Before using CA Vtape for the first time, an exclusive range of Volume Serial (VOLSER) numbers must be defined as new scratch tapes to the tape management system. These same Virtual VOLSERs are also added to CA Vtape. Most tape management systems support the definition of these new scratch tapes as Virtual Volumes or as residing in a nonexistent location. Consult your tape management system manuals for details.
The tape management system manages the Virtual Volumes as if they are real tape volumes. The only communication required between CA Vtape and the tape management system is to synchronize which volumes are in scratch status. This synchronization process is accomplished by adding a CA Vtape utility to the tape management system scratch process. Some tape management systems, like CA 1, have an automatic scratch notification feature that can be used instead of the utility program
All the protection, management, and control services normally provided by tape management systems for real tape processing are also provided for CA Vtape Virtual Volume processing.
An optional CA Vtape interface to CA 1 and CA TLMS provides enhanced stacking by expiration date and stacking location reporting. CA 1 and CA TLMS also automatically prestage Virtual Volumes into cache by issuing recall commands for the next volume in a multi-volume set.
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