Explanation: UNIT(unittype) is an
optional parameter specifying the type of unit to which DFSMShsm can
allocate the target volume. A target volume is the volume that receives
the recalled data set. For unittype, substitute the type
of unit to which DFSMShsm can allocate the target volume.
The following are valid types of DASD units:
Defaults: None.
Note: - If you specify UNIT, you must also specify the VOLUME parameter.
- If the block size of the data set is greater than the track capacity
of the target volume, track overflow must be supported in both software
and hardware. This applies to devices whose track size is less than
32K.
- When you specify the UNIT parameter, DFSMShsm passes that unit
name to the automatic class selection (ACS) routines to determine
whether the data set should be recalled to an SMS-managed volume.
See Space management of SMS-managed storage for more information about
automatic class selection.