On Fri, Aug 20, 2010 at 2:48 PM, Ed Donahue <liberaled@xxxxxxxxx> wrote:
> We are currently running CentOS 5 update 4 on a Dell R910 server 16
> cores/32 hyperthreaded with 64GB of memory. It is our main Oracle 11g
> DB server for one of our customers and is attached to an MD 3000
> storage array. We are having a load averaging around 5 but see no swap
> in use, CPUs are pretty much idle and no I/O wait. We have Oracle
> dataguard turned on in transactional mode. I've checked everything
> that I can think of, there are no Oracle processes running which would
> cause a spike. Anyone have any ideas as to what to check next?
>
> I have another R910 configured the same way and do not see any issues
> with the 3 databases running on that server. The load is at .5.
Do you have sar (sysstat) installed and running? That will gather
stats 1x per minute on the server and you can see more than what a
typical 'top' will show you. You can also graph the output using
ksar, which will make it easier to see things.
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