[CentOS] Disk Performance Issue

Chris Olson <chris_e_olson at yahoo.com> wrote:

>  One theory put forward is that some application is running that
>  uses up CPU and disk bandwidth.

1. Check the cable. I'm getting convinced that half of all problems
are caused by cables.

2. Use iotop to see what's using the disk.

3. Check the disk using smartmontools and badblocks (not in
destructive mode).

-- 
Yves Bellefeuille
<yan at storm.ca>