IBM DS5020 User Manual

IBM System Storage DS5020 Storage Subsystem

Installation, User’s, and Maintenance Guide

IBM System Storage DS5020 Storage Subsystem

Installation, User’s, and Maintenance Guide

Note:

Before using this information and the product it supports, be sure to read the general information in “Safety” on page xiii and “Notices” on page 197.

First Edition (July 2009)

© Copyright International Business Machines Corporation 2009.

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Contents

Figures. . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	ix
Tables . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	xi
Safety . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	xiii
About this document . . . . . . . . . . . . . . . . . . . .	.	.	xix
Who should read this document . . . . . . . . . . . . . . . .	.	. xix
How this document is organized . . . . . . . . . . . . . . . .	.	. xix
DS5020 and DS4000-family storage subsystem installation tasks - General
overview . . . . . . . . . . . . . . . . . . . . . . . .	.	.	xx
Getting information, help, and service . . . . . . . . . . . . . . .	.	xxiv
Before you call . . . . . . . . . . . . . . . . . . . . . .	.	xxiv

Using the documentation. . . . . . . . . . . . . . . . . . . . xxiv

Finding DS5020 and DS4000-family readme files.	. . . . . . . . .	.	xxiv
Web sites . . . . . . . . . . . . . . .	. . . . . . . . .	.	xxv
Software service and support . . . . . . . .	. . . . . . . . .	.	xxvi
Hardware service and support . . . . . . . .	. . . . . . . . .	.	xxvi

Fire suppression systems . . . . . . . . . . . . . . . . . . . xxvii

Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . 1

Overview . . . . . . . . . . . . . . . . . . . .	. .	. . .	.	.	1
Base DS5020 features . . . . . . . . . . . . . .	. .	. . .	.	.	2
Operating system support . . . . . . . . . . . . .	. .	. . .	.	.	3

Fibre Channel defined. . . . . . . . . . . . . . . . . . . . . . 3 SATA defined . . . . . . . . . . . . . . . . . . . . . . . . . 3 iSCSI defined . . . . . . . . . . . . . . . . . . . . . . . . . 3 Inventory checklist . . . . . . . . . . . . . . . . . . . . . . . . 3 Product updates and support notifications . . . . . . . . . . . . . . . 5 Best practices guidelines. . . . . . . . . . . . . . . . . . . . . . 5 Storage subsystem components . . . . . . . . . . . . . . . . . . . 6

Enhanced Disk Drive Modules (E-DDMs). . . . . . . . . .	. . . . . 7
Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connectors, switch, and enclosure ID . . . . . . . . . .	. .	.	.	.	9
Setting up IP addresses for DS5020 storage controllers . . . .	.	.	.	.	11
AC power supply and fan units . . . . . . . . . . . . . .	.	.	.	.	13
Battery units . . . . . . . . . . . . . . . . . . . . .	.	.	.	.	14
SFP modules . . . . . . . . . . . . . . . . . . . .	.	.	.	.	16
Software and hardware compatibility and upgrades . . . . . . .	.	.	.	.	17
Software and firmware support code upgrades . . . . . . . .	.	.	.	.	18

Determining firmware levels . . . . . . . . . . . . . . . . . . . 18

Specifications . . . . . . . . . . . . . .	. . . . . . .	.	. .	.	19
Area requirements . . . . . . . . . . .	. . . . . . . . . . . 19
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 19
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Shipping dimensions . . . . . . . . . . . . . . . . . . . . . 20
Environmental requirements and specifications .	. . . . . . . . . . . 20
Temperature and humidity . . . . . . . . . . . . . . . . . . . 20
Altitude . . . . . . . . . . . . . . .	. . . . . . .	.	. .	.	21
Airflow and heat dissipation . . . . . . .	. . . . . . .	.	. .	.	21
Shock and vibration requirements . . . . .	. . . . . . . . . . . 22
Acoustic noise . . . . . . . . . . . . . . . . . . . . . . . 22
Electrical requirements . . . . . . . . . .	. . . . . . .	.	. .	.	23

© Copyright IBM Corp. 2009

iii

Power and site wiring requirements . . . . .	. . . . . . . . .	.	23
Heat output, airflow, and cooling . . . . . . .	. . . . . . . . .	.	24
Chapter 2. Installing the storage subsystem . . .	. . . . . . . . .	.	27

Installation overview . . . . . . . . . . .	. . . . . . . . .	. .	.	27
Handling static-sensitive devices . . . . . .	. . . . . . . . .	. .	.	29

Preparing for installation . . . . . . . . . . . . . . . .	. .	. .	.	29
Tools and hardware required . . . . . . . . . . . . . .	. .	. .	.	31

Preparing the site . . . . . . . . . . . . . . . . . . . . . . . 31

Preparing the rack cabinet. . . . . . . . . . . .	. . . . . .	.	.	32
Installing the support rails . . . . . . . . . . . . .	. . . . . .	.	.	32
Installing the DS5020 . . . . . . . . . . . . . .	. . . . . . . . 36
Removing the CRUs . . . . . . . . . . . . . . . . . . . . . . 36
Removing a controller . . . . . . . . . . . . . . . . . . . . 37
Removing an ac power supply and fan unit . . . .	. . . . . .	.	.	38
Removing an E-DDM . . . . . . . . . . . .	. . . . . .	.	.	39
Installing the DS5020 into a rack on the support rails . .	. . . . . .	.	.	40
Replacing the components . . . . . . . . . . .	. . . . . . . . 42
Replacing a controller . . . . . . . . . . . . . . . . . . . . 42
Replacing an ac power supply and fan unit . . . .	. . . . . .	.	.	43
Replacing an E-DDM . . . . . . . . . . . .	. . . . . .	.	.	44
Chapter 3. Cabling the storage subsystem. . . . . .	. . . . . .	.	.	45
Enclosure ID settings . . . . . . . . . . . . . .	. . . . . .	.	.	45
Fibre Channel loop and ID settings . . . . . . . . .	. . . . . .	.	.	46
Working with SFPs and fiber-optic cables . . . . . . .	. . . . . .	.	.	46
Handling fiber-optic cables . . . . . . . . . . .	. . . . . .	.	.	47

Installing SFP modules . . . . . . . . . . . . . . . . . . . . . 48

Removing SFP modules . . . . . . . . . . . . . . . . . .	.	.	50
Using LC-LC Fibre Channel cables . . . . . . . . . . . . . .	.	.	51
Connecting an LC-LC cable to an SFP module . . . . . . . . .	.	.	52
Removing an LC-LC Fibre Channel cable . . . . . . . . . . .	.	.	54
Connecting storage expansion enclosures to the DS5020 . . . . . . .	.	.	54
Redundant drive channel pair . . . . . . . . . . . . . . . .	.	.	55

Overview of steps to connect storage expansion enclosures to a storage subsystem. . . . . . . . . . . . . . . . . . . . . . . . . 56

DS5020 storage subsystem drive cabling topologies . . . .	. . . .	.	.	57
One DS5020 and one storage expansion enclosure . . .	. . . .	.	.	59
One DS5020 and two storage expansion enclosures . . .	. . . .	.	.	60
One DS5020 and three storage expansion enclosures . .	. . . .	.	.	62
One DS5020 and four storage expansion enclosures . . .	. . . .	.	.	63
One DS5020 and up to six storage expansion enclosures .	. . . .	.	.	64

One DS5020 and two or more storage expansion enclosures in a mixed configuration . . . . . . . . . . . . . . . . . . . . . . . 66

DS5020 storage subsystem and supported storage expansion enclosure drive cabling schemes . . . . . . . . . . . . . . . . . . . . . . 67

DS5020 storage subsystem drive cabling rules . . . . . . . . . .	.	67
One DS5020 and one EXP520 storage expansion enclosure . . . . .	. 70
One DS5020 and two EXP520 storage expansion enclosures. . . . .	. 71
One DS5020 and three or more EXP520 storage expansion enclosures		72
Storage expansion enclosure settings . . . . . . . . . . . . . .	.	78
Fibre Channel loop and ID settings . . . . . . . . . . . . . .	.	78
Storage expansion enclosure ID settings . . . . . . . . . . . .	.	78
Connecting secondary interface cables . . . . . . . . . . . . . . .	.	78
Configuring the storage subsystem . . . . . . . . . . . . . . . .	.	79
Storage subsystem management methods . . . . . . . . . . . . .	.	80

iv IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Host-agent (in-band) management method. . . . . . . .	. . .	.	.	80
Direct (out-of-band) management method . . . . . . . .	. . .	.	.	81
Connecting hosts to the DS5020 using Fibre Channel host ports	. . .	.	.	82
Fibre Channel and iSCSI connections . . . . . . . . . .	. . .	.	.	84
Fibre Channel host loop configurations . . . . . . . . . .	. . .	.	.	85
Redundant Fibre Channel host loops . . . . . . . . . .	. . .	.	.	85

iSCSI configurations . . . . . . . . . . . . . . . . . . . . . . 87

DS5020 host iSCSI configurations . . . . . . . . .	. . .	. .	.	.	88
Installing the storage subsystem configuration . . . . . .	. . .	. .	.	.	91
Cabling the ac power supply . . . . . . . . . . . . .	. . .	. .	.	.	91
Chapter 4. Operating the storage subsystem . . . . . .	. . .	. .	.	.	93
Performing the DS5020 Health Check process . . . . . .	. . .	. .	.	.	93

Web pages . . . . . . . . . . . . . . . . . . . . . . . . . 94 Hardware responsibilities . . . . . . . . . . . . . . . . . . . . 94

Powering on the storage subsystem . . . . . . . . . . . . . .	. .	.	95
Turning on the storage subsystem . . . . . . . . . . . . . .	. .	.	95
Installing the DS Storage Manager client . . . . . . . . . . . .	. .	.	97
Monitoring status through software . . . . . . . . . . . . . .	. .	.	98
Finding controller, storage expansion enclosure, and drive information	. .	.	99

Firmware updates . . . . . . . . . . . . . . . . . . . . . . . 99

Troubleshooting the storage subsystem . . . . . . . . . . . . .	.	100
Checking the LEDs . . . . . . . . . . . . . . . . . . . . . .	.	101
AC power supply and fan unit LEDs . . . . . . . . . . . . . .	.	101
Front LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 102
Battery unit LEDs . . . . . . . . . . . . . . . . . . . . .	.	103
Controller LEDs . . . . . . . . . . . . . . . . . . . . . .	.	104
Seven-segment numeric display LEDs . . . . . . . . . . . . . .	.	107
Powering off the storage subsystem. . . . . . . . . . . . . . . .	.	109
Turning off the storage subsystem . . . . . . . . . . . . . . .	.	109
Performing an emergency shutdown . . . . . . . . . . . . . .	.	112
Restoring power after an unexpected shutdown . . . . . . . . . .	.	112
Recovering from an overheated power supply and fan unit . . . . . . .	.	114
Cache memory and cache battery . . . . . . . . . . . . . . . .	.	116

Cache memory . . . . . . .	. . . . . . . . .	. . . . . .	.	116
Subsystem cache battery. . . .	. . . . . . . . .	. . . . . .	.	117

Chapter 5. Replacing components . . . . . . . . . . . . . . . . 121 Handling static-sensitive devices . . . . . . . . . . . . . . . . . . 121 Service Action Allowed Status LED . . . . . . . . . . . . . . . . . 121 Replacing a controller . . . . . . . . . . . . . . . . . . . . . . 122 Working with hot-swap E-DDMs . . . . . . . . . . . . . . . . . . 126

Installing hot-swap E-DDMs. . . . . . . . . . . . . . . . . . . 128 Replacing hot-swap E-DDMs . . . . . . . . . . . . . . . . . . 130

Replacing multiple E-DDMs . . . . . .	. .	. . . . . . .	. . . . 131
Replacing all E-DDMs at the same time	. .	. . . . . . .	. . . . 132
Replacing the E-DDMs one at a time .	. .	. . . . . . .	. . . . 134
Verifying the link rate setting . . . . . .	. .	. . . . . . .	. . . . 136
Replacing an ac power supply and fan unit .	. .	. . . . . . .	. . . . 139
Replacing a battery unit . . . . . . . .	. .	. . . . . . .	. . . . 144
Replacing an SFP module . . . . . . .	. .	. . . . . . .	. . . . 146

Replacing a midplane . . . . . .	. . . . .	. . . . . . .	.	. . . 149
Chapter 6. Hardware maintenance	. . . . .	. . . . . . .	.	. . . 153
General checkout . . . . . . .	. . . . .	. . . . . . .	. .		.	.	153
Solving problems . . . . . . .	. . . . .	. . . . . . .	. .		.	.	153

Contents v

Parts listing. . . . . . . . . . . . . . . . . . . . . . . . . . 160

Appendix A. Records . . . . . . . . . . . . . . . . . . . . . 163 Identification numbers . . . . . . . . . . . . . . . . . . . . . . 163 Storage subsystem and controller information record . . . . . . . . . . 164 Sample information record . . . . . . . . . . . . . . . . . . . 165 Installed device records . . . . . . . . . . . . . . . . . . . . . 166

Appendix B. Rack mounting templates. . . . . . . . . . . . . .	.	167
Appendix C. Specifications for non-IBM rack installation . . . . . .	.	171
General safety requirements for IBM products installed in a non-IBM rack or
cabinet . . . . . . . . . . . . . . . . . . . . . . . . .	.	171

Rack specifications . . . . . . . . . . . . . . . . . . . . . . . 173

Appendix D. Power cords . . . . . . . . . . . . . . . .	. . . . 179
Appendix E. Additional DS5020 documentation . . . . . . .	. . . . 183
DS Storage Manager Version 10 library . . . . . . . . . . .	. . . . 183
DS5020 storage subsystem library . . . . . . . . . . . . .	. . . . 184
DS4800 storage subsystem library . . . . . . . . . . . . .	. . . . 185
DS4700 storage subsystem library . . . . . . . . . . . . .	. . . . 186
DS4500 storage subsystem library . . . . . . . . . . . . .	. . . . 187
DS4400 storage subsystem library . . . . . . . . . . . . .	. . . . 188
DS4300 storage subsystem library . . . . . . . . . . . . .	. . . . 189
DS4200 Express storage subsystem library . . . . . . . . . .	. . . . 190
DS4100 Storage subsystem library . . . . . . . . . . . . .	. . . . 191
DS5000 and DS4000 storage expansion enclosure documents. . .	. . . . 192
Other DS5000 and DS4000-related documents . . . . . . . .	. . . . 193
Appendix F. Accessibility . . . . . . . . . . . . . . . .	. . . . 195

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . 197 Important notes . . . . . . . . . . . . . . . . . . . . . . . . 198 Particulate contamination. . . . . . . . . . . . . . . . . . . . . 199 Documentation format . . . . . . . . . . . . . . . . . . . . . . 199 Electronic emission notices . . . . . . . . . . . . . . . . . . . . 200

Federal Communications Commission (FCC) statement . . . . . . . .	200
Industry Canada Class A emission compliance statement . . . . . . . .	200
Avis de conformité à la réglementation d’Industrie Canada . . . . . . .	200
Australia and New Zealand Class A statement . . . . . . . . . . . .	200
United Kingdom telecommunications safety requirement . . . . . . . .	200
European Union EMC Directive conformance statement . . . . . . . .	201
Taiwanese Class A warning statement . . . . . . . . . . . . . . .	201
Germany Electromagnetic Compatibility Directive . . . . . . . . . . .	201
Deutschland: Einhaltung des Gesetzes über die elektromagnetische
Verträglichkeit von Geräten . . . . . . . . . . . . . . . . .	202
Zulassungsbescheinigung laut dem Deutschen Gesetz über die
elektromagnetische Verträglichkeit von Geräten (EMVG) (bzw. der EMC
EG Richtlinie 2004/108/EG) für Geräte der Klasse A . . . . . . . .	202
People's Republic of China Class A warning statement. . . . . . . . .	202
Japanese Voluntary Control Council for Interference (VCCI) statement	202
Korean Class A warning statement . . . . . . . . . . . . . . . .	202
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . .	203

vi IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Contents vii

viii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Figures

1. DS5020 hot-swap drive bays . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.Back view; controllers with two standard Fibre Channel host expansion channels . . . . . . . 10

3.Back view; controllers with two standard and two optional Fibre Channel host expansion channels 10

4.Back view; controllers with two standard Fibre Channel host expansion channels and two optional

	iSCSI host expansion channels . . . . . . . . . . . . . . . . . . . . . . . .	.	10
5.	Power supply and fan unit components for the DS5020 . . . . . . . . . . . . . . .	.	13
6.	Power supply and fan unit and airflow . . . . . . . . . . . . . . . . . . . . . .	.	14
7.	Backup battery unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	15
8.	SFP module and fiber-optic cable. . . . . . . . . . . . . . . . . . . . . . . .	.	17
9.	DS5020 dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	19
10.	DS5020 airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	22
11.	Example of cold aisle/hot aisle rack configuration . . . . . . . . . . . . . . . . . .	.	25
12.	Example of DS5020 serial number, machine type, and model number location . . . . . . .	.	28
13.	Front rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . .	.	33
14.	Rear rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . .	.	34
15.	Installing the support rails . . . . . . . . . . . . . . . . . . . . . . . . . .	.	35
16.	Removing and replacing a controller. . . . . . . . . . . . . . . . . . . . . . .	.	38
17.	Removing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . . .	.	39
18.	Removing an E-DDM CRU . . . . . . . . . . . . . . . . . . . . . . . . . .	.	39
19.	Installing the DS5020 . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	41
20.	Securing the DS5020 to the rack cabinet . . . . . . . . . . . . . . . . . . . . .	.	41
21.	Removing and replacing a controller. . . . . . . . . . . . . . . . . . . . . . .	.	42
22.	Replacing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . . .	.	43
23.	Replacing an E-DDM . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	44
24.	Storage subsystem seven-segment enclosure IDs . . . . . . . . . . . . . . . . .	.	46
25.	Bending and looping specifications for fiber-optic cables . . . . . . . . . . . . . . .	.	48
26.	SFP module and protective cap . . . . . . . . . . . . . . . . . . . . . . . .	.	50
27.	Installing an SFP module into the host port . . . . . . . . . . . . . . . . . . . .	.	50
28.	Unlocking the SFP module latch - plastic variety . . . . . . . . . . . . . . . . . .	.	51
29.	Unlocking the SFP module latch - wire variety . . . . . . . . . . . . . . . . . . .	.	51
30.	LC-LC Fibre Channel cable . . . . . . . . . . . . . . . . . . . . . . . . . .	.	52
31.	Removing fiber-optic cable protective caps . . . . . . . . . . . . . . . . . . . .	.	53
32.	Inserting an LC-LC Fibre Channel cable into an SFP module . . . . . . . . . . . . .	.	53
33.	LC-LC Fibre Channel cable lever and latches . . . . . . . . . . . . . . . . . . .	.	54
34.	Removing the LC-LC Fibre Channel cable . . . . . . . . . . . . . . . . . . . .	.	54
35.	Example of a redundant drive channel pair . . . . . . . . . . . . . . . . . . . .	.	56
36.	DS5020 storage subsystem ports and controllers . . . . . . . . . . . . . . . . . .	.	58
37.	Cabling for one DS5020 and one storage expansion enclosure . . . . . . . . . . . . .	.	59
38.	Cabling for one DS5020 and two storage expansion enclosures . . . . . . . . . . . .	.	60
39.	Incorrect cabling of one DS5020 and two storage expansion enclosures . . . . . . . . .	.	61
40.	Cabling for one DS5020 and three storage expansion enclosures . . . . . . . . . . . .	.	62
41.	Cabling for one DS5020 and four storage expansion enclosures . . . . . . . . . . . .	.	63
42.	Cabling for one DS5020 and up to six storage expansion enclosures . . . . . . . . . .	.	64
43.	Cabling for one DS5020 and up to six storage expansion enclosures . . . . . . . . . .	.	66
44.	Cabling for one DS5020 and two or more storage expansion enclosures in a mixed environment		67
45.	DS5020 drive ports connected to EXP810 ESM ports labeled 1B . . . . . . . . . . . .	.	69
46.	Cabling for one DS5020 and one EXP520 storage expansion enclosure . . . . . . . . .	.	70

47.One DS5020 and two EXP520 storage expansion enclosures behind a pair of DS5020 drive ports 71

48.One DS5020 and three EXP520 storage expansion enclosures behind a pair of DS5020 drive

ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

49.One DS5020 and four EXP520 storage expansion enclosures behind a pair of DS5020 drive ports 74

50.One DS5020 and a maximum of six EXP520 storage expansion enclosures behind a pair of

DS5020 drive ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

© Copyright IBM Corp. 2009

ix

51.	Ethernet and serial port locations on DS5020 . . . . . . . . . . . . . .	. . .	.	.	.	79
52.	Host-agent (in-band) managed storage subsystems . . . . . . . . . . . .	. . .	.	.	.	80
53.	Direct (out-of-band) managed storage subsystems . . . . . . . . . . . .	. . .	.	.	.	82
54.	Location of host cables on RAID controllers on the DS5020 . . . . . . . . .	. . .	.	.	.	83
55.	Cabling diagram for two redundant host connections. . . . . . . . . . . .	. . .	.	.	.	84
56.	Examples of redundant host direct attached Fibre Channel SAN configurations . .	. . .	.	.	.	85
57.	Example of a single SAN fabric configuration . . . . . . . . . . . . . .	. . .	.	.	.	86
58.	Example of a dual SAN fabric configuration . . . . . . . . . . . . . . .	. . .	.	.	.	86
59.	Example of two storage subsystems in a dual SAN environment . . . . . . .	. . .	.	.	.	87
60.	Example of a two-cluster configuration . . . . . . . . . . . . . . . . .	. . .	.	.	.	87
61.	Example of a single-host, multiple-port configuration . . . . . . . . . . . .	. . .	.	.	.	88
62.	Example of a multiple-host, multiple-port configuration . . . . . . . . . . .	. . .	.	.	.	89

63.Example of iSCSI and Fibre Channel hosts, multiple-port configuration . . . . . . . . . . . 89

64.Example of an incorrect configuration: Single-host, iSCSI and Fibre Channel. . . . . . . . . 90

65.Example of a multiple-host, multiple-port, multiple-switch configuration . . . . . . . . . . . 91

66.	Power supply and fan unit LEDs. . . . . . . . . . . . . . . . . . . . . . . .	.	102
67.	Front LEDs and controls . . . . . . . . . . . . . . . . . . . . . . . . . .	.	103
68.	Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	104
69.	LEDs, controls, and connectors of controllers with two standard Fibre Channel host expansion
	channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	105
70.	LEDs, controls, and connectors of controllers with two standard and two optional Fibre Channel
	host expansion channels . . . . . . . . . . . . . . . . . . . . . . . . . .	.	105
71.	LEDs, controls, and connectors of controllers with two standard Fibre Channel host expansion
	channels and two optional iSCSI host expansion channels . . . . . . . . . . . . . .	.	106
72.	Numeric display LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	108
73.	Cache Active LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	117
74.	Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	119
75.	Unlocking the SFP module latch - plastic variety . . . . . . . . . . . . . . . . . .	.	124
76.	Unlocking the SFP module latch - wire variety . . . . . . . . . . . . . . . . . .	.	124
77.	Removing a controller from the DS5020 . . . . . . . . . . . . . . . . . . . . .	.	125
78.	Installing a controller . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	125
79.	Hot-swap E-DDM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	129
80.	E-DDM CRU handle . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	129
81.	Link rate LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	137
82.	Link rate switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	138
83.	Replacing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . .	.	143
84.	Removing and replacing a battery unit from the controller chassis . . . . . . . . . . .	.	145
85.	Replacing an SFP module . . . . . . . . . . . . . . . . . . . . . . . . . .	.	148
86.	Front cage frame screw locations . . . . . . . . . . . . . . . . . . . . . . .	.	150
87.	Screws holding the top and bottom sides of the chassis to the cage frame . . . . . . . .	.	151
88.	DS5020 storage subsystem parts list . . . . . . . . . . . . . . . . . . . . . .	.	160
89.	Front rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . .	.	168
90.	Rear rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . .	.	169
91.	Top View of non-IBM Rack Specifications Dimensions. . . . . . . . . . . . . . . .	.	174
92.	Rack specifications dimensions, top front view . . . . . . . . . . . . . . . . . .	.	175
93.	Rack specifications dimensions, bottom front view . . . . . . . . . . . . . . . . .	.	175

x IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Tables

1.	Where to find DS5020 and DS4000-family installation and configuration procedures . . . .	.	. xx
2.	DS5020 weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	20
3.	DS5020 component weights. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.	DS5020 shipping carton dimensions. . . . . . . . . . . . . . . . . . . . . . . . 20
5.	Temperature and humidity requirements for storage subsystem when in storage or in transit			21
6.	Temperature and humidity requirements for storage subsystem in a typical Information Technology
	(IT) or office environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.	DS5020 altitude ranges . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	21
8.	DS5020 power and heat dissipation . . . . . . . . . . . . . . . . . . . . . .	.	.	22
9.	Random vibration power spectral density . . . . . . . . . . . . . . . . . . . .	.	.	22
10.	DS5020 sound levels . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	22
11.	DS5020 ac power requirements . . . . . . . . . . . . . . . . . . . . . . .	.	.	23
12.	Power supply and fan unit LEDs. . . . . . . . . . . . . . . . . . . . . . .	.	.	102
13.	Front LEDs and controls . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	103
14.	Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	104
15.	Rear controller LEDs, controls, and connectors . . . . . . . . . . . . . . . . .	.	.	106
16.	Host and drive channel LED definitions . . . . . . . . . . . . . . . . . . . .	.	.	107
17.	Numeric display diagnostic codes . . . . . . . . . . . . . . . . . . . . . .	.	.	108
18.	Drive LED activity . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	128
19.	Data transfer rates for drive modules . . . . . . . . . . . . . . . . . . . . .	.	.	137
20.	Symptom-to-FRU index . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	154
21.	Parts listing (DS5020 storage subsystem) . . . . . . . . . . . . . . . . . . .	.	.	161
22.	Storage subsystem and controller information record . . . . . . . . . . . . . . .	.	.	164
23.	Sample information record . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	165
24.	Hard disk drive record . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	166
25.	IBM power cords . . . . . . . . . . . . . . . . . . . . . . . . . . . .	.	.	179
26.	DS Storage Manager Version 10 titles by user tasks . . . . . . . . . . . . . . .	.	.	183
27.	DS5020 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	184
28.	DS4800 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	185
29.	DS4700 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	186
30.	DS4500 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	187
31.	DS4400 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	188
32.	DS4300 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	189
33.	DS4200 Express storage subsystem document titles by user tasks . . . . . . . . . .	.	.	190
34.	DS4100 storage subsystem document titles by user tasks . . . . . . . . . . . . .	.	.	191
35.	DS5000 and DS4000 storage expansion enclosure document titles by user tasks . . . .	.	.	192
36.	DS5000 and DS4000-related document titles by user tasks . . . . . . . . . . . . .	.	.	193
37.	DS Storage Manager alternate keyboard operations . . . . . . . . . . . . . . .	.	.	195
38.	Limits for particulates and gases . . . . . . . . . . . . . . . . . . . . . .	.	.	199

© Copyright IBM Corp. 2009

xi

xii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Safety

The caution and danger statements that this document contains can be referenced in the multilingual IBM® Safety Information document that is provided with your IBM System Storage™ DS5020 Storage Subsystem. Each caution and danger statement is numbered for easy reference to the corresponding statements in the translated document.

vDanger: These statements indicate situations that can be potentially lethal or extremely hazardous to you. A danger statement is placed just before the description of a potentially lethal or extremely hazardous procedure, step, or situation.

vCaution: These statements indicate situations that can be potentially hazardous to you. A caution statement is placed just before the description of a potentially hazardous procedure step or situation.

vAttention: These notices indicate possible damage to programs, devices, or data. An attention notice is placed just before the instruction or situation in which damage could occur.

Before installing this product, read the following danger and caution notices.

© Copyright IBM Corp. 2009

xiii

Statement 1:

DANGER

Electrical current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.

vConnect all power cords to a properly wired and grounded electrical outlet.

vConnect to properly wired outlets any equipment that will be attached to this product.

vWhen possible, use one hand only to connect or disconnect signal cables.

vNever turn on any equipment when there is evidence of fire, water, or structural damage.

vDisconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.

vConnect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices.

To Connect:		To Disconnect:
1.	Turn everything OFF.	1.	Turn everything OFF.
2.	First, attach all cables to devices.	2.	First, remove power cords from outlet.
3.	Attach signal cables to connectors.	3.	Remove signal cables from connectors.
4.	Attach power cords to outlet.	4.	Remove all cables from devices.
5.	Turn device ON.

xiv IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Statement 2:

CAUTION:

When replacing the lithium battery, use only an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.

Do not:

vThrow or immerse into water

vHeat to more than 100° C (212° F)

vRepair or disassemble

Dispose of the battery as required by local ordinances or regulations.

Statement 3:

CAUTION:

When laser products (such as CD-ROMs, DVD drives, fiber-optic devices, or transmitters) are installed, note the following:

vDo not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

vUse of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure.

DANGER

Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

a

Class 1 Laser statement

Safety xv

Class 1 Laser Product

Laser Klasse 1

Laser Klass 1

Luokan 1 Laserlaite

Apparell À Laser de Calsse 1

IEC 825-11993 CENELEC EN 60 825

Statement 4:

≥ 18 kg (39.7 lb)	≥ 32 kg (70.5 lb)	≥ 55 kg (121.2 lb)

CAUTION:

Use safe practices when lifting.

Statement 5:

CAUTION:

The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

2 1

xvi IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Statement 8:

CAUTION:

Never remove the cover on a power supply or any part that has the following label attached.

Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician.

Statement 30:

CAUTION:

To reduce the risk of electric shock or energy hazards:

vThis equipment must be installed by trained service personnel in a restricted-access location, as defined by the NEC and IEC 60950-1, First Edition, The Standard for Safety of Information Technology Equipment.

vConnect the equipment to a reliably grounded safety extra low voltage (SELV) source. An SELV source is a secondary circuit that is designed so that normal and single fault conditions do not cause the voltages to exceed a safe level (60 V direct current).

vThe branch circuit overcurrent protection must be rated 20 A.

vUse 12 American Wire Gauge (AWG) or 2.5 mm2 copper conductor only, not exceeding 4.5 meters in length.

vIncorporate a readily available approved and rated disconnect device in the field wiring.

CAUTION:

This unit has more than one power source. To remove all power from the unit, all dc MAINS must be disconnected.

Safety xvii

Cable Warning:

WARNING: Handling the cord on this product or cords associated with accessories sold with this product, will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.

xviii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

About this document

This document provides instructions for installing and customizing the configuration of your IBM System Storage DS5020 storage subsystem. It also provides maintenance procedures and troubleshooting information.

Who should read this document

This document is intended for system operators and service technicians who have extensive knowledge of Fibre Channel and network technology.

How this document is organized

Chapter 1, “Introduction,” on page 1 describes the IBM System Storage DS5020 storage subsystem. This chapter includes an inventory checklist and an overview of the storage subsystem features, operating specifications, and components.

Chapter 2, “Installing the storage subsystem,” on page 27 contains information about how to install the DS5020 storage subsystem in a standard rack cabinet and setting the interface options.

Chapter 3, “Cabling the storage subsystem,” on page 45 contains Fibre Channel and power cabling information for the DS5020 storage subsystem.

Chapter 4, “Operating the storage subsystem,” on page 93 contains information about how to turn the power to the DS5020 storage subsystem on and off, recover from an overheated power supply and fan unit, troubleshoot, and interpret LEDs.

Chapter 5, “Replacing components,” on page 121 contains step-by-step instructions about how to install or remove customer replaceable units (CRUs), such as Enhanced Disk Drive Modules (E-DDMs), power supply and fan units, RAID controllers, battery units, midplane, and Small Form-factor Pluggable transceiver (SFP) modules.

Chapter 6, “Hardware maintenance,” on page 153 describes problems and symptoms that are specific to the DS5020 storage subsystem. It also provides a parts list for the DS5020 storage subsystem.

Appendix A, “Records,” on page 163 provides a table that you can use to record and update important information about your DS5020 storage subsystem, including serial number and device records.

Appendix B, “Rack mounting templates,” on page 167 provides the rack mounting templates for installation of the DS5020 storage subsystem. If you want to tear out the templates from the document for use during installation, use these copies of the templates.

Appendix D, “Power cords,” on page 179 lists power cord information for the

DS5020 storage subsystem.

Appendix E, “Additional DS5020 documentation,” on page 183 lists additional

DS5020 documents.

Appendix F, “Accessibility,” on page 195 details accessibility information.

© Copyright IBM Corp. 2009

xix

DS5020 and DS4000-family storage subsystem installation tasks - General overview

For educational information about the DS5020 and other IBM System Storage products, go to http://ibmdsseriestraining.com/.

Table 1 provides a sequential list of many installation and configuration tasks that are common to most DS5020 and DS4000-family configurations. When you install and configure your storage subsystem, refer to this table to find the documentation that explains how to complete each task.

Table 1. Where to find DS5020 and DS4000-family installation and configuration procedures

	Installation task	Where to find information or procedures
1	Plan the installation	v DS Storage Manager Version 10 Installation and Host
		Support Guide
		v DS4100 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4200 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4300 Storage Subsystem Installation, User's, and
		Maintenance Guide
		v DS4400 Fibre Channel Storage Server Installation and
		Support Guide
		v DS4500 Storage Subsystem Installation, User's, and
		Maintenance Guide
		v DS4700 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4800
		v DS4800 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4700 and DS4200, Sections 2, 3, and 4 also for
		installing the EXP810 and EXP420
		v IBM System Storage DS5000 Quick Start Guide
		v DS5000 Installation, User’s, and Maintenance Guide
		v IBM System Storage DS5020 Quick Start Guide
		v DS5020 Installation, User’s, and Maintenance Guide

xx IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Table 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued)

	Installation task	Where to find information or procedures
2	Mount the DS5020	v DS4800 Storage Subsystem Installation, User’s, and
	storage subsystem in	Maintenance Guide
	the rack
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4800
		v DS4700 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4700 and DS4200, Sections 2, 3, and 4 also for
		installing the EXP810 and EXP420
		v DS4400 and DS4500 Rack Mounting Instructions
		v DS4300 Rack Mounting Instructions
		v DS4200 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4100 Storage Subsystem Installation, User’s and
		Maintenance Guide
		v IBM System Storage DS5000 Installation, User’s, and
		Maintenance Guide
		v IBM System Storage DS5020 Installation, User’s, and
		Maintenance Guide
3	Mount the storage	v DS4000 EXP100 Storage Expansion Unit Installation, User’s
	expansion unit in the	and Maintenance Guide
	rack
		v DS4000 EXP420 Storage Expansion Enclosures Installation,
		User’s, and Maintenance Guide
		v DS4000 EXP700 and EXP710 Storage Expansion Enclosures
		Installation, User’s, and Maintenance Guide
		v DS4000 EXP810 Storage Expansion Enclosures Installation,
		User’s, and Maintenance Guide
		v FAStT EXP500 Installation and User’s Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4700 and DS4200, Sections 2, 3, and 4 also for
		installing the EXP810 and EXP420
		v DS5000 Installation, User’s, and Maintenance Guide
		v DS5020 Installation, User’s, and Maintenance Guide

About this document xxi

Table 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued)

	Installation task	Where to find information or procedures
4	Route the storage	v DS4100 Storage Subsystem Installation, User’s, and
	expansion unit Fibre	Maintenance Guide
	Channel cables
		v DS4200 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4300 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4400 Fibre Channel Cabling Instructions
5	Route the host	v DS4500 Storage Subsystem Installation, User’s, and
	server Fibre Channel	Maintenance Guide
	cables	v DS4700 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4700 and DS4200, Sections 2, 3, and 4 also for
		installing the EXP810 and EXP420
		v DS4800 Storage Subsystem Installation, User’s, and
6	Power up the
	subsystem	Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4800
		v DS5000 Installation, User’s, and Maintenance Guide
		v DS5020 Installation, User’s, and Maintenance Guide
7	Configure DS5020	v DS Storage Manager Version 10 Installation and Host
	network settings	Support Guide
		v DS4100 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4200 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4300 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4400 Fibre Channel Storage Server Installation and
		Support Guide
		v DS4500 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4700 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4700 and DS4200, Sections 2, 3, and 4 also for
		installing the EXP810 and EXP420
		v DS4800 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage Quick Start Guide, Quick reference for
		the DS4800
		DS5000 Installation, User’s, and Maintenance Guide
		DS5020 Installation, User’s, and Maintenance Guide

xxii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Table 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued)

	Installation task	Where to find information or procedures
8	Zone the fabric	v DS Storage Manager Version 10 Installation and Host
	switch (SAN-attached	Support Guide
	only)
		v DS4000 Storage Manager Copy Services Guide (describes
		switch zoning for the Remote Mirror Option)
		v See also the documentation provided by the switch
		manufacturer.
9	Install DS Storage	v DS Storage Manager Version 10 Installation and Host
	Manager software on	Support Guide
	the management
		v DS Storage Manager online help (for post-installation tasks)
	station

10Install host software (failover drivers) on host server

11Start DS Storage Manager

12Set the DS Storage Manager clock

13Set the DS Storage Manager host default type

14	Verify DS5020	v DS4100 Storage Subsystem Installation, User’s, and
	subsystem health	Maintenance Guide
		v DS4200 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4300 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4400 Fibre Channel Storage Server Installation and
		Support Guide
		v DS4500 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4700 Express Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v DS4800 Storage Subsystem Installation, User’s, and
		Maintenance Guide
		v IBM System Storage DS5020 Installation, User’s, and
		Maintenance Guide
15	Enable DS Storage	Copy Services premium features
	Manager premium
		DS4000 Storage Manager Copy Services Guide
	feature keys
		FC/SATA Intermix premium feature
		v DS4000 Fibre Channel and Serial ATA Intermix
		Premium Feature Installation Overview
		v FDE Best Practices Guide
		Storage Partitioning (and general premium features
		information)
		DS Storage Manager Version 10 Installation and Host
		Support Guide

About this document xxiii

Table 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued)

	Installation task	Where to find information or procedures
16	Configure arrays and	v DS Storage Manager Version 10 Installation and Host
	logical drives	Support Guide
17	Configure host	v DS Storage Manager online help
	partitions
18	Verify host access to
	DS5020 storage
19	Add storage capacity	IBM System Storage Migration Guide
	or configure
	migration of drives

Getting information, help, and service

If you need help, service, or technical assistance or just want more information about IBM products, you will find a wide variety of sources available from IBM to assist you. This section contains information about where to go for additional information about IBM and IBM products, what to do if you experience a problem with your system, and whom to call for service, if it is necessary.

Before you call

Before you call, take these steps to try to solve the problem yourself:

vCheck all cables to make sure that they are connected.

vCheck the power switches to make sure that the system is turned on.

vUse the troubleshooting information in your system documentation, and use the diagnostic tools that come with your system.

vCheck for technical information, hints, tips, and new device drivers at the IBM support Web site pages that are listed in this section.

vUse an IBM discussion forum on the IBM Web site to ask questions.

You can solve many problems without outside assistance by following the troubleshooting procedures that IBM provides in the DS Storage Manager online help or in the documents that are provided with your system and software. The information that comes with your system also describes the diagnostic tests that you can perform. Most subsystems, operating systems, and programs come with information that contains troubleshooting procedures and explanations of error messages and error codes. If you suspect a software problem, see the information for the operating system or program.

Using the documentation

Information about your IBM system and preinstalled software, if any, is available in the documents that come with your system. This includes printed books, online documents, readme files, and help files. See the troubleshooting information in your system documentation for instructions for using the diagnostic programs. The troubleshooting information or the diagnostic programs might tell you that you need additional or updated device drivers or other software.

Finding DS5020 and DS4000-family readme files

1.Go to the following Web site: www.ibm.com/systems/support/storage/disk/

xxivIBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

2.Click the link for your storage subsystem (for example, DS5020).

3.When the subsystem support page opens, click the Download tab.

4.Under the Download tab, click Storage Manager, firmware, HBA, tools, support & pubs (including readmes).

5.Click the applicable tab for the type of readme file that you are looking for:

vFirmware

vStorage Mgr

vHBA

vTools

A table displays as you click each tab.

6.In the table, click on the applicable link in the Current version and readmes column.

7.Click the link for the readme file.

Web sites

The most current information about DS5020 storage subsystems and DS Storage Manager, including documentation and the most recent software, firmware, and NVSRAM downloads, can be found at the following Web sites.

DS4000 and DS5000 Midrange Disk Systems

Find the latest information about IBM System Storage disk storage systems, including all of the DS4000 and DS5000 storage subsystems:

http://www.ibm.com/systems/support/storage/disk

IBM System Storage products

Find information about all IBM System Storage products:

http://www.ibm.com/systems/storage

Support for IBM System Storage disk storage systems

Find links to support pages for all IBM System Storage disk storage systems, including DS4000 and DS5000 storage subsystems and expansion units:

http://www.ibm.com/systems/support/storage/disk/

System Storage DS4000 and DS5000 interoperability matrix

Find the latest information about operating system and HBA support, clustering support, storage area network (SAN) fabric support, and DS Storage Manager feature support:

http://www.ibm.com/servers/storage/disk/ds4000/interop-matrix.html

Storage Area Network (SAN) support

Find information about using SAN switches, including links to user guides and other documents:

http://www.ibm.com/systems/support/storage/san

DS4000 and DS5000 technical support

Find downloads, hints and tips, documentation, parts information, HBA and

Fibre Channel support:

http://www.ibm.com/systems/support/storage/disk/

Select your storage subsystem (for example, DS5020).

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Premium feature activation

Activate a DS5020 or DS4000 premium feature by using the online tool: http://www-912.ibm.com/PremiumFeatures/jsp/keyInput.jsp

IBM publications center

Find IBM publications:

http://www.ibm.com/shop/publications/order/

Support for System p® servers

Find the latest information supporting System p AIX® and Linux® servers:

http://www.ibm.com/systems/support/supportsite.wss/

brandmain?brandind=5000025

Support for System x® servers

Find the latest information supporting System x Intel®- and AMD-based servers:

http://www.ibm.com/systems/support/supportsite.wss/

brandmain?brandind=5000008

Fix delivery center for AIX and Linux on POWER®

Find the latest AIX and Linux on POWER information and downloads:

http://www-912.ibm.com/eserver/support/fixes/fcgui.jsp

In the Product family drop-down menu, select UNIX® servers. Then select your product and fix type from the subsequent drop-down menus.

System p and AIX information center

Find everything you need to know about using AIX with System p and

POWER servers:

http://publib.boulder.ibm.com/infocenter/pseries/index.jsp?

Software service and support

Through the IBM Support Line, for a fee you can get telephone assistance with usage, configuration, and software problems. For information about which products are supported by Support Line in your country or region, go to the following Web site:

http://www.ibm.com/services/sl/products

For more information about the IBM Support Line and other IBM services, go to the following Web sites:

vhttp://www.ibm.com/services/

vhttp://www.ibm.com/planetwide/

Hardware service and support

You can receive hardware service through IBM Integrated Technology Services or through your IBM reseller, if your reseller is authorized by IBM to provide warranty service. Go to the following Web site for support telephone numbers:

http://www.ibm.com/planetwide/

In the U.S. and Canada, hardware service and support is available 24 hours a day, 7 days a week. In the U.K., these services are available Monday through Friday, from 9 a.m. to 6 p.m.

xxvi IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide

Fire suppression systems

A fire suppression system is the responsibility of the customer. The customer’s own insurance underwriter, local fire marshal, or a local building inspector, or both, should be consulted in selecting a fire suppression system that provides the correct level of coverage and protection. IBM designs and manufactures equipment to internal and external standards that require certain environments for reliable operation. Because IBM does not test any equipment for compatibility with fire suppression systems, IBM does not make compatibility claims of any kind nor does IBM provide recommendations on fire suppression systems.

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xxviii IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide