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  1. #1
    External HD periodically closing

    Member Since
    Apr 22, 2012
    Posts
    2
    Unhappy External HD periodically closing
    I'm running OSX 10.7.3 Lion on 27in Cinema Display with 8 GB of memory, Processor 3.1 GH Intel Core i5.

    Already have a WD 2 TB HD that I use for Time Machine Backups. Attached another WD 3 TB HD for archiving Home movies. Periodically, it shuts down (sometimes a few minutes, sometimes 15 or so) and a screen alert comes on: "! The disk was not ejected properly. If possible, always eject a disk before unplugging it or turning it off. (Then in less bold type) To eject a disk, select it in the Finder and choose File > Eject. The next time you connect the disk, Mac OS X will attempt to repair any damage to the information on the disk." Of course, I didn't do any of those things.

    Sometimes, within seconds or a few minutes, the HD icon will appear back on my desktop as if nothing happened.

    I previously had a 2 TB HD that preceded my current one, and thinking that it was a bad HD, I replaced it with a new WD 3 TB HD. Same results.

    What gives?

  2. #2
    External HD periodically closing
    Lifeisabeach's Avatar
    Member Since
    Sep 30, 2007
    Location
    The Republic of Neptune
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    7,637
    Most likely this has to do with the Energy Saver preferences. Try unchecking the option to Put the hard disk(s) to sleep when possible and see if that solves it.

    Please verify and include the exact model/year of your Mac and OS X version number (available from "About This Mac", then "More Info" on the Apple menu).
    ------
    Links: Onyx | EasyFind | Apple Hardware Test | How to test your hard drive | The Safe Mac Adware Removal Guide | Uninstall MacKeeper
    ------
    Lifeisabeach - Mac-Forums Member of the Month June 2009, Feb 2012, and March 2013.

  3. #3
    External HD periodically closing

    Member Since
    Apr 22, 2012
    Posts
    2
    Ok. Changed System Preferences to "Never Sleep" for Hard drive

    I do have MacKeeper. How do I uninstall it?

  4. #4
    External HD periodically closing
    Lifeisabeach's Avatar
    Member Since
    Sep 30, 2007
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    The Republic of Neptune
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    7,637
    Quote Originally Posted by cheesehead fred View Post
    I do have MacKeeper. How do I uninstall it?
    Via the instructions I linked to in my signature.

    Please verify and include the exact model/year of your Mac and OS X version number (available from "About This Mac", then "More Info" on the Apple menu).
    ------
    Links: Onyx | EasyFind | Apple Hardware Test | How to test your hard drive | The Safe Mac Adware Removal Guide | Uninstall MacKeeper
    ------
    Lifeisabeach - Mac-Forums Member of the Month June 2009, Feb 2012, and March 2013.

  5. #5
    External HD periodically closing
    Slydude's Avatar
    Member Since
    Nov 15, 2009
    Location
    North Louisiana, USA
    Posts
    8,542
    Specs:
    2.8 GHz MacBook Pro 10.10.2, 8 GB mem, iPhone 6+
    This could also be a symptom of the WD drive dropping off of the bus. Check the following and see if any/all of these solve the problem:

    1. Check the data (usb/firewire) cable coming to the drive. a faulty cable can cause this problem.
    2. If this drive is USB-based make sure it has its own power cord and isn't relying entirely on the bus for power.
    3. If #2 isn't an option or the drive is using two USB ports for power try plugging it into a hub that has its own electrical power.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

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