Checklist 11: Actions for a failure in a basic auxiliary storage pool disk unit
This checklist shows the sequence of steps you should use to recover after basic auxiliary storage pool (ASP) has failed and some data has been lost.
This checklist should be used for the following problem situation:
- Failed unit:
- Basic ASP
- Data loss:
- Some
Most steps in the checklist include references to other tasks in this topic. Refer to these topics if you need more information about how to perform a particular step. You might not need to perform some steps, such as restoring changed objects, if they do not apply in your situation.
| Task | What to do | Where to read more about it |
|---|---|---|
| Actions to be performed by the service representative | ||
| ___ Task 1 | Save the disk unit. | |
| ___ Task 2 | Attach the new disk unit. | |
| ___ Task 3 | Restore the disk unit data. | |
| Actions to be performed by the user | ||
| ___ Task 4 | You must perform an initial program load (IPL) at this time. Follow the procedure for starting the system after it ends abnormally. | Starting the system after it ends abnormally, task 1 through task 4. |
| ___ Task 5 | Reclaim storage. | Reclaim Storage (RCLSTG) command. |
| ___ Task 6 | Evaluate the extent of the damage. Determine whether you will attempt to recover damaged objects or restore the entire system. Do not skip this step. | Task 4: Recovering from damaged objects and unreadable sectors. |
| ___ Task 7 | If you have decided to do a complete restore operation, determine the correct procedure for recovering user information. | Choosing the procedure to recover user information. |
| ___ Task 8 | If you have decided to attempt to recover damaged objects, perform the tasks in Task 4: Recovering from damaged objects and unreadable sectors. | |