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Old 04-10-2003, 09:04 PM   #1
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Registered: Nov 2002
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need help to recover my RAID 1

Hi, my RAID-1 consists of two paritions hda3 and hdb3 which are identical in size.
The first disk has lost EVERYTHING on the hda3 partition. I put a new ext3 filesystem on it and its blank.

Now I have a blank hda3. However, /dev/hdb3 still has all of the original contents. I would like to make /dev/hda3 and b3 a RAID-1 again but now when I boot it fails to recognize /dev/md0 as a valid RAID device. (of course)

All the tutorials I've seen tell you to rebuild a RAID (referring to RAID-5 as far as I can tell), just talk about replacing a disk that failed, putting it back into the system, and using the raidhotadd command. However, that won't work for me since my raid system has only 2 disks, and only one of them, hdb3, still has its raid configuration. So i can't even raidstart, much less raidhotadd anything.

Any ideas? How are RAID-1's usually recovered?

My only idea is: dd if=/dev/hdb3 of=/dev/hda3


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