Moving a disk unit to a different auxiliary storage pool
You might want to move a disk unit from one auxiliary storage pool (ASP) to another.
You want to create a user ASP for journal receivers and move some of the disk units on your system to the new user ASP. You can accomplish this in one process. When you move a disk unit to an ASP that does not exist, the system creates the ASP.
You might also decide to move disk units because you no longer need to have user ASPs on your system and you want to move all the disk units back to the system ASP.
Note: Disk units cannot be moved
to or from an independent auxiliary storage pool.
Restrictions when changing your ASP configuration: Consider these things when you are planning to move disk units from an ASP:
- The system might take a long time to move the disk unit because it must copy the data from that disk unit to other disk units in the ASP.
- You cannot move unit 1 (the load source unit) from the system ASP.
- You cannot move disk units from a user ASP that is overflowed.
- You cannot move disk units in and out of the same ASP in the same operation.
- When mirrored protection is active for an ASP, you cannot move disk units in and out of the ASP. You must remove disk units in pairs from a mirrored ASP. You can then add them to a different ASP.
- When mirrored protection is active for the ASP that contains the disk units, you must remove both disk units of a mirrored pair.
- When you remove a disk unit, it becomes nonconfigured.
To move disk units between ASPs, follow these steps: