Hard Drives No Longer Recognized

I have two external Seagate Goflex 3TB drives that were working fine and then one day when I moved them to another computer they became unrecognizable. They were on a Mac, then I brought them over to an Imac and they do not work. The drives models are ST3000DM001. I'm trying to get the data off of them so I can back them up to another hard drive. I will then re-format these drives and then re-import the data. I am trying to fix these with a PC. I feel more comfortable working on it. I plugged in the drives into my Windows 7 PC, and my Windows XP Laptop, I get the same issue. The device drivers install properly and windows says that the devices are ready to use. I go into my computer and do not see them. In the device manager they are there and there are no exclamation points on them. I can even see them in disk management but cannot access the drives from there.


I believe the problem is that the drives all the sudden thing they are raid. I burned Knopix to cd and they show as raid in there. I came to this conclusion after reading this thread on a Linux forum. I really know nothing about Linux. http://ubuntuforums....d.php?t=1267663

Any help provided would be much appreciated!
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  1. after further searching, I'm not sure this is related to a raid error. I ran something called testdisk and I didn't get any errors in the partition. I don't know if I really used the program properly, but I believe I did. I'm at a loss.
  2. Your Ubuntu Forums link is incomplete.

    This looks like it:
    http://ubuntuforums.org/showthread.php?t=1267663

    If your GoFlex drives have been formatted with a Mac file system, then Windows won't see them natively. You would need something like MacDrive or HFS Explorer.

    Could you show us the contents of sector 0 on both drives?

    You could use a disc editor such as DMDE:
    http://softdm.com/download.html
  3. Can you guide me a bit on providing you with sector 0's information?

    To note... I made the same post on the Ubuntu Forums, I was hoping to learn a bit more about Knoppix because I thought it was the tool to use for this specific situation. I made a huge post of information. I'm not sure if it has what you need, but maybe some of it will be of help to you.

    http://ubuntuforums.org/showthread.php?p=12442809#post12442809
  4. AFAICT, your other post is telling us that the drive has been partitioned in GPT mode with an HFS+ partition. Therefore we don't need to see sector 0. It also explains why Windows doesn't recognise the file system.

    Sorry, but I can't help you.
  5. I bit the bullet and got macdrive 9 pro. I really want get this data back. Windows explorer sees the drive, but when I try to access it, I get this error "H:\ is not accessible. The disc structure is corrupted and unreadable"
  6. just read your post... Do you know of a place where I can go to get this resolved? Or a resource to do more digging?
  7. All I can suggest is to search for HFS+ data recovery software.

    http://www.google.com/search?q=hfs+%22data+recovery%22

    Otherwise try a Mac forum.
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