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e. If the repair is successful, reinstall all of the disk drive modules and cables that were
removed in a previous steps.
f. Go to "MAP 2410: 7031-D24 or 7031-T24 repair verification" to verify the repair.
Yes
Go to step 7.
7. Reinsert the disk drive modules that you just removed, one at a time, checking for accessibility.
Can the host system access this disk drive module?
No
a. In the sequence shown, exchange the following FRUs for new FRUs. Ensure that for each
FRU exchange, you check whether you can access the disk drive module, to verify the
repair.
1) Exchange the disk drive module for a new one.
2) External SCSI cable
3) SCSI interface card assembly
4) Power supply
5) Frame assembly
b. If the repair is successful, reinstall all the disk drive modules and if removed, the SCSI
interface card assembly.
c. Go to "MAP 2410: 7031-D24 or 7031-T24 repair verification" to verify the repair.
Yes
Go to step 8.
8. Have you reinstalled all the disk drive modules?
No
Go to step 7
Yes
Go to step 9.
9. (from step 8)
Can the host system get access to all of the plugged disk drive module and enclosure services?
No
Call your support center for assistance.
a. Exchange the disk drive module for a new one.
b. Return to step 8.
Yes
Go to "MAP 2410: 7031-D24 or 7031-T24 repair verification" to verify the repair.
MAP 2410: 7031-D24 or 7031-T24 repair verification
Use this MAP to help you verify a repair after a FRU is exchanged for a new one on a 7031-D24 or
7031-T24 disk subsystem.
Attention: Do not remove power from the host system or the disk subsystem unless you are directed to
in the following procedures. Power cables and external SCSI cables that connect the disk subsystem to the
host system can be disconnected while that system is running.
1. Ensure that the DC On/Off switch of each power supply assembly is set to On.
Are all Check LEDs off?
No
Go to "MAP 2010: 7031-D24 or 7031-T24 start" on page 34.
Yes
Go to step 2.
2. Can the host system access all SCSI devices?
No
Go to "MAP 2010: 7031-D24 or 7031-T24 start" on page 34.
Yes
The repair is complete.
Go to MAP 0410: Repair checkout for system level repair verification.
42
Removal and replacement procedures
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