Re: [Veritas-bu] Backup to DSSU, and staging to tape at the same time?
I would agree with Justin. I have a DSSU of around 8TB sitting on a CX600, with 15k drives in a SAN, and even with that the staging off will slow down the backups enough to add around 6 hours to normally a 20 hour backup. You CAN do it, but you can also drag a 1000lb weight behind your car... but don't expect to get good MPG! ;-) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Justin Piszcz Sent: Monday, February 04, 2008 8:37 AM To: VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Backup to DSSU, and staging to tape at the same time? On Mon, 4 Feb 2008, osonder wrote: > > Hello > > What is the best practises regarding this? Can I do DSSU at the same time as backup jobs use the DSSU? > I want my drives free in daytime to do restores... > > +- > +- > |This was sent by [EMAIL PROTECTED] via Backup Central. > |Forward SPAM to [EMAIL PROTECTED] > +- > +- > > > ___ > Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > Why not reserve a drive for restores? I wouldn't recommend both unless you had a SAN beind it or a lot of 15k drives. Justin. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Backup to DSSU, and staging to tape at the same time?
I can't reserve a drive totally to restore, because I have to use all 4 for staging. My DSSU includes 28 300Gb. 10K disks. +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Backup to DSSU, and staging to tape at the same time?
I try to limit the amount of time I'm simultaneously reading from and writing to any DSSU. In my testing here with SATA Disk I take a pretty big performance hit on the write to tape - in the neighborhood of 80%. You could probably do better with FC or SAS Disks, but you are still going to take a performance hit. -Jonathan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of osonder Sent: Monday, February 04, 2008 8:12 AM To: VERITAS-BU@mailman.eng.auburn.edu Subject: [Veritas-bu] Backup to DSSU, and staging to tape at the same time? Hello What is the best practises regarding this? Can I do DSSU at the same time as backup jobs use the DSSU? I want my drives free in daytime to do restores... +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
Re: [Veritas-bu] Backup to DSSU, and staging to tape at the same time?
On Mon, 4 Feb 2008, osonder wrote: > > Hello > > What is the best practises regarding this? Can I do DSSU at the same time as > backup jobs use the DSSU? > I want my drives free in daytime to do restores... > > +-- > |This was sent by [EMAIL PROTECTED] via Backup Central. > |Forward SPAM to [EMAIL PROTECTED] > +-- > > > ___ > Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > Why not reserve a drive for restores? I wouldn't recommend both unless you had a SAN beind it or a lot of 15k drives. Justin. ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
[Veritas-bu] Backup to DSSU, and staging to tape at the same time?
Hello What is the best practises regarding this? Can I do DSSU at the same time as backup jobs use the DSSU? I want my drives free in daytime to do restores... +-- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +-- ___ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
