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VTSS DBU at 100% and VTCS Auto Migration Is Stalled (Doc ID 1015257.1)

Last updated on AUGUST 17, 2016

Applies to:

Sun StorageTek Virtual Tape Control Software (VTCS) - Version: 6.1 and later   [Release: 6.0 and later ]
IBM z/OS on System z

Symptoms

DBU reaches 100%.
Auto migration stalls.
Intervention required messages on VTDs.
IOS003A xxxx INTERVENTION REQUIRED, READY THE DRIVE

Cause

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