MAP 3113

Use this MAP to resolve the following problem: Disk array is or would become degraded and parity data is out of synchronization (SRN nnnn-9027) for a PCI-X or PCIe controller.

Step 3113-1

Identify the adapter and disks by examining the hardware error log. The hardware error log can be viewed as follows:

1. Follow the steps in Examining the hardware error log and return here.
2. Select the hardware error log to view. Viewing the hardware error log, if the disk array member which corresponds to the Degraded Disk S/N has an Actual Resource of *unkwn* and is not physically present, it can be helpful to find this disk.
3. Go to Step 3113-2.

Step 3113-2

Have the adapter or disks been physically moved recently?

No

Contact your hardware service provider.

Yes

Go to Step 3113-3.

Step 3113-3

Perform only one of the following options, listed in the order of preference:

Option 1

Restore the adapter and disks back to their original configuration. See SAS resource locations to understand how to locate a disk using the Expected Resource and Actual Resource field.

After restoring the adapter and disks to their original configuration, complete only one of the following steps:

• Run diagnostics in system verification mode on the adapter:
  1. Start AIX diagnostics and select Task Selection on the Function Selection display.
  2. Select Run Diagnostics.
  3. Select the adapter resource.
  4. Select System Verification.
• Unconfigure and reconfigure the adapter by performing the following steps:
  1. Unconfigure the adapter.
     1. Start the IBM® SAS Disk Array Manager.
        1. Start AIX diagnostics and select Task Selection on the Function Selection display.
        2. Select RAID Array Manager > IBM SAS Disk Array Manager.
     2. Select Diagnostics and Recovery Options > Unconfigure an Available IBM SAS RAID Controller.
  2. Configure the adapter.
     1. Start the IBM SAS Disk Array Manager.
        1. Start Diagnostics and select Task Selection on the Function Selection display.
        2. Select RAID Array Manager > IBM SAS Disk Array Manager.
     2. Select Diagnostics and Recovery Options > Configure a Defined IBM SAS RAID Controller.
• Perform an IPL of the system or logical partition.

When the problem is resolved, see the removal and replacement procedures topic for the system unit on which you are working and do the "Verifying the repair" procedure.

Option 2

Delete the disk array, as follows:

Attention: All data on the disk array will be lost.

1. Start the IBM SAS Disk Array Manager.
   1. Start Diagnostics and select Task Selection on the Function Selection display.
   2. Select RAID Array Manager > IBM SAS Disk Array Manager.
2. Select Delete a SAS Disk Array > IBM SAS RAID Controller.
3. Select the disk array to delete.

When the problem is resolved, see the removal and replacement procedures topic for the system unit on which you are working and do the "Verifying the repair" procedure.

Option 3

Format the remaining members of the disk array, as follows:

Attention: All data on the disk array will be lost.

1. Start the IBM SAS Disk Array Manager.
   1. Start Diagnostics and select Task Selection on the Function Selection display.
   2. Select RAID Array Manager > IBM SAS Disk Array Manager.
2. Select Diagnostics and Recovery Options > Format Physical Disk Media (pdisk).

When the problem is resolved, see the removal and replacement procedures topic for the system unit on which you are working and do the "Verifying the repair" procedure.