Determining which tape dump volumes are available for output during dump processing

To determine which tape volumes are available for volume dump processing, issue the following command:
LIST DUMPVOLUME SELECT(AVAILABLE)
This command lists each dump volume that is available for use for dump output.
To find out what tape volumes are available for a particular dump class for volume dump processing, issue the following command:
LIST DUMPVOLUME SELECT(AVAILABLE DUMPCLASS(class))