Sun Storage 9990 System
 
Sun Storage 9985 System
 

GCS>Sun Microsystems>Storage - Disk>Datacenter Disk
 

If SIM 6001FF occurs no further pairs can be created. SIM error codes 600yxx are related to CoW (copy-on-write) feature of Sun StorEdge[TM] 9990 series/Sun StorEdge[TM] 9985 System and pool utilization. They reflect over utilzation as follows:

6000xx - pool utilization exceeds set threshold value for the pool xx
6001xx - pool xx blocked because became full
6001FF - SM full (for pool usage)

If SIM 6001FF occures no further pairs can be created. The user will be notified.

SIM error code 4B3yxx means a failed copy-on-write snapshot pair; Copy-on-write Snapshot ERROR (abnormal end) where:

y = CU number
xx = LDEV number

SIM error codes 6001FF, 6001xx, 6000xx as well as 4B3yxx covered in TRBL18-20 and troubleshooting/recovery covered in TRBL18-50.

1. Capture current Copy on Write, Shadow Image, True Copy and Universal Replicator configuration. You would need to recover them from that information later on. Refer to SunSolve article #81862 for more details.

2. Remove all COW pairs through either Storage Navigator or Command Control Interface (CCI).

3. Remove all Pools through Storage Navigator.

If the Storage Navigator denies to delete a Pool record the message id and review Storage Navigator Error Codes.

In the sample below message id 3005 58472 were reported.

messageID 3005 58472

The Operation of the pool has failed.

Pool cannot be registered when:

- V-VOL management area is not initialized.
- V-VOL management area is not installed.
- there is no space left in the V-VOL management area.
- the pool is blocked
- the state of shared memory is abnormal

Pool cannot be deleted when:

- V-VOL management area is not initialized.
- V-VOL management area is not installed.
- Copy-on-Write Snapshot pair still remains in the pool.
- P-VOL still remains in the pool
- the pool is blocked.

The threshold of pool cannot be changed when:

- the threshold is set below the usage rate of the pool.

At this point in time it is strongly recommended to consult Sun Support Services.

Please read and follow the instruction Copy-on-Write Snapshot User?s Guide, Command Control Interface (CCI) User and Reference Guide, Storage Navigator User?s Guide and Storage Navigator Error Codes.

Missing to initialize the VFS SYS Area and Pool Management Area were the root cause for the sample.

ESC #1-18555406; Action plan by Matthias Muench, Germany.

Although the Copy-on-Write Snapshot User?s Guide states how to initialize the V-VOL management area and Pool Management Area there might be additional steps as installing Shared Memory and initialize the VFS SYS Area.

Following activities in the reference case after analyzing messageID 3005 58472.

1. Initialize VFS SYS Area

Depress Initialize button on Shadow Image Main panel.

- For Initialize, Insert Password of RAID-HOMRCF and select OK.

- Select OK to message "Do you want to execute the Initialize operation?(7010 9110)".

- Select OK to message "The requested operation is complete.(110 9002)".

2. Remove all CoW and Shadow Imgae pairs

3. Micro Code upgrade; please read and follow the ECN carefully.

4. Install additional Shared Memory if required; this step is optional.

5. Initialize VFS SYS Area and Pool Management Area.

If you discover stale pools verify that they have size=0 and no LDEVs associated. If so repeat to initialize VFS SYS Area and Pool Management Area.

6. Finally follow the "Copy-on-Write Snapshot Workflow" as documented in Copy-on-Write Snapshot User?s Guide.

It is strongly recommended to consult Storage TSC Highend Disk Backline for further advice and issue.

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