Thanks Ed but I'm confused. If I say that Netbackup can send 15 streams to a DSSU and then I have 15 clients sending streams all at once to that DSSU, wouldn't the data be more fragmented than if I sent only 1 stream? Could you elaborate a bit on how that works?
Thanks, Vic On Wed, May 5, 2010 at 4:05 PM, Ed Wilts <ewi...@ewilts.org> wrote: > On Wed, May 5, 2010 at 2:57 PM, Victor Engle <victor.en...@gmail.com>wrote: > >> So my question is how best to configure the DSSUs with the goal of >> optimized de-staging. I will have 6TB to configure as desired on the >> backup server. If I understand correctly, the more concurrent streams >> allowed to the DSSUs, the slower the de-staging because of interleaved >> backup streams. > > > The DSSU consists of a set of files with each file being a backup image and > you define the maximum size of each file within an image. There is no > "interleaving". When you destage, one image at a time goes to tape. > > Watch your fragment sizes and watch your disk file system fragmentation... > > > .../Ed > > > Ed Wilts, RHCE, BCFP, BCSD, SCSP, SCSE > ewi...@ewilts.org > Linkedin <http://www.linkedin.com/in/ewilts> >
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