2.

9 Turn off the main circuit breaker in the cabinet.

10 Turn off the power switches on each of the modules in the disk subsystem that areaffected by the unplanned shutdown.

11 Unplug both power cables from each module.

12 Replace the front cover on the control module.

13 After the unplanned outage situation has passed, perform the power recoveryprocedure in Restoring Power After an Unplanned Shutdown.

End Of Procedure





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Restoring Power After an Unplanned Shutdown

Use the following procedure to restore power to all modules in a disk subsystem after an

unplanned shutdown. Figure 2-5 on page 2-14 shows the location of the power switches

on a drive module.

WARNING Risk of severe electrical shock. Never turn on the power to any equipment ifthere is evidence of fire, water, or structural damage. Doing so may cause

severe electrical shock.

1 Check all equipment for physical damage.


3 Is there evidence of damage to any components or cables?

Yes Do notcontinue with this procedure if you find any evidence of damage. Callthe factory or appropriate service organization for assistance. Depending on the

current service agreements, you may need to return the equipment to the factory or

local service center for repair.

No Go to step 4.

CAUTION Potential data loss or corruption. Ensure that all module powerswitches are turned offbefore resetting the circuit breakers. Failure to do

so can cause data loss or corruption.

4 Verify that each of thepower switches on all modules in the disk subsystem are turnedoff.

5 Are the main circuit breakers turned off?

Yes Turn on the main circuit breakers.

No Reset the main circuit breakers.

6 Connect the power cables to both power supplies in each module.

IMPORTANT It is recommended that you turn on the power to the drive modules before turning on the power to the control module to ensure that the

controllers acknowledge each attached drive module.

7 Turn on both power switches on the back of each drive module.


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The drives will not spin up until they receive a Start Unit command from the

controller. While the drive modules power up, the green and amber lights on the front

and back of the modules flash intermittently. Depending on your configuration, the

drive modules can take from 20 seconds to several minutes to power up.

8 Turn on both power switches on the back of each control module or array module.

A control module or array module can take up to 10 seconds to power up and up to 15

minutes to complete its controller battery self-test. During this time, the green and

amber lights on the front and back of the module flash intermittently.

Figure 2-5 Power Supply Switch yes

9 Check the status of each module and its components.



c Select the appropriate components button for each module in the Physical View ofthe Array Management Window to view the status of its components.


10 Does each module display green lights only, and is the status Optimal on all modulecomponents?

Yes Go to step 12.

No Go to step 11.

IMPORTANT If the fault requires you to power off an attached drive module, you mayneed to cycle the power on all remaining modules in the disk subsystem.

Contact technical support before powering off any attached module.




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lights on each of the modules to locate the specific failed component. For

troubleshooting procedures, refer to Chapter 3, Troubleshooting and Recovery.

c When the procedure is completed, select Recheck in the Recovery Guru to rerunthe Recovery Guru and to ensure that the problem has been corrected.


12 Replace the modules back cover, if needed.

End Of Procedure


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Responding to the Optional Audible Alarm

A drive module may have an optional audible alarm. A module with an optional alarm has

a Mute button on the front bezel below the Power light and Global Fault light. The alarm

sounds and the Global Fault light turns on when one of the following conditions occur:

Hardware malfunction in a drive module A malfunction may be an overheatingcondition, missing fan, or component failure (failed drive, environmental services

monitor, power supplie, or fan).

Transmission failure A transmission problem may be with a Gigabit InterfaceConverter (GBIC) module or with an interface cable.

The alarm does not affect the operation of the drive module indicator lights or the ability

of the module to report errors to the host.

Use the following procedure to turn off the alarm and to identify the problem that caused

the alarm to sound. Figure 2-6 shows the location of the Mute Button.

1 Locate the drive module with the alarm sounding and the amber Global Fault light.

2 Press the Mute button to turn off the alarm. If another fault occurs, the alarm willsound again.


Figure 2-6 Alarm Mute Button







1. Power Light

2. Global Fault Light

3. Mute Button


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a Yes Go to step 7.

b No Go to step 6.





lights on the module to locate the specific failed component. For troubleshooting


c When the recovery procedure is completed, select Recheck in the Recovery Guruto rerun the Recovery Guru and to ensure that the problem has been corrected.


7 Replace the cover, if needed.

End Of Procedure


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Chapter 3

Troubleshooting and Recovery

This chapter provides procedures for diagnosing and correcting drive module problems.


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Troubleshooting and Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


Troubleshooting the Drive Module

The storage management software provides the best way to monitor the drive module,

diagnose a problem, and recover from a hardware failure. You should run the storage

management software continuously and check the status of the disk subsystem frequently.

Use the following procedure to check the status and identify a problem with the drive

module.

1 Open the Array Management Window for this disk subsystem.

2 Select the component button for each module in this disk subsystem and view thestatus of each of the components.


3 Does any component have a Needs Attention status?

Yes Go to step 4. No All components are Optimal. Go to step 6.

4 Select the Recovery Guru toolbar button. Perform the procedure in the Recovery Guruto correct the problem. The Recovery Guru may direct you to replace the failed

component. If so, go to step 5.

5 Remove covers and turn off the alarm, if needed.

6 Check the lights on the front and back of the module.


7 Are any amber lights on? Yes Locate and troubleshoot the failed components. Figure 3-1and Table 3-1 and

Figure 3-2 on page 3-4 and Table 3-2 on page 3-4 show the locations of indicator

lights and provide information for interpreting those lights.

No You are finished with this procedure. If you are still experiencing a problemwith this disk subsystem, create, save, and print a disk subsystem profile. This

information may be helpful when troubleshooting a disk subsystem problem. Then,

call technical support for assistance.

End Of Procedure


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Figure 3-1 Drive Module Lights Front View

Table 3-1 Drive Module Lights Front View

Location Component Light Color Normal Status Problem Status Procedure

Drives

1 Drive Active Green On (not flashing) - no

data is being processed

Flashing - data is being

processed

Off page 4-2

2 Drive Fault Amber Off

Flashing - drive,

volume, or disksubsystem locatefunction

On (not flashing)

Global

3 Global Power Green On Off page 2-13

4 Global Fault Amber Off On Recovery

Guru

procedure


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Recovering from an Overheated Power Supply

Each module contains two power supplies. Each power supply contains a built-in

temperature sensor designed to prevent it from overheating. Under normal operating

conditions, with an ambient air temperature range of 5

C to 40

C (40

F to 104

F), thefans in the module maintain a proper operating temperature inside the module.

If the internal temperature rises above 70 C (158 F), the power supply shuts down

automatically. If both power supplies shut down because of overheating, the module has

no power and all indicator lights are off.

The following factors can cause the power supplies to overheat.

An unusually high room temperature

Fan failures in the fan/communications module

Defective circuitry in the power supply

Blocked air vents

Failures in other devices in the configuration or cabinet

If a fan failure causes overheating, the Fault light on the module turns on. The Fan Fault

light and the Power Supply Fault light on the back of the module also turn on. Figure 3-2

shows the location of these lights.

If the module temperature exceeds 45 C (113 F), the storage management software

displays a Needs Attention icon in the Array Management Window.

If event monitoring is enabled, and event notification is configured, the software also

issues one of two critical problem notifications.

Ifone power supply shuts down, the storage management software displays a NeedsAttention status in the Array Management Window.

Ifboth power supplies shut down, the module shuts down, and the storage managementsoftware displays a Not Responding status in the Array Management Window.

Procedure

Use the following procedure to resume normal operation after a power supply shutdown.

Figure 3-3 on page 3-7 shows the location of the power switches.

CAUTION Risk of damage from overheating. The power supplies automatically shutdown when the air temperature inside the cabinet reaches 70 C (158 F). If

the power supplies shut down, immediately remove all cabinet panels to help

cool the cabinet air temperature and prevent damage to the modules.


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10 Check the status of each module and its components.

a Note the status of the indicator lights on the front of the modules.A green light indicates a normal status; amber lights indicate a hardware fault.


c Select the appropriate components button for each module in the Physical View ofthe Array Management Window to view the status of its components.



Yes Go to step 13.

No Go to step 12.




If the Recovery Guru directs you to replace a failed component, locate and

troubleshoot that component. Figure 3-1 on page 3-3, Table 3-1 on page 3-3,

Figure 3-2 on page 3-4 and Table 3-2 on page 3-4 show the locations of the

modules indicator lights.

c When the procedure is completed, rerun the Recovery Guru to ensure that theproblem has been corrected by selecting Recheck in the Recovery Guru.


13 Replace the cover on the array module, if applicable.

End Of Procedure




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Setting the Tray ID Switch

If a Tray ID conflict is indicated, use the following procedure to set the Tray ID switch.

Figure 3-4 shows the location of the Tray ID switch.

CAUTION Electrostatic discharge damage to sensitive components. To preventelectrostatic discharge damage to the module, use proper antistatic protection

when handling any module component.

IMPORTANT Each module must have its own unique Tray ID.

1 Put on antistatic protection.

2 Locate the Tray ID switch on the back of the module between the power supplies.

3 Remove the screw and the switch cover.

4 Set the tray ID switch to the desired switch setting.

The settings for each Tray ID digit (X10 and X1) range from 0 through 7.

Recommended unique IDs range from 01 through 77

5 Replace the switch cover and tighten the screw to secure it into place.

End Of Procedure


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Figure 3-4 Setting the Tray ID Switch

1. Cover Plate2. Screw

3. Tray ID Switch


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Verifying the Link Rate Setting

If a link rate problem is indicated, use the following procedure to verify the Link Rate

setting . Figure 3-5 shows the location of the Link Rate Switch.


when handling the module components.


2 Locate the Link Rate switch on the back of the module, located between the twopower supplies

3 Remove the screw and the switch cover.

4 Verify that the Link Rate Switch is set to 2 Gb/s.

The Link Rate Switch is not active because the link rate is pre-set to 2 Gb/s at the

factory.

5 Replace the switch cover and tighten the screw to secure it into place.

6 If applicable, repeat for all other modules in the disk subsystem.

End Of Procedure


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Figure 3-5 Verifying the Link Rate Setting

75112

4

3

2

1

1. Cover plate

2. Screw

3. Link Rate Switch

4. 2 Gb/s Link Rate Light


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Chapter 4

Replacing a Failed Component

This chapter provides procedures for replacing failed components in an FLA200 drive

module, including drives, fans, ESMs, and power supplies.

Any of the procedures in this chapter can be performed as hot a swap procedure.Hot swap

refers to the ability to remove and replace a drive module component while the drive

module is processing I/O activity.

In a fully-configured drive module, each component is redundant. If any redundant

components fails, and the module has been configured for data redundancy, the

component can be replaced (hot-swapped) without powering off the drive module and

without interrupting data processing.

Before using the procedures in this chapter, perform the appropriate troubleshooting steps

described in Chapter 3, Troubleshooting and Recovery and in the Recovery Guru.


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Replacing a Failed Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


Replacing a Drive

Use the following procedure to replace a drive in a drive module. Figure 4-1 illustrates

removing and inserting a drive.

Tools and Equipment

Antistatic protection

Replacement drive

Procedure

CAUTION Potential data loss or data corruption. Never insert a drive into a drivemodule without first confirming the drive firmware level. Inserting a drive

with the incorrect firmware level may cause data loss or data corruption.Contact technical support for information on supported drive firmware levels.

CAUTION Risk of data loss and permanent damage. Magnetic fields may destroy alldata on a disk drive and cause irreparable damage to its circuitry. To prevent

data loss and damage to disk drives, always keep drive modules and

individual drives away from magnetic devices.

CAUTION Speed requirement for a mixed configuration. In a configuration that uses

various models of control modules, array modules, or drive modules, all

modules must be operating at the same speed. For model-specific restrictions,

refer to the Product Release Notes.

1 If needed, use the storage management software to create, save, and print a new disksubsystem profile.

2 Did the Recovery Guru direct you to replace a failed drive?

Yes Go to step 3.

No Run the Recovery Guru to identify the failed component,

and then go to step 3.

3 Mute the alarm, if needed. (For the procedure, refer to Chapter 2.)

4 Remove the back cover, if needed. (For the procedure, refer to Chapter 2.)


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CAUTION Electrostatic discharge damage to a sensitive component. To preventelectrostatic discharge damage to a component of a module, use proper

antistatic protection when handling any component.


CAUTION Potential damage to drives. Bumping a disk drive against anothersurface may damage the drive mechanism or connectors. To prevent

damage when removing or installing a drive, always place your hand

under the drive to support its weight.

6 Unpack the new drive.

Set the new drive on a dry, level surface, away from magnetic fields. Save all packing

materials in case you need to return the drive.

CAUTION Potential data loss. Removing a drive that has not failed may cause dataloss. To prevent data loss, remove only a failed drive that has a Fault

(amber) light on or has a Failed status in the storage management

software.

7 Check the Fault lights on the front of the module to identify the failed drive. If a faultis detected, the amber Fault light will be on.

8 Lift the locking lever and remove the failed drive.

Figure 4-1 Replacing a Drive

1. Locking Lever

2. Drive


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IMPORTANT If you accidentally remove an active drive, wait at least 30 seconds andthen reinstall it. Refer to your storage management software

documentation for the recovery procedure.

9 Wait 30 seconds for the storage management software to recognize that the drive hasbeen removed.

10 Slide the new drive all the way into the empty slot and close the locking lever.

As the drive spins up, the Fault light may flash intermittently. A flashing Active light

indicates that data is being restored to the new drive.

IMPORTANT Depending on your configuration, the disk subsystem may automaticallyreconstruct data to the new drive. If the disk subsystem uses hot spares, it

may have to complete reconstruction on the hot spare before it copies the

data to the replaced drive. This may increase the time required tocomplete this procedure.

11 Based on the status of the Active and Fault lights, choose one of the following steps.(Refer to Chapter 3 for the location and function of indicator lights.)

Active light is illuminated andFault light is off Go to step 13.

Active light is off The drive may be installed incorrectly. Remove the drive, wait30 seconds, and then reinstall it. When finished, go to step 12.

Fault light is illuminated The new drive may be defective. Replace it with

another new drive, and then go to step 12.

12 Is the problem corrected?

Yes Go to step 13.

No Contact technical support.

13 Remove the antistatic protection.

14 Bring the new drive back online using the storage management software.

15 Complete any remaining Recovery Guru procedures, if needed.

16 Check the status of each module in the disk subsystem.


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Yes Select the Recovery Guru toolbar button in the Array Management Windowand complete the recovery procedure. If a problem is still indicated, contact

technical support.

No Go to step 18.

18 Create, save, and print a new disk subsystem profile.

End Of Procedure


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Replacing a Fan

Use the following procedure to replace a fan in a drive module. Figure 4-2 illustrates

removing and inserting a fan unit.

CAUTION Potential damage to a component. To prevent damage from overheating,replace a failed fan within 15 minutes of its failure. If replacing it will take

longer than 15 minutes, stop all I/O activity to the drive module and turn off

the power.

Tools and Equipment


Replacement fan

Procedure


2 Did the Recovery Guru direct you to replace a failed fan?

Yes Go to step 3.

No Run the Recovery Guru to identify the failed component. Go to step 3.






6 Unpack the new fan.

Set the new fan on a dry, level surface. Save all packing materials in case you need to

return the fan.

7 If the storage management software instructs you to do so, turn off both powerswitches on the module. Otherwise, the power should remain on.

8 Check the Fault lights to locate the failed fan. If a fault is detected, the amber Faultlight will be on.


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9 Slide the latch left or right (up or down on a deskside model) on the failed fan tounlock the component, and then pull on the knob to remove the failed fan.

10 Slide the new fan all the way into the empty slot, until it snaps into place.

Figure 4-2 Replacing a Fan

11 If you turned off the power in step 7, turn it back on.

12 Based on the status of the fan Fault light, choose one of the following steps.

Fault light is illuminated The fan may be installed incorrectly. Reinstall the fan,and then go to step 13.

Fault light is off Go to step 14.13 Is the problem corrected?

Yes Go to step 14.




16 Complete the remaining Recovery Guru procedures, if needed.

17 Check the status of every module in the disk subsystem.

1. Knob

2. Fault Light

3. Latch

4. Power Switch


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Yes Select the Recovery Guru toolbar button in the Array Management Windowand complete the recovery procedure. If a problem is indicated, contact technical

support.

No Create, save, and print a new disk subsystem profile.

End Of Procedure


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Replacing an Environmental Services Monitor

Use the following procedure to replace an environmental services monitor (ESM) in a

drive module. Figure 4-3 on page 4-10 illustrates removing and inserting an ESM.

Tools and Equipment


Replacement ESM

Procedure

1 If needed, use the storage management software to create, save, and print a newdisk subsystem profile.

2 Did the Recovery Guru direct you to replace a failed ESM? Yes Go to step 3.

No Run the Recovery Guru to identify the failed component, and thengo to step 3.



CAUTION Electrostatic discharge damage to sensitive components. To preventelectrostatic discharge damage to the module, use proper antistatic

protection when handling the module components.


6 Unpack the new ESM, and verify that it is the same type of ESM as the one you arereplacing. If it is not, contact technical support.

Set the new ESM on a dry, level surface. Save all packing materials in case you need

to return the ESM.

7 Stop all I/O activity to the drive module.

8 If the storage management software instructs you to do so, turn off both power

switches on the drive module. Otherwise, leave the power on.

9 Check the Fault lights to locate the failed ESM. If a fault is detected, the amber Faultlight will be on.


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CAUTION Potential data loss or degraded performance. To prevent data loss,degraded performance, or damaged cables, do not twist, fold, pinch, or step

on fiber optic cables. Do not bend cables tighter than a 2-inch radius.

10 Disconnect the interface cables and any SFP transceivers from the failed ESM. Figure 4-5 on page 4-16 shows an SFP.

11 Push down on the latch of the failed ESM, grasp the pull rings on the locking levers, andpull the ESM out of the drive module.

12 Set the Tray ID switch on the new ESM to the same Tray ID as the failed ESM.

13 Slide the new ESM into the empty slot and close both levers.

14 Reconnect the SFP transceivers and interface cables to the ESM. Figure 4-5 on page 4-16 shows an SFP.

15 If applicable, turn on the power and wait for the drives to spin up.

Figure 4-3 Replacing an Environmental Services Monitor

16 Based on the status of the indicator lights, choose one of the following steps.

One or more green lights are on andFault light is off Go to step 17.

All green lights are offor Fault light is illuminated Verify that the ESM is

installed correctly and that all interface cables are secure. Reinstall the ESM, and thengo to step 17.

17 Did reinstalling the ESM correct the problem?

Yes Go to step 18.


1. ESM2. Locking Lever

3. Pull Ring

4. Latch

5. Power Switch


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21 Check the status of each of the modules in the disk subsystem.

22 Do any components have a Needs Attention status?


technical support.

No Create, save, and print a new disk subsystem profile.

End Of Procedure


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Replacing a Power Supply

Use the following procedure to replace a power supply in a drive module. Figure 4-4

illustrates removing and inserting a power supply.

Tools and Equipment


Replacement power supply

Procedure


2 Did the Recovery Guru direct you to replace a failed power supply? Yes Go to step 4.

No Run the Recovery Guru to identify the failed component, andthen go to step 4.



3 Put on antistatic protection

4 Mute the alarm, if needed. (Refer to Chapter 2 for the procedure.)

5 Remove the back cover, if needed. (Refer to Chapter 2 for the procedure.)

6 Unpack the new power supply.

Set the new power supply on a dry, level surface. Save all packing materials in case

you need to return it.

7 If necessary, turn off the power switch on the new power supply.

8 Check the Fault light to locate the failed power supply. If a fault is detected, the amberFault light will be on.

WARNING Risk of electrical shock. To prevent the risk of electrical shock, alwaysturn off the power switch and unplug the power cord before removing or

installing a power supply.


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9 Turn off the power switch, and unplug the power cord from the failed power supply.

10 Squeeze the pull ring on the failed power supply to release the lever. Open the lever,and remove the power supply.

11 Verify that the lever on the new power supply opens in the same direction as the oneyou just removed. If it does not, move the lever to the other pivot post.

12 Slide the new power supply into the empty slot, and close the lever.

13 Plug in the power cord and turn on the power.

14 Check the Power and Fault light on the new power supply.

Figure 4-4 Replacing a Power Supply

15 Choose one of the following steps, based on the status of the Power and Fault lights:

Power light is offor Fault light is illuminated The power supply may beinstalled incorrectly. Reinstall the power supply, and then go to step 16 on page 4-

14.

Power light is illuminated andFault light is off Go to step 17 on page 4-14.

1. Pull Ring

2. Locking Lever

3. Power Cord Connector

4. Power Switch

5. Fault Light

6. Power Light

7. Pivot Post


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Yes Go to step 17.





20 Check the status of each module in the disk subsystem.

21 Do any components have a Needs Attention status?


technical support.

No Go to step 22.


End Of Procedure


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Replacing an SFP Transceiver

Use the following procedure to replace a Small Form-factor Pluggable (SFP) transceiver

on the drive module. The SFP transceiver shown in this procedure may look different from

those you are using, but the difference will not affect transceiver performance. Figure 4-5on page 4-16 illustrates installing an SFP transciever.

Tools and Equipment


Replacement SFP transceiver

Procedure

1 If needed, use the storage management software to create, save, and print a new disk

subsystem profile.

2 Did the Recovery Guru direct you to replace a failed SFP transceiver?

Yes Go to step 3.

No Run the Recovery Guru to identify the failed component, andthen go to step 3.

3 Mute the alarm, if needed. (Refer to Chapter 2 for the procedure.)

4 Remove the back cover, if needed. (Refer to Chapter 2 for the procedure.)


when handling the module components.


6 Unpack the new SFP transceiver. Verify that it is the same type of transceiver youare replacing. If it is not, contact technical support.

Set the new SFP transceiver on a dry, level surface. Save all packing materials in case

you need to return the SFP transceiver.

7 Check the Fault lights to locate the failed SFP transceiver. If a fault is detected, theamber Fault light will be.


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CAUTION Potential data loss or degraded performance. Do not twist, bend, fold,pinch, or step on fiber optic cables. Do not bend the cables tighter than a 2-

inch radius. Doing so can cause data loss, degraded performance, or damaged

cables.

CAUTION Potential data loss. Removing an SFP transceiver that has not failed cancause data loss. To prevent data loss, remove only the component that has a

failed status in the storage management software.

8 Disconnect the interface cables from the SFP transceiver.

9 Remove the failed SFP transceiver.

10 Insert the new SFP transceiver into the connector on the ESM.

11 Reconnect the interface cable.

12 Check the Bypass and Fault lights for the new SFP transceiver.

Figure 4-5 Replacing an SFP Transceiver

1. Fiber Optic Cable

2. SFP Transceiver

3. Interface Connector

4. Bypass Light

5. Fault Light

6. ESM


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13 Based on the status of the Bypass and Fault lights, choose one of the following steps:

Bypass light or Fault light is illuminated Reinstall the SFP transceiver andcables. Verify that the SFP transceiver and cables are securely connected, and then

go to step 14.

Bypass light andFault light are off Go to step 15.


Yes Go to step 15.





18 Check the status of each disk subsystem module.


Yes Select the Recovery Guru toolbar button in the Array Management Window,and complete the recovery procedure. If a problem is still indicated, contact

technical support.

No Go to step 20.


End Of Procedure


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Chapter 5

Upgrading and Relocating the Drive Module

This chapter provides procedures for upgrading or modifying the FLA200 drive module.

The procedures include adding a drive to an empty drive slot and replacing drives with

greater capacity drives.


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Upgrading and Relocating the Drive Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


Upgrade Requirements

You can upgrade a drive module for greater storage capacity, but doing so requires careful

planning in order to prevent data loss or drive module failure. Consider the following

cautions before starting any upgrade procedure.

CAUTION Potential data loss or data corruption. Never insert a drive into a drivemodule without first confirming the drive firmware level. Inserting a drive

with the incorrect firmware level may cause data loss or data corruption.

Contact technical support for information on supported drive firmware levels.

CAUTION Potential drive module failure. Use of a non-supported drive in a drivemodule can cause the drive module to fail.

CAUTION Potential data loss or data corruption. In a configuration with mixedmodules, all modules must be operating at the same speed. Refer to the

Product Release Notes for model-specific restrictions.


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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upgrade Methods


Upgrade Methods

You can upgrade the drive module either by adding a n

fla200 drive module

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