0

One of my servers is getting very high Disk I/Os. The problem is that the disk I/Os are constantly increasing. The server just have simple LAMP configuration and there shouldnt be any disk operation ideally.

http://monitor.wingify.com/munin/visualwebsiteoptimizer.com/dev5.visualwebsiteoptimizer.com-iostat.html

Any help on how can I investigate as to what is causing this high disk I/O and how can I fix it. top / htop etc isnt giving me good information worth debugging

Thanks

2 Answers 2

3

Try use iotop to find active I/O process.

Also, try remount xvda with noatime option and add "iostat -dx 2" output from host system.

1
  • Also anything special from dmesg might be useful, for example disk error messages.
    – Olli
    Feb 21, 2011 at 9:20
1

I second iotop, it's a great way to see what programmes are using your disk.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .