Disk Monitoring using iostat

The iostat utility is run on virtual machine hosted on Virtual BOX.


# iostat
Linux 2.6.18-92.el5 (PuppetMaster) 07/20/2011

avg-cpu: %user %nice %system %iowait %steal %idle
0.05 0.08 0.65 0.04 0.00 99.18

Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 0.18 2.43 2.86 1430655 1686634
dm-0 0.43 1.63 2.86 963178 1686624
dm-1 0.00 0.00 0.00 896 0

Disk Monitoring Using IOZONE.

iozone is a filesystem benchmarking tool.

iozone help us identify disk performance. I would recommend it to test SAN,NAS or Local Harddisk performance.

Step 1:
Download the utility from its official source.
http://www.iozone.org/

Hard Disk Performance Monitor

Use following well written article for checking disk performance.

http://www.linuxjournal.com/article/5203