Veritas-bu

[Veritas-bu] Backup speeds to STK 9940A drives

2002-10-22 12:01:36
Subject: [Veritas-bu] Backup speeds to STK 9940A drives
From: david AT datastaff DOT com (David A. Chapa)
Date: Tue, 22 Oct 2002 12:01:36 -0400
Without seeing any of your logs its hard to make suggestions, but I will 
anyway ;-)

Change your NUMBER_DATA_BUFFERS = 64

You really ought to do some kind of performance assessment before you make 
sweeping changes though.

Is this speed only when you are backing up itself or when you are backing up 
network clients?

David

Quoting andy.skates AT btopenworld DOT com:

> Solaris 8 Media Server
> NBU 4.5 MP1
> E220R (dual processor, 3Gb RAM)
> Emulex LP8000 HBA
> 
> NUMBER_DATA_BUFFERS = 32
> SIZE_DATA_BUFFERS = 262144
> 
> Only getting about 15009Kb/sec to FC tape.
> 
> Is there anything that I can change to try and
> improve this?




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