Resolved [OS X Yosemite] Seagate Drive - Randomly Unmounting

Discussion in 'MacBook Air' started by AppleGeek1127, Jan 31, 2015.

  1. AppleGeek1127, Jan 31, 2015
    Last edited: Feb 26, 2015

    AppleGeek1127 macrumors member


    Dec 30, 2014
    Chicago IL, USA
    Since I purchased my MacBook Air back in April, I've been using a Seagate External HDD to back up with Time Machine. The drive has been rock solid, and I haven't had ANY problems with it.

    However, just today - the drive has started randomly unmounting. After ~5 minutes of being plugged in, it just decides to quit.

    Oddly enough, the power light on the drive stays on after it's done unmounting itself. This doesn't usually happen when I unmount the drive manually.

    It's also worth mentioning that I've tried repairing the disk/permissions with Disk Utility, but the disk conviently unmounts itself before the process is completed. Is there any way to fix this, or is the drive just defective? Thanks.
  2. motrek macrumors 68020

    Sep 14, 2012
    Try swapping USB cables. I had a similar thing happen to me a few years ago and it turned out to be the cable.

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