VTVs Not Migrating To VLE Or Physical MVCs (Doc ID 1966761.1)

Last updated on SEPTEMBER 12, 2016

Applies to:

Sun StorageTek Virtual Tape Control Software (VTCS) - Version 7.0 and later
Sun StorageTek Enterprise Library Software (ELS) - Version 7.0 and later
IBM z/OS on System z

Symptoms

VTSS DBU was running high.

VTSS is filling up.

Migrates seem to be running slow.

Migrates don't seem to be happening.

Migrations appear to be running very slow or not at all for both VLE RTDs (vRTDs) and real/physical RTDs. This is causing the VTSS DBU to rise above desired levels.  When displaying the work Queue (D Q DET), there are VTVs assigned to RTDs but migrations take a very long time to complete. VTCS seems like it is bogged down.  When displaying the RTDs (D RTD), it takes a very long time for the command to return the output.  Eventually, SLS6946E messages started to be issued indicating that resources are waiting for long periods of time and were backing up.

Cause

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