UNIT: Specifying the type of device

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:
  • 3380
  • 3390
  • 9345
Defaults: None.
Note:
  1. If you specify UNIT, you must also specify the VOLUME parameter.
  2. 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.
  3. 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.
Parent topic: Optional parameters of the RECALL command