IBM 7133 Series, Service Manual

Page: 163 / 230

Disk Drive Modules
| Note: A disk drive module is one FRU. Always exchange it as a complete FRU.
Removing a Module
Attention:
Disk drive modules are fragile. Handle them with care, and keep them well away from
strong magnetic fields.
Any slot that has no disk drive module installed must contain a dummy disk drive
module. The dummy module provides continuity of the SSA string, and ensures that
the correct airflow is maintained around the disk drive modules in the other slots.
Notes:
1. Unless you have a particular reason to do so, do not turn off the using system or the
7133 when removing disk drive modules.
| 2. The diagrams in these instructions show a 7133 Model 010. The procedure for
| Models 020, 500, and 600 is the same, except that for Models 500 and 600,
| everything is turned through 90 degrees.
|
1
If you are removing the disk drive module under concurrent maintenance (see
| “Concurrent Maintenance” on page 3-1), first ensure that no hdisk is using the pdisk
| (disk drive module) that you want to remove. Use the Configuration Verification
| service aid to determine whether the pdisk is related to an hdisk.
|
2
If the pdisk is related to an hdisk that is a RAID array, go to step 3.
| If the pdisk is related to an hdisk that is not a RAID array, make that hdisk
| unavailable to the using system, and go to step 7 on page 3-18.
| If the pdisk is not related to an hdisk, go to step 7 on page 3-18.
|
3
For fast path, type
smitty redssaraid
and press Enter.
| Otherwise:
| a. Select Change Member Disks in an SSA RAID Array from the SSA RAID
| Array menu.
| b. Select Remove a Disk from an SSA RAID Array.
Chapter 3. Removal and Replacement Procedures
3-17