The expiration mode for an EDM volume is defined as either immediate (IMMED) or deferred (DEFRD) in the sample user exit for that EDM volume. Default: Deferred.
If the mode is defined as deferred:
The EDM volume is marked in the Control-M/Tape Media database as pending scratched. The actual scratch is performed by the CTTRTM utility as part of the normal daily run of Control-M/Tape.
The volser of the scratched volume appears in the daily scratch report, but you must wait until after the next run of the CTTRTM utility to use the physical tape.
If the expiration mode is defined as immediate:
The EDM volume is immediately marked in the Control-M/Tape Media database as scratched after it expires.
The physical tape is immediately made available for use, but the volser for the scratched volume does not appear in the daily scratch report.
To change the default mode from IMMED to DEFRD:
While editing the sample user exit for the EDM interface you are implementing (as described in the following pages for implementing each EDM interface), search in the sample exit for the &EXPMODE parameter and change its value from D to I.
As part of the editing of the sample user exit, continue compiling the exit using the ICE Automatic Exit Installation Tool. For details about this tool, see the exits chapter of the INCONTROL for z/OS Administrator Guide.
