I/O stats on a Logical Volume

[denisl]

Hello,
I am trying to find out what the IO percentage/amount is being performed on a logical volume. Something similar to iostat but not for the physical disk. For example, I have a pv hdisk10 with lv's lv22 and lv23 residing on hdisk10. I want to know how much i/o is being performed on lv22, not hdisk10 which would show me lv22 AND lv23.

Thanks,
Denis

 

[vickersdc]

Sounds like you need the filemon command... I'l have to dig the information out for you though.

Hope it helps.
Dave V.

 

[vickersdc]

The filemon tool is part of the perfagent.tools package. It runs in the background collecting data and must be stopped using the trcstop command.

It consists of a series of reports from which you'll have to make your own conclusions, but here's an example of how to run it...

filemon -O all -o filemonReport.out; sleep 360; trcstop

This will run in the background for 360 seconds (6 minutes), then stop. A report filel "filemonReport.out" will be produced.

Cheers,
Dave V.

 

[denisl]

Dave,
Thanks!
That's exactly what I needed..

Denis