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Maintaining data fragments from migrated volumes z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Tape Libraries SC23-6867-00 |
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When a virtual tape volume is no longer needed in the tape volume cache, the data it represents is not completely removed. A fragment of the data is kept on DASD. The data fragment includes information about the migrated virtual volume so that it can be recalled and it also includes the first several records from the last use of the volume. |
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