BackupPC-users

[BackupPC-users] Tuning for disk contention

2009-09-04 17:42:30
Subject: [BackupPC-users] Tuning for disk contention
From: James Ward <jeward AT torzo DOT com>
To: Backuppc Users <backuppc-users AT lists.sourceforge DOT net>
Date: Fri, 4 Sep 2009 14:39:22 -0700
The discussion over the various BackupPC scenarios got me to  
thinking.  My server IS disk bound.  All the servers it backs up on on  
at least a 100M network link in the same room and some on 1G.  With  
the default settings (4 simultaneous backups), the system is sitting  
right now at load average 9.25 and IO/wait from 33-99%. How does one  
best determine the fastest way to configure for the given scenario.   
Based on one respondent's comments, it makes me think I might be  
better off having only 1 backup running at a time?

What's a good IO/WAIT average to shoot for?  Load average?  Other  
things I might not be thinking of?

Thanks in advance,

James

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