Determine what's raping my harddrive?

Discussion in 'macOS' started by pherplexed, Apr 15, 2008.

  1. pherplexed macrumors member

    Feb 28, 2005
    Wasn't sure if I should post this in the OS X forum or the hardware specific problem. Anyway, every now and then my MacPro will get supper sluggish and i can hear the harddrive churning away. Inside Activity Monitor, I can see the disk usage graph spike big time, but it doesn't tell me what applications (or services) are ass-raping my harddrive when this happens. Most of the apps listed show nominal CPU usage.

    What can I use to see what's paging my harddrive when this happens?

  2. operator207 macrumors 6502

    Jul 24, 2007
    man lsof in the terminal.

    Specifically 'sudo lsof -s | more' may show you what program is holding a file open and just writing to it. It won't be easy to find, but its a start.

    Note: to page down in more, use the spacebar, to page up use the 'b' key.
    To quit, use 'q'.
  3. Eidorian macrumors Penryn


    Mar 23, 2005
  4. operator207 macrumors 6502

    Jul 24, 2007
    Yes, use the above, MUCH easier to understand. Forget what I said above. I mean you *can* use what I said above, but this will give you a much easier to read analysis.

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