Did you set the "max mpx per drive" option in the Storage Unit config?

Paul

> -----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: May 3, 2005 12:33 PM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: RE: [Veritas-bu] Scratch Pool Usage
> 
> 
> 
> 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
> > > 
> > 
> > _______________________________________________
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> > 
> 
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