[Centos] IOWAIT High CPU use

Fri Feb 25 06:14:06 UTC 2005
Brian Watters <brwatters at abs-internet.com>

Yeah Redhat still has no fix and it appears there are more RAID controllers
they are having issues with other that the Dell's .. 

BRW
 	 

-----Original Message-----
From: centos-bounces at caosity.org [mailto:centos-bounces at caosity.org] On
Behalf Of Paul
Sent: Thursday, February 24, 2005 9:57 PM
To: CentOS discussion and information list
Subject: Re: [Centos] IOWAIT High CPU use

On Thu, 2005-02-24 at 18:58 -0800, Brian Watters wrote:
> Hello all,
> 
> Just wanting to check in and see if CentOS v3.4 final has found the 
> fix to the issues that RedHat v3.0 ES has been having with very high 
> CPU use on IOWAIT ??
> 
> IF so what was the fix and or work around? .. We have lots of RH 3.0 
> servers that we are in the process of converting over to CentOS.

I've seen that using WB on a Dell 2400 with a Perc2 RAID controller ...
it's apparently a known issue with certain kernel versions and that
controller, updating the firmware may help.  You may want to checkout
Redhat's bugzilla on that issue.

Paul Berger


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