RHEL5 performance

[Barry Brimer]

On Wed, 8 Sep 2010, Nicosia Gaetano wrote:

> Hi to All,
>
> this is my "scenario".
>
> 1) I have a Server Poweredge Dell T100 with RHEL5 installed;
> 2) This Server is new and the hardware has been tested;
> 3) On this Server I have installed Oracle DB 11g R2;
>
> I am connected to Server through Client in a little home Intranet, and all 
> work without problems.
>
> But I realize that, in a short time, the server response time grow greatly, 
> and there is a remarkably deterrioration of performance and I-O.
>
> Often, I must restart the server.
>
> Someone has an idea o suggestion for me ?

What shows in dmesg and /var/log/messages?

I realize that you've tested the hardware.  How have you tested it?  Have 
you run memtest86+ on this system?  Have you run Dell Diagnostics on 
this system?  Does this problem occur when Oracle is not running, or only 
when it is running?

Barry