topic Re: Disk throughput Info in Operating System - HP-UX

Disk throughput Info

Trentor Dickman — Thu, 25 Sep 2008 18:24:40 GMT

Dear All,

I am trying to understand the disk utilization in one of our server.

I am using OpenView to get some statistics about the disk utilization using the disk throughput option.

I can see the disk path like "0/5/1/0.61.0.9.0.2.0".

How can I match the disk path with a disk name, like /dev/dsk/ch4t0d1?

I tried run the ioscan -fnC disk |more and I could see the /dev/dsk/ch4t0d1 related to the disk path above (i.e) but there are some I can not find there.

Sorry for the dumb question. I am trying to understand these stuffs and are all new for me.

I hope someone undestand my question.

Kind Regards,

TRE

Re: Disk throughput Info

Tim Nelson — Thu, 25 Sep 2008 18:30:21 GMT

"OpenView" what ?? Glance, Performance Manager.... ??

If glance in gui mode you can double click on the HW address and see more details. (in character mode there is an option to select a specific device for more info, ? for help )

Otherwise a manual way would be to.
ioscan -kfnH HW_ADDRESS
make note of the device filee associated with the HW address
pvdisplay -v /dev/rdsk/cxtxdx
This will show you what vg and lvols are using this device

bdf or mount to see which filesystems are using which lvols.

Re: Disk throughput Info

Trentor Dickman — Thu, 25 Sep 2008 18:45:15 GMT

Tim,

You made my day :-).

Thanks a lot for the quick response.

Regarding the OpenView, I believe it is Measure Ware, I access a webpage that gives me graphics about the disk utilization.
I am also using glance to check that as per your information.
Once I try to run the option "u" within glance, it shows me 21 disks, is there any other way within glance to see all disks? I mean, like turn the page for next ones?

I am getting there now. I was able to see a high disk usage.

I really appreciate it.

Kind Regards,

TRE

Re: Disk throughput Info

Tim Nelson — Thu, 25 Sep 2008 18:54:24 GMT

If you are using something that looks like the attached pic then your are using "OpenView Performance Manger" (OVPM).

This product connects to the MeasureWare collectors running on your UNIX servers ( also known as Scope/UX )to retrieve collected performance stats and graph them in a java based application.