Networker

Re: [Networker] Performance Tuning backup

2007-07-26 10:21:27
Subject: Re: [Networker] Performance Tuning backup
From: Stan Horwitz <stan AT TEMPLE DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 26 Jul 2007 10:18:41 -0400
On Jul 26, 2007, at 10:10 AM, egold AT fsa DOT com wrote:

About 10 mb/sec.

I've seen these drives get over 50 mb/sec when cloning. So I know they are not the bottleneck.

In that case, increasing the target sessions for each drive (maybe double them) and increase your server parallelism by 4*4 = 16 might help. Note that your NetWorker server license might prevent you from boosting the server parallelism, but it will tell you if that's the case.

Also, if any of the clients you back up have more than four disk mount points, you might try boosting that client's parallelism in the client resource. Before you do that, you need to keep in mind that users of that system may hit you because boosting client parallelism for a machine that's not powerful enough to handle the work will cause it to be bogged down while it processes the added workload.

You might want to install a performance monitoring tool on your NetWorker server and let it track processor load for you. You can certainly look at the task manager during the backup window and see what's up, but a real performance monitoring tool would give you more insight into how your server's resources are being used. Being as though I primarily work on Solaris and Linux, I can't recommend a specific tool, but I am sure some others on this list can.

--
Stan Horwitz
Temple University
Enterprise Systems Group
stan AT temple DOT edu

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