VTL - Virtual tapes are not filling to capacity

Asset ID:	1-72-1017410.1
Update Date:	2011-08-10
Keywords:

Solution Type Problem Resolution Sure

Solution 1017410.1 : VTL - Virtual tapes are not filling to capacity

Applies to:

Sun StorageTek VTL Storage Appliance - Version: 4.0 - Build 1221 and later   [Release: 4.0 and later ]
Sun StorageTek VTL Plus Storage Appliance - Version: 1.0 - Build 1323 to 2.0 - Build 1656   [Release: 1.0 to 2.0]
Sun StorageTek VTL Value System - Version: 1.0 - Build 1323 and later    [Release: 1.0 and later]
Sun StorageTek VTL Prime System - Version: 1.0 - Build 1813 to 1.1 - Build 2076   [Release: 1.0 to 1.0]
Information in this document applies to any platform.
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***Checked for relevance on 10-08-2011*** (dd-mm-yyyy)

Symptoms

TCoD is getting disabled
Virtual tapes are not filling to capacity
VTL is not reclaiming space
Backup is reaching EOT marker before maximum capacity reached

Changes

Disk cache was previously filled to capacity, but then reclaimed to free up space.

Cause

When a virtual tape expansion fails due to an out of space condition, TCoD is automatically disabled and the last expansion point becomes the maximum tape capacity.

Solution

Virtual tape(s) that have had TCoD disabled, must be deleted and re-created to enable TCoD. There are no plans to change this.

The "vtlcheck" utility can be used to determine how many virtual tapes have had the TCoD disabled. Refer to document "Reference" section below which is an Internal document. If you do not have access to this document, please contact VTL support.

References

<NOTE:1340194.1> - VTL - How to check is TLE and VTL config are out of sync using vtlcheck script

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