RAID 5 Recovery

Tumelom · Jun 1, 2015

Hi Guys. Big Crisis here. I have an Intel RAID Controller, 8 Chanel with 8x 2TB Drives configured on RAID 5. I made a mistake of unplugging one of the drives and the booting up my machine. It then said RAID Configuration Degraded. By the looks of it, I had one drive failed already on the configuration before unplugging this other one in error. I then managed to bring both drives back online and the Utility showed Optimal Status. Now when I reboot, Windows wants to initialise this entire VD. It seems to see it as a new drive. Its 12.7TB of drive space and its filled to capacity. I cant lose all that data. Is there a way to fix this? I have not initialised it.
I'm using Windows 8.1 64bit on an AMD APU System.

Mattios · Jun 1, 2015

You need to look into professional data recovery. You can't trust what people say on forums with this data that you cannot lose.

Moral of the story = RAID 5 on the same computer is not a backup.

FireWire2 · Jun 1, 2015

Yes you can do it. but you have to be patience!
As long as you did not initialize it, you can recover your data...

1) Boot from Linux and use mdadm command to reconstruct your raid5's raid meta data - lot of learning
Here is the correct and safe way to do it.
Image copy of each drive to a new hard drive. Use copied HDDs to recover your data. DO NOT attempt to recover data DIRECT from original HDD

2) Recover data place - cost you money

S Haran · Jun 2, 2015

Recovery should be possible but it will be a challenge. You can try RAID recovery software like R-Studio. Note you will need to know the correct drive order, stripe size, parity etc

Linux / mdadm won't help you much as you are not using Linux Software RAID.

If you need help shoot me a PM.

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RAID 5 Recovery

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