Excessive server I/O rate is a symptom of excessive memory usage?

Posted by johnlai2004 on Server Fault See other posts from Server Fault or by johnlai2004
Published on 2010-03-22T23:44:48Z Indexed on 2010/03/22 23:51 UTC
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memory

|

apache2

I'm learning to manage a VPS LAMP server. I noticed that whenever Apache consumes more RAM than is allotted, the server disk I/O rate jumps from a negligible value to a big value like 3k/hour.

Why is this so? What exactly is happening?

Thanks

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