Explanation: DASDMIGRATE | NODASDMIGRATE are
mutually exclusive, optional subparameters of the COMPACT parameter
specifying whether or not to compact a data set during migration to
DASD.
| Subparameter |
Explanation |
|---|
| DASDMIGRATE |
DFSMShsm can compact a data set during
migration to DASD. |
| NODASDMIGRATE |
DFSMShsm does not compact a data
set during migration to DASD. |
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 NODASDMIGRATE.
Note: - If you do not want a specific data set compacted during volume
migration to DASD, use the data set migration exit (ARCMDEXT) to prevent
compaction.
- If you specified the TAPEMIGRATION(DIRECT) parameter of the SETSYS
command, DFSMShsm ignores the DASDMIGRATE or NODASDMIGRATE subparameter
if you specify one of them.
- Although the MIGRATE and NOMIGRATE subparameters no longer exist,
DFSMShsm does not fail the command if you specify them. Instead, MIGRATE
and NOMIGRATE have the same meaning as DASDMIGRATE and NODASDMIGRATE.
- Since compressed format data sets are already compressed, they
will not be compacted during migration to DASD.