Amanda-Users

Re: Running amdump leads to high CPU load on Linux server

2003-11-24 09:18:19
Subject: Re: Running amdump leads to high CPU load on Linux server
From: Joshua Baker-LePain <jlb17 AT duke DOT edu>
To: Kurt Raschke <kurt AT raschke DOT net>
Date: Mon, 24 Nov 2003 09:15:16 -0500 (EST)
On Sun, 23 Nov 2003 at 7:46pm, Kurt Raschke wrote

> I've recently begun to have trouble with the Linux system that is my
> amanda server...when amdump runs, the load spikes to between 4.00 and
> 6.00, and the system becomes nearly unresponsive for the duration of
> the backup.  The server is backing up several local partitions, and
> also two partitions on remote servers.  I've tried starting amdump
> with nice and setting it to a low priority, but when gtar and gzip are
> started by amanda, the priority setting is somehow lost.  The server
> isn't even trying to back up multiple partitions in parallel, so I'm
> at a loss as to how this is happening, especially on a fairly fast
> server (dual Athlon MP 2000).
> 
> Any suggestions?  If you need to see the amanda logs or anything else
> that would help, just ask.

Are these IDE disks?  Make sure DMA is turned on...

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University