Veritas-bu

[Veritas-bu] RE: Flashbackup-Windows experiences ?

2005-07-19 14:50:38
Subject: [Veritas-bu] RE: Flashbackup-Windows experiences ?
From: ewilts AT ewilts DOT org (Ed Wilts)
Date: Tue, 19 Jul 2005 13:50:38 -0500
On Tue, Jul 19, 2005 at 01:24:29PM -0500, Charles Ballowe wrote:
> The problem I had with flash backups was that the backup image is the
> size of the filesystem, not just the used size of the filesystem. The
> place where I expected the biggest gains from it was on large windows
> file servers. Unfortunately, these were recently migrated with plans
> for growth and at the time of my testing, 300GB of data on a 900GB
> filesystem - backups running at double the speed was nice, but still
> took longer - and not worth chewing the tape for. I may switch back to
> flashbackup if those filesystems are ever aproaching 80% full.

Why would you chew through 900GB of tape?  Most tape drives will
compress that to nothing anyway.  If you're staging to DSSU it could be
an issue.  I don't know if 6.0 addresses this or not.

        .../Ed

-- 
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org

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