To prematurely expire/delete tapes from HiDRO's catalog, you issue:
CATALOG DELETE VOLUME _volser_ OWNER * DATE *
CATALOG DELETE VOLUME _volser_ FPOOL * FSPACE * DATE *
The 2nd CATALOG DELETE command is only needed if the volume may contain SFS data on it.
So, first you issue the CATALOG DELETE command(s) for each volume with the options shown above. This marks the tapes for deletion from the catalog.
However, the tapes are not actually deleted until the CATALOG CONDENSE command is run.
So, if you make a mistake and need to start over, you can run a CATALOG RECLAIM command and it will reset all the tapes so they will not get deleted when CATALOG CONDENSE is run.
You don't need to run CATALOG CONDENSE after each tape, you can, but you can wait till the end if you want to and all the tapes you specified previously with CATALOG CONDENSE will then be deleted.
When you run CATALOG CONDENS, the command should be sent over the VMTAPE to SCRATCH the tapes in the TMC at that time.