topic Re: disk performance issue in Operating System - HP-UX

disk performance issue

gab_in — Thu, 15 Jan 2009 04:52:49 GMT

We are suspecting some performance related problems with Disk I/O in our itanium server running HP-UX 11.31.Can you please tell us how we can capture the disk performance statistics & how to check if there are disk performance issues.

Thanks in advance

Re: disk performance issue

Venkatesh BL — Thu, 15 Jan 2009 05:16:00 GMT

check this out: http://docs.hp.com/en/5992-4616/ch06s03.html#awperfio

Re: disk performance issue

yulianto piyut — Thu, 15 Jan 2009 05:19:56 GMT

check using "sar -d", iostat, or glance if you have.

Re: disk performance issue

Jeeshan — Thu, 15 Jan 2009 05:42:39 GMT

you have to check the disk I/0 from different aspect. From OS or from SAN (if its related to).

glance is the best tool. other than you can check with "sar -d" command. also consider the "sar -b 5 5" for the buffer cache utilization.

if it is in SAN then check with the SAN vendor, which tools they use to report disk utilization.