Using the generic rather than the esoteric unit name for duplex generated tape copies

DFSMShsm will pass the appropriate SETSYS specified unit name, for example SETSYS MIGUNITNAME (esoteric or generic unit name) in effect when a duplex failure generates a tape copy, instead of the generic equivalent of the SETSYS unit name, for example 3590-1. This change affects DFSMShsm's Backup, Migration and Recycle functions. The ABARS function is not affected.

To change the behavior back to always passing the generic unit for the tape copy, use the DFSMShsm PATCH command to set the MCVTF_GENERIC_TCN_UNIT flag on:

PATCH .MCVT.+196 BITS(....1...)

To return to the default behavior of using the SETSYS specified unit name:

PATCH .MCVT.+196 BITS(....0...)