OSX Randomly spins up external hard drive, really annoying

Discussion in 'macOS' started by midgetsanchez, Aug 3, 2009.

  1. midgetsanchez macrumors regular

    Jun 9, 2009
    So I have an external hard drive hooked up to my MBP via USB. I've noticed that every now and then (maybe every half hour or hour?) the drive spins up. It's actually really annoying, as the drive makes a loud sound as it spins up.

    I can't figure out why it does this; the drive spins up and then goes back idle. Time machine is DISABLED, spotlight index on the drive is DISABLED as well. I use the drive solely for storing movies/music. There are NO applications installed on it. The only apps I have open are finder/preview/safari/firefox/adium/itunes. My guess is that some process is trying to access the drive for whatever reason now and then.

    Does anyone know what might be the culprit? Help is appreciated.
  2. Kelly Craig macrumors member

    Kelly Craig

    Jul 30, 2009
    When it starts spinning up, pull the cord out of the machine causing that device removal error to appear.

    then go log hunting, see what else bitched that the drive left.
  3. midgetsanchez thread starter macrumors regular

    Jun 9, 2009
    Thanks for the advice. I did as you suggested, hit the power switch on the drive as soon as I heard it spinning up. These are the logs I pulled from console:

    I can't really tell, it looks like time machine is responsible? I have a time machine volume on the drive but time machine backups are DISABLED. Also, the drive powers on even if my computer is idle. This is baffling.
  4. paulbeattie87 macrumors regular

    Aug 17, 2008
    North East Scotland
    I had the same problem, I had two external drives connected one was used for time machine the other was just storage. It sounds extreme but I was buying it anyway, I've connected the drives to time capsule now they never spin up unless I request :).

    You could do the same with Airport Extreme as well. I had the same problem on Windows with it accessing drives that had spun down. Pain but it seems to be the norm.

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