You'll want to replace *start* and *size* with the output from 'gpt show disk1'. This removed the partition data, not the volume contents. I copied the output to textedit then ran removed the partition manually with this: Then I ran 'gpt show disk1' to list the partition data for '/dev/disk1'. The GUID-looking number in the contents refers to the type of partition, in my case 'Apple_RAID_Offline' (source: ) In my case it was '/dev/disk1' with an identifier of 'disk1s2' and an index of '2' and contents as 'GPT part - 52414944-5F4F-11AA-AA11-00306543ECAC'. In short, I ran 'diskutil list' from terminal and located a partition labeled 'Apple_RAID_Offline'. I searched for weeks, and finally found the answer here:

The volume was greyed-out in the Disk Utility GUI, and Drive Genius wouldn't touch it. No matter what I tried I couldn't get it to mount. When I saw the rebuild time was well over 3 days, I broke the mirror, thinking I would be able (as the message box indicated) use each drive separately.Īs it turns out, the enclosure died, and after I broke the mirror, neither volume would mount. I tried to rebuild the set, thinking it was just a logic error. The array was listed as degraded in Disk Utility. I was running a 2 x 2TB, RAID 1 on a FW800 enclosure, with over 600GB free. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.Recovering a RAID Drive that won't mount: FIXED!

If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.

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