Veritas-bu

Re: [Veritas-bu] Clearing DSSU's.

2009-01-26 16:55:01
Subject: Re: [Veritas-bu] Clearing DSSU's.
From: Ed Wilts <ewilts AT ewilts DOT org>
To: Matthew Stier <Matthew.Stier AT us.fujitsu DOT com>
Date: Mon, 26 Jan 2009 15:43:40 -0600
On Mon, Jan 26, 2009 at 3:24 PM, Matthew Stier <Matthew.Stier AT us.fujitsu DOT com> wrote:
Background: Solaris 10 master/media server with several filesystems mounted from SAN to act as DSSU's.  Backups are done using cron initiated backup scripts, which call the applicable policy. Whe the policy is completed, another script dumps each DSSU to tape.

Issue: Need to rebuild the filesystems hosting the DSSU's.  Since these tapes are already backed up to tape, what do I need to do to purge all the images?

What you need to do is for each image on tape, verify that you have 2 copies and then expire the disk copy.  It's a little bit tricky because you'll be expiring copy 1.  If there is no copy 2 (say for some reason the image failed to destage), you've deleted your only copy.  If all goes well, you'll have an empty DSSU in the end.

You can also do a brute force rm of the disk images but that's a bit hostile since a restore will attempt to restore from disk rather than tape - you could expire the disk image if you run into this so that the tape copy is preferred, but as I said, it's ugly.
.../Ed

Ed Wilts, RHCE, BCFP, BCSD, SCSP, SCSE
ewilts AT ewilts DOT org
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