CMMVC9992E This VDisk maintains a snapshot for a parent volume. A copy cannot be removed
from a snapshot VDisk if the snapshot would no longer have a copy in the same pool as the parent
volume's copy.
Explanation
A volume copy can be removed from a snapshot only if the pools of the
remaining copies are the same as the pools of the parent volume copies.
User response
Ensure that the parent volume has a copy in the same pool as the remaining
copy of the volume.