It is a good idea to run the DSNDELETE command of IXMAINT (documented in the DSNDELETE Command and Parameters section of the User Guide) nightly before the tape management scratch and clean functions are run. This makes the expired CA Disk tapes available as scratch tapes.
For users who do not use the EDM interface, if a job abends while writing a tape, most tape management systems consider that output tape a scratch as a default. To CA Disk, however, the partial tape is a good tape and must be kept. Take special precautions to prevent your tape management system from marking CA Disk output tapes as scratch tapes after an abend. This can be done manually, or for CA 1, you can make use of one of the exits within the CA 1 system. A CA Disk user has supplied a sample for this exit in member SLI035 of the user mod library. Consult your local CA 1 support staff or CA directly, if necessary, if you have further questions regarding their exit.
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