The SHOWPOOL report is used to verify which storage pool should be recovered in case of a DASD failure.
The second part of the report is used to determine which storage pool contains the affected dbextent(s). The first part of the report is then used to determine if that storage pool is eligible for storage pool level recovery (indicated by 'pool is RECOVERABLE' in message XTS9-203.) The pool number can then be included in the pool list for the RESTORE function.