You just need to keep an eye on how long you run these tools. Are there certain peak time or is this consistent 24 hours? I’m surprised that you are not getting calls on performance issues.

James

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From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Nils Vogels
Sent: Monday, October 22, 2007 10:40 PM
To: No More Linux!; toasters@mathworks.com
Subject: Re: disk busy 100%

On 10/23/07, No More Linux! <no.more.linux@gmail.com> wrote:

im not seeing a problem per se but since my other filers dont show this it was cause for concern/question i was hoping someone may have seen this before or had suggestions as to what may cause it to be constantly 100%

Sysstat shows the busiest disk only, which probably means that you might have a hotspot in your raid, or the most active blocks accidentally are on one disk.

Not necessarily somthing to worry about right now, but it is something to look further into, since it might cause problems if the hotspot warms up a little more :)

statit and perfstat are your friends in this case, to find out why the IO on at least one disk is high.

HTH&HAND

Nils

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