Very high IO Statistics (Blocks Read/sec) even when nobody is using the server

buddydavis

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Dec 1, 2014
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Hello,

My server shows high IO activity even when there is nobody using the server. When I see disk activity under "Disk Usage / Graphs", I usually see Blocks Read/sec in high thousands. I'm attaching a screenshot which I took - it shows md2 device doing 16,572 which I think is unusually high. Even sda device value is very high.

Can anybody shed some light on what is going on here?

Regards.
 

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cPanelMichael

Administrator
Staff member
Apr 11, 2011
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Hello :)

The following thread is a good resource for understanding which commands you can run to help better determine the cause of the high disk I/O:

Troubleshooting High Loads On Linux Systems

You may also want to report this issue to your data center to see if your hard drive is at the early stages of a failure.

Thank you.