CMMVC6446E The command failed because the storage pools have different extent sizes.
Explanation
This task requires that the extent size of the source storage pool and the extent size of the target storage pool must be identical.
User response
If you want to resubmit this command, ensure that the source and target storage pools have the same extent size. If you want to move a volume to a storage pool that has a different extent size, you must use the procedure that is documented in the technical notes.