Connecting SAS hosts to the DCS3700 . . . 57
Overview of installing an IBM BladeCenter
configuration to connect to a DCS3700 .....59
Installing the BladeCenter configuration ....59
Connecting BladeCenter hosts to the DCS3700 . . 60
Connecting Fibre Channel hosts to the DCS3700 60
Direct-attached dual-controller connections:. . 61
SAN fabric dual-controller, redundent
connections ............63
Cabling the power supply .........65
Relocating the DCS3700 ..........65
Chapter 4. Operating the DCS3700
storage system and expansion
enclosure .............67
Performing the DCS3700 Health Check process . . 67
Hardware inspection ...........68
Powering on the DCS3700 .........68
Installing the Storage Manager Client......70
Monitoring status through software ......71
Firmware updates ...........72
Troubleshooting the storage subsystem ....72
Checking the LEDs ............73
Front LEDs .............73
Controller LEDs ............74
ESM LEDs..............76
Fan assembly LEDs...........76
AC power-supply LEDs .........77
Drive drawer LEDs...........78
Disk drive LEDs............78
Seven-segment numeric display LEDs ....79
Cache memory and cache battery .......81
Cache memory ............82
Controller cache battery .........82
Cache battery learn cycle .........82
Turning off the storage subsystem .......83
Performing an emergency shutdown ......85
Restoring power after an unexpected shutdown . . 85
Recovering from an overheated power supply . . . 86
Chapter 5. Replacing components . . . 89
Replacing components...........89
Service Action Allowed LED.........89
Working with controllers ..........89
Removing a controller ...........90
Removing and installing a cover .......91
Replacing a controller ...........91
Removing and disposing of the system-board
lithium battery .............95
Installing an optional host interface adapter . . . 96
Removing an optional host interface adapter . . . 99
Working with hot-swap DDMs .......100
Installing hot-swap hard disk drives.....101
Replacing hot-swap hard disk drives ....103
Replacing multiple DDMs ........104
Replacing all DDMs at the same time . . . 105
Replacing the drives one at a time ....107
Replacing an ac power supply........109
Replacing a battery ...........113
Replacing the memory cache DIMM ......115
Removing the DIMM ...........116
Installing the DIMM ...........117
Removing and replacing the cache backup flash
memory device .............117
Replacing the bezel ...........118
Working with environmental service modules . . 119
Replacing an ESM ............119
Replacing a fan assembly .........120
Replacing a drive drawer .........122
Chapter 6. Hardware maintenance . . 129
General checkout ............129
Solving problems ............129
Troubleshooting problems in the DCS3700
storage subsystem ...........130
Parts listing ..............136
Appendix A. Records ........139
Identification numbers ..........139
Storage subsystem and controller information
record ................140
Sample information record ........141
Installed device records ..........142
Appendix B. Rack mounting template 143
Appendix C. Specifications for
non-IBM rack installation ......147
General safety requirements for IBM products
installed in a non-IBM rack or cabinet .....147
Rack specifications ...........149
Appendix D. Power cords ......153
Appendix E. Component weights . . . 157
Notices ..............159
Trademarks ..............160
Important notes ............160
Particulate contamination .........161
Documentation format ..........162
Electronic emission notices .........162
Federal Communications Commission (FCC)
Class A Statement ...........162
Industry Canada Class A Emission Compliance
Statement .............162
Avis de conformité à la réglementation
d'Industrie Canada ..........162
Australia and New Zealand Class A Statement 162
United Kingdom telecommunications safety
requirement .............163
European Union EMC Directive Conformance
Statement .............163
Germany Electromagnetic Compatibility
Directive ..............163
Japan VCCI Council Class A Statement ....164
Japan Electronics and Information Technology
Industries Association (JEITA) Statement . . . 164
iv IBM System Storage DCS3700: Installation, User, and Maintenance Guide
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