You could backup the volumes on separate days, but since you are already doing 
a DSA backup (backing up via the net rather than direct backup), you are 
already getting the advantages of parallelization and variable block lengths. 
To increase the parallelization, you can change to backing up by qtree's rather 
than volumes. Each qtree will be parallelized with the backup. Also, the delay 
in the nsrdump is reduced since it has to walk a smaller part of the volume.

Also, do you have the backups on a separate network? We have found by 
separating out the NetApp backups to a different nic on the NetApps and 
different NICs on the backup server and running Jumbo frames, the backup was 
greatly increased (and lowed the CPU overhead on the backup server).

----
Matthew Huff       | One Manhattanville Rd
OTA Management LLC | Purchase, NY 10577
www.otaotr.com     | Phone: 914-460-4039
aim: matthewbhuff  | Fax:   914-460-4139

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of tkutil
Sent: Monday, February 25, 2008 12:13 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Long NDMP Backups

My last backup of ~3TB of data on a NETAPP filer took about 12 hours. I'm on a 
private vlan with an LTO3 tape SCSI conncected to my Networker server. Is that 
an acceptable time to accomplish a backup? I thought I saw on one of the 
postings that I could split up my volumes and backup each up on a separate 
schedule??? Am I halucinating?
ex. 
/vol/vol1 Full on Day1
/vol/vol2 Full on Day2
/vol/vol3 Full on Day3

You get the picture...

+----------------------------------------------------------------------
|This was sent by troy.kutil AT milwaukeetool DOT com via Backup Central.
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