COMPACT TAPEBACKUP and NOTAPEBACKUP: Specifying whether to compact data sets during backup to tape

Explanation: TAPEBACKUP | NOTAPEBACKUP are mutually exclusive, optional subparameters of the COMPACT parameter specifying whether or not to compact a data set when DFSMShsm is backing it up to tape.

Subparameter Explanation
TAPEBACKUP DFSMShsm can compact a data set when DFSMShsm backs it up to tape.
NOTAPEBACKUP DFSMShsm does not compact a data set when DFSMShsm backs it up to tape.

SMS relationship: Parameter differs in meaning when applied to SMS-managed or non-SMS-managed DASD volumes or data sets.

SETSYS default: None.

DFSMShsm default: If you do not specify either subparameter on any SETSYS command, the DFSMShsm default is NOTAPEBACKUP.
Note:
  1. If you do not want a specific data set to be compacted during volume backup, use the data set backup exit (ARCBDEXT) to prevent compaction.
  2. Since compressed format data sets are already compressed, they will not be compacted during backup to tape.
Parent topic: Optional parameters of the SETSYS command