1 of two drives failed in my external, but I can't access the one that is OK...

Discussion in 'Mac Accessories' started by drummerboy03, Nov 17, 2013.

  1. drummerboy03 macrumors member

    Joined:
    Jun 14, 2009
    #1
    I had two 1.5TB drives in an OWC enclosure. I had it formatted as 'Mac OS X Extended (Journaled)' so that it showed up as one 3TB volume when it was mounted.

    One of the 1.5TB drives failed yesterday (makes a loud noise when trying to spin up). I suspect the other 1.5TB drive is completely fine as it does not make any odd noises when I remove it and plug it into a single HD slot enclosure.

    the problem I'm having now is that I cannot access any of the data on the 1.5TB drive that I suspect is OK...... it does not mount, but it DOES show up in Disk Utility. When I try to verify or repair permissions, i get the following error:

    "partition map check failed because no slices were found"

    I even tried Disk Warrior, but the drive does not show up in the list.

    any help would be GREATLY appreciated!! thank you!
     
  2. blueroom macrumors 603

    blueroom

    Joined:
    Feb 15, 2009
    Location:
    Toronto, Canada
  3. ColdCase macrumors 68030

    Joined:
    Feb 10, 2008
    Location:
    NH
    #3
    When one of my drives in my owc enclosure failed I sent it back to owc and they replaced the drive. When it got back to me I could see all the files on the good drive but all files on the failed drive disappeared and were lost.

    In my case I had purchased the drives with the enclosure, so it was under warranty.
     
  4. drummerboy03 thread starter macrumors member

    Joined:
    Jun 14, 2009
    #4
    dangit...

    I had backed up all the raw GoPro video footage recently, so i at least have that... but i had spent hours editing down that raw footage in an iMovie project that was stored on that drive ;(

    was hoping there would be a way to recover some data from the 1 working drive, but it sounds like with RAID 0, it is distributing the data across both drives.

    so i'm for sure out of luck? in other words, i should cut my losses and reformat the 1 drive that still works and start to rebuild my life haha?

    thanks for the quick response/input!

    ----------

    thanks for the input.. i bought the enclosure separate from the drives
     
  5. FreakinEurekan macrumors 68040

    FreakinEurekan

    Joined:
    Sep 8, 2011
    Location:
    Eureka Springs, Arkansas
    #5
    Yes, that's your only choice.

    First though, go get a 3TB-4TB USB drive and set up Time Machine.
     
  6. blueroom macrumors 603

    blueroom

    Joined:
    Feb 15, 2009
    Location:
    Toronto, Canada
  7. drsox macrumors 65816

    drsox

    Joined:
    Apr 29, 2011
    Location:
    Xhystos
    #7
    RAID0 and Spanned Drives always need a backup as any failure destroys the whole structure. RAID1 does provide resilience against a single drive failure, but it also isn't a backup. IMO get a simple USB drive and make a mirror. Even Time Machine will fail as it's only a single drive.
     
  8. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #8
    [[ was hoping there would be a way to recover some data from the 1 working drive, but it sounds like with RAID 0, it is distributing the data across both drives.
    so i'm for sure out of luck? in other words, i should cut my losses and reformat the 1 drive that still works and start to rebuild my life haha? ]]

    RAID _is not_ a backup.

    Be governed accordingly, in the future.

    Live and learn...
     
  9. drummerboy03 thread starter macrumors member

    Joined:
    Jun 14, 2009

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