disk performance issue

[gab_in]

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

[Venkatesh BL]

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

[yulianto piyut]

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

[Jeeshan]

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.