[Veritas-bu] Expired Backup ID Doesn't Free Up Some Space

2010-09-28 13:40:55
Subject: [Veritas-bu] Expired Backup ID Doesn't Free Up Some Space
From: Mark Hickey <Mark.Hickey AT hds DOT com>
To: "veritas-bu AT mailman.eng.auburn DOT edu" <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Tue, 28 Sep 2010 13:40:42 -0400


   Your problem , especially in the =case of physical tape, is that you put multiple retentions on the sane tape.  I understand that in the short term this  might reduce an initial tape purchase, but in the long term, you probably end up buying more tapes because the ones you are using contain 50% (or more) expired images, and at least one image that has not expired.  Since it is very complex to try to “recycle” part of a tape cartridge, I don’t think any vendor does it.


You have two basic options here:

1.       turn of “Allow multiple retentions per tape” an create separate tape pools for policies with different retentions to pull from

2.       Suspend the tapes from each backup session until all the images have expired.




Mark Hickey
Principal Technical Consultant
62 Beach Road
North Weymouth, MA 02191
O 781.331.3508
C 781.254.6441

mark.hickey AT hds DOT com 


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