Re: Tuning question....

EnderW wrote:
>
> Hi,
> I am probably not gonna get any reply but I should do this on general
> principles anyway. I am using the "top" command on a machine and am
> seeing 61% iowait. Now in terms machine is a Solaris 2.7 E4500. Is this
> usual ? I have an oracle instance on the machine. I am trying to tune
> it and I have started from system level to see if there is anything I
> can improve. Seems like 61% iowait seems a little high to me. It is
> probably coming from contention from disks. Question is, is this value
> normal for iowait or not ? Thnx...
>
> PS. Better be that group, I don't think sys. adm. are into tuning...
>
> --
> Ender Wiggin
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.

If the disk layout is average or you have a nasty hotspot this figure could quite easily occur...

Its time to dig down into whats running and whats 'attacking' the disks so hard.

HTH

-- 
===========================================
Connor McDonald
http://www.oracledba.co.uk

We are born naked, wet and hungry...then things get worse