External HD won't stay on...

Discussion in 'Mac Accessories' started by thomamon, Aug 4, 2015.

  1. thomamon macrumors 6502a

    thomamon

    Joined:
    Nov 24, 2008
    Location:
    Flemington, NJ
    #1
    So I have had two LaCie External Hard Drives and decided to add a new one. I bought the 8gb TB.

    For some reason tho, this one will not stay on. After a while the HD disconnects and I have to reboot to get it to show up again. Anyone have any clue what is going on or what I can do to fix that?
     
  2. ColdCase macrumors 68030

    Joined:
    Feb 10, 2008
    Location:
    NH
    #2
    USB? USB can be quirky, especially sleep mode firmware interaction with Macs. Try a different cable. There is a utility that some use to keep drives from spinning down and sleeping. I had something similar with an ORINCO enclosure and they sent me updated firmware that essentially disabled sleep modes. The enclosure/drives have been solid ever since. I would have expected LaCie to have that sorted out however.... so it could be a bad drive, enclosure, or cable.

    Thunderbolt? bad cable or enclosure.
     
  3. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #3
    Some thoughts...

    In the energy saver preference pane, there's an option to "put hard disks to sleep when possible".
    You want to UNcheck this option.

    If that doesn't work, there's a little app out there called "Keep Drive Spinning" which you can find here:
    http://jon.stovell.info/software/
    Might be worth a try...
     
  4. thomamon thread starter macrumors 6502a

    thomamon

    Joined:
    Nov 24, 2008
    Location:
    Flemington, NJ
    #4
    It is thunderbolt!
     
  5. thomamon thread starter macrumors 6502a

    thomamon

    Joined:
    Nov 24, 2008
    Location:
    Flemington, NJ
    #5
    OK, unselected that in preferences, thanks!
     
  6. matreya macrumors 65816

    matreya

    Joined:
    Nov 14, 2009
    #6
    Then under no circumstances should it be disappearing from your desktop and only being available after a reboot... either the enclosure or the cable is defective.
     
  7. thomamon thread starter macrumors 6502a

    thomamon

    Joined:
    Nov 24, 2008
    Location:
    Flemington, NJ
    #7
    How do I figure out which one?
     
  8. matreya macrumors 65816

    matreya

    Joined:
    Nov 14, 2009
    #8
    If you have other Thunderbolt drives, then you could swap cables around and see if the problem moves to a different drive...
     

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