VTSS DBU has Exceeded the HAMT with Auto-Migration Active
(Doc ID 1015698.1)
Last updated on JUNE 19, 2019
Applies to:
Sun StorageTek Virtual Tape Control Software (VTCS) - Version 6.0 and laterIBM z/OS on System z
Symptoms
DBU has exceeded the HAMT.
DBU has exceeded the high threshold.
VTVs are not being migrated from the VTSS fast enough.
Auto migration is active.
Changes
Production workload higher than anticipated.
Cause
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