[Veritas-bu] Scratch Pool Usage
2005-05-03 12:32:44
Hi again,
Ok, I set up my policy/schedule as follows:
Allow multiple Data streams = yes
Limit Jobs Per Policy = 8
Media Multiplexing = 4
I set up the Backup Selections as follows:
NEW_STREAM
D:\
NEW_STREAM
E:\Directory1
NEW_STREAM
E:\Directory2
NEW_STREAM
E:\Directory3
NEW_STREAM
E:\Directory4
I kicked off the policy. I expected to see 5 jobs, 4 of which would
go to 1 tape drive, the last going to a second tape drive. However,
when the jobs ran, NetBackup mounted 5 tapes and sent each job to it's
own Tape drive. What did I do wrong?
--Errin
> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of
> Larsen, Errin M HMMA/IT
> Sent: Tuesday, May 03, 2005 10:53 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: RE: [Veritas-bu] Scratch Pool Usage
>
>
> Thanks again, Paul,
>
> To answer some of your questions:
>
> The NICs are foced. There ARE two of them. 2 GB nics teamed
> together (before you ask, yes, I checked, the drivers are the latest)
>
> My backup selection list CURRENTLY looks like this: D:\, E:\
>
> The E drive is where the majority of the data sits: about 700
> GB. The D:\ drive is much smaller, maybe 40-50 GB. They are
> separate physical drives. The E drive lives on a SAN, where
> it is a RAID 5 configured volume.
>
> The tape drives are IBM Ultrium LTO drives, fiber attached to
> the NetBackup Master Server. I have 8 of these in a Sun Branded L180.
>
> I have a hard time imagining that the slow down is in the
> client's SAN connection to the target drives, or the Master
> Server's SAN connection to the Tape Drives.
>
> Thanks in advance for the help.
>
> --Errin
>
>
>
> > -----Original Message-----
> > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of
> > Paul Keating
> > Sent: Tuesday, May 03, 2005 10:12 AM
> > To: veritas-bu AT mailman.eng.auburn DOT edu
> > Subject: RE: [Veritas-bu] Scratch Pool Usage
> >
> >
> >
> > >
> > > Thanks for the response, Paul.
> >
> > No prob
> >
> > > I have a policy (MS-Windows-NT) that takes Diff-Inc
> backups every
> > > day except Sunday, which is when it takes a full. This produces
> > > one job (I
> > > was under the mistaken impression that Multiplexing allowed
> > one job to
> > > run to multiple tapes. Thanks for correcting me).
> >
> > MultiPLEXing allows multiple jobs from one or more machines
> > to run to ONE tape. Primarily for fast tape drives and slow clients.
> >
> > MultiSTREAMing allows multiple jobs from one machine to run
> > to multiple tapes. Primarily for fast clients and slow tapes
> >
> > > That job has been
> > > running between 19-21 hours(!!). I need to shorten that
> run time.
> > > This is a Windows File Server. The total backup size is about
> > > 750GB. Right
> > > now the policy is configured as follows:
> > >
> > > Policy stuff:
> > > Limit Jobs per Policy = 4
> > > Allow multiple data streams = Unchecked
> >
> > This is ONE machine?
> > You want multiple backups jobs from one machine to go to
> > multiple drives, correct?
> > Eg:
> > C:\ to drive 1
> > D:\ to drive 2
> > Etc.
> >
> > Here is your prob. You need to check "Allow multiple data streams"
> >
> > And your "Backup Selections" list should look something like:
> > NEW_STREAM C:\ NEW_STREAM D:\ NEW_STREAM S:\
> >
> > Etc......
> > If your drives are not different physical disks, however,
> > this may actually hurt performance. You only want to pull
> > maximum of 1 stream per physical disk.
> >
> > >
> > > Schedule Stuff:
> > > Type = Full Backup
> > > Media Multiplexing = 4
> >
> > Another prob. Set multiplexing to 1. (setting multiplex to 4
> > allows 4 backup jobs to go to one tape.)
> >
> > >
> > >
> > > Any suggestions on shorting the backup time? Any more
> info I can
> > > provide?
> >
> >
> > What type of tape drive?
> > Gig or Fast Ethernet?
> > Are NICs forced or set to auto Negotiate?
> >
> > That's a lot of data, if you're not prepared for it...
> > I'm currently backing up approximately that much data, split
> > between 2 win2k3 clusters. Each cluster has a RAID5 diskset
> > with about 1TB of space available. Each machine has a GigE
> > NIC dedicated to backups. (separate VLAN from production
> > networrk traffic) I'm pulling 2 streams (different
> > driveletters) from each RAID5 diskset, (only due to logical
> > naming) then multiplexing the two streams onto a single LTO2
> > tapedrive, getting about 50 Mbytes/sec per tape.
> >
> > We had some significant issue getting these machines up to
> > speed.......Antivirus was a HUGE speed killer.
> >
> > Paul
> >
> > _______________________________________________
> > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> >
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
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- [Veritas-bu] Scratch Pool Usage, Larsen, Errin M HMMA/IT
- [Veritas-bu] Scratch Pool Usage, Larsen, Errin M HMMA/IT
- [Veritas-bu] Scratch Pool Usage, Paul Keating
- [Veritas-bu] Scratch Pool Usage, Larsen, Errin M HMMA/IT
- [Veritas-bu] Scratch Pool Usage, Paul Keating
- [Veritas-bu] Scratch Pool Usage, Larsen, Errin M HMMA/IT
- [Veritas-bu] Scratch Pool Usage, Paul Keating
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Larsen, Errin M HMMA/IT <=
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- [Veritas-bu] Scratch Pool Usage, Bobby Williams
- [Veritas-bu] Scratch Pool Usage, Larsen, Errin M HMMA/IT
- [Veritas-bu] Scratch Pool Usage, Eric Ljungblad
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- [Veritas-bu] Scratch Pool Usage, Bobby Williams
- [Veritas-bu] Scratch Pool Usage, Paul Keating
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