Hi to Everyone,

How can I get disk utilization percentage if I just have tps, rd_sec/s and wr_sec/s ? (assuming RHEL3 Update 6 is my current installed RHEL OS and update)

Based on the latest sysstat service I'm using on Ubuntu 8.04 (32-bit), there's a %utils portion, but none on RHEL3 (probably a added feature or enhancement on the latest kernel version, 2.6, I am right?). Is that the same on CPU utilization (%idle) that I could used as a ground whether my system is in over, normal, and low utilization?

SAMPLE OUTPUTS:

02:15:01 DEV tps rd_sec/s wr_sec/s avgrq-sz avgqu-sz await svctm %util
02:25:01 dev8-0 1.21 59.04 5.72 53.63 0.01 6.40 3.00 0.36
02:25:01 dev8-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
02:25:01 dev8-2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
02:25:01 dev8-3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

00:00:00 DEV tps rd_sec/s wr_sec/s
Average: dev58-0 0.00 0.00 0.00
Average: dev58-1 0.00 0.00 0.00
Average: dev58-2 0.00 0.00 0.00
Average: dev58-3 0.00 0.00 0.00
Average: dev8-0 4.97 6.10 79.32
Average: dev8-1 0.00 0.00 0.00
Average: dev8-2 4.97 6.10 79.32
Average: dev8-16 69.12 1551.63 109.65

Help please.

Thanks.

Have you tried "sar -b".

Hi Ian,

Thanks for the response.

I would actually want to known if there's a matrix for disk I/O utilization in order for us to check if the our system's disk I/O process is normal, or over utilized.

I hope there is.

Thanks.