topic Problems perfomance. %wio always up 50% in Operating System - HP-UX

Problems perfomance. %wio always up 50%

RNC — Tue, 05 Jul 2005 05:39:37 GMT

Hello, I have a problem, because in my server, the wio is always up the 50%.

Some one know what is the problem?

Thanks.

Re: Problems perfomance. %wio always up 50%

KVK — Tue, 05 Jul 2005 06:21:44 GMT

Either it can be a S/W problem or H/W problem .
We can't say what is the problem without enough information .

Please post the #top #iostat #swapinfo -tam #vmstat #sar output here

Re: Problems perfomance. %wio always up 50%

RNC — Tue, 05 Jul 2005 06:31:32 GMT

I adjust informacion. Excuse me.

Re: Problems perfomance. %wio always up 50%

Ted Buis — Wed, 06 Jul 2005 23:09:15 GMT

iostat shows no activity
so if you are waiting on i/o half the time, then could it be waiting for user input or waiting on the network? Is your network having problems autonegotiating full/half duplex on 100BaseT?

Re: Problems perfomance. %wio always up 50%

Jino.P.V — Thu, 07 Jul 2005 02:00:24 GMT

Hi,
Did you update the system with latest patch bundle. This may be the first thing you have to look at.
The second is that the network. Is there any n/w bottleneck? Use netstat command for checking the collisions, time out requests,
retries and packet errors. If you have glance network page will show all these parameters.
Third thing is to tune you kernel parameters which will suit to your database. Oracle or informix whatever it is.

The o/p of iostat doesn't show any disk bottleneck.

Hope this may help.

Jino