During dump or backup (volume) processing, DFSMShsm creates a data set (the VTOC copy data set), that contains selected information from the VTOC of the volume DFSMShsm is dumping or backing up. These data sets are created on ML1 volumes. The VTOC copy data set drives the recovery of backed up data sets. Occasionally, VTOC copy data sets that are no longer needed remain as residual data sets on ML1 volumes. This happens when the primary volume that was dumped or backed up is removed from the system, and there is no longer a need to recover that volume.
To delete the VTOC copy data sets, use the DATA SET option from the ISMF primary option menu. This option can give you a list of the data sets associated with the primary volume that has been removed from the system. The DELETE command can then be used to remove the VTOC copy data sets.
'DFHSM.VTOC.*.%volser.*'
on the data set selection entry panel lists all the backup VTOC copy data sets. To find the dump VTOC copy data sets, change the second qualifier from VTOC to DUMPVTOC. Enter DELETE (on the data set list panel) in the line operator column next to the VTOC copy data sets you want to remove.