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Considerations for Using a Shared TMC

TMC and Audit Data Sets

The TMC and Audit data sets must reside on different physical devices. Define these devices as full pack minidisks. The full pack is required because CA VM:Tape dynamically determines the physical locations of the TMC and Audit data sets by reading the z/OS VTOC which, in turn, is located by reading the volume serial record.

Do not change the size or location of the TMC or the Audit data sets while CA VM:Tape is running. CA VM:Tape reads the VTOC only at initialization.