11. Use the DS Storage Manager client to place controller B online.
12. Complete any remaining Recovery Guru procedures for interconnect-battery
unit replacement, if needed.
13. Did this correct the problem?
v
Yes – Go to step 14.
v
No – If the problem has not been fixed, contact your IBM service
representative.
14. Remove the antistatic protection.
15. Install the front bezel by aligning the pins on the storage subsystem chassis
with the spring-steel retainers on the cover and then press the cover toward
the chassis until the pins snap into place.
16. Use the Subsystem Management window to check the status of all
components in the storage subsystem.
17. Do any storage subsystems have a fault (Needs Attention) status?
v
Yes – Select the Recovery Guru toolbar button in the DS Storage Manager
Subsystem Management window, and complete the recovery procedure. If
the problem persists, contact your IBM support representative.
v
No – Go to step 18.
18. Use the DS Storage Manager client software to print a new storage subsystem
profile.
Replacing a backup battery pack
Use the following procedure if the DS Storage Manager client instructs you to
replace the battery because the current battery has failed. You can also use the DS
Storage Manager client to check the status of the battery. Because write-caching is
disabled when either one of the backup battery packs fail, it is best practice to
replace the failed battery pack as soon as possible to minimize any impact due to
the disabling of the write-caching function.
Replace only the battery pack that is indicated as failed by the LEDs. You do not
need to replace both battery packs when the Battery LEDs indicate that only one
battery pack has failed.
Note:
Unlike the batteries for other DS Storage Subsystems, the Storage
Subsystem battery packs do not have set expiration dates. Do not replace
these batteries after a certain usage period.
Attention:
When you handle static-sensitive devices, take precautions to avoid
damage from static electricity. For details about handling static-sensitive devices,
see “Handling static-sensitive devices” on page 167.
Use the following procedure to replace a backup battery pack in the
interconnect-battery unit:
1. Use the DS Storage Manager client software to print a storage subsystem
profile.
2. Locate the storage subsystem that contains the interconnect-battery unit with
the failed battery by checking the Overall Configuration Needs Attention LED
on the front bezel of the storage subsystem. (Figure 121 on page 192 shows
the location of the Overall Configuration Needs Attention LED on the front
bezel.)
Chapter 5. Replacing components
191