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Oh, don't forget to configure sar to include disk utilization. It varies on how you do it based on the release, even within a release.

On redhat 5 add the following to /etc/sysconfig/sysstat
...

You can also look at changing the kern parmetere vm.swappiness.

They best this is to have enough memory, so you don't swap. If have enough memory (lots), you can look at vm.nr_hugepages to...

run the following
pvscan
vgscan
lvscan
vgs
lvs
pvs

See what that shows. If all else fails you can look at running a vgcfgbackup and vgcfgrestore with choose the config in /etc/lvm that is...

Looks like you are running at 98% memory, but not swapping. There isn't much swap used. However you may not be getting very good file cache hits and it could be adding a bit to the load.

I...

To get all the sar data for 2 hours at 30 minute interval and a place graph look on the web for a plae to graph it. I can't post URLs, because I'm a newbie here.


sar -Ap 30 240>...