[Veritas-bu] Performance issues with user initiated backups.

Subject:

From:

<mark.a.goodchild AT bt DOT com>

To:

<veritas-bu AT mailman.eng.auburn DOT edu>

Date:

Wed, 4 Jul 2007 15:02:59 +0100

Hi all

Environment :
Master Netbackup 6.0 MP4
Solaris 10
Media server 6.0 MP4
HP-UX 11
IBM 3584 Library San Attached
IBM LTO2 Drives

Media server is the oracle client too so it’s a local backup.

Data :

/u21/oradata/D1 118gb 169 files

User Backup of above writes to drive1, tape1 at 13mb/sec

Scheduled/immediate backup writes to drive1, tape1 at 27mb/sec

We believe that there is so much communication going on between all the netbackup processes regarding files and updates when a user backup is run.

Can anyone think of anything else that would slow this backup down to half the speed.

We have done numerous tests on different drives, tapes and even chosen different data locations, and come up with the same results.

Cheers

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