Backstore Tapes containing Externalized Virtual Volumes can be enqueued by Recycle and the Backstore Engine Externalization and Recall functions, all running on different systems. These three functions can try to mount the same tape at the same time and experience the standard wait for an in-use tape volume. This delay is eliminated by always propagating the QNAME SVTSX and SVTRCYCL enqueues as SCOPE=SYSTEMS enqueues to all systems. This allows Recall to take a tape away from Recycle or Externalization. This ensures that an application job or task always has priority over CA Vtape secondary functions.
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