Get high I/O rate alert from linode.com,how to location problem?

linux linode

Solution 1:

You can determine which process is thrashing your disk using the iotop package. http://ubuntuforums.org/showthread.php?t=876738

Also, you can change the I/O rate alert threshold in the Settings tab of the Linode web interface.

Solution 2:

Try vmstat and see if there's much bi/bo. I thought it is caused by swap thrashing, due to the small physical memory of your Linode.

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