Try the following steps:
- Turn off the system and remove the “available” disk.
- Enter Intel® RAID Option Rom by pressing Ctrl + I during POST, before the operating system boots. Does the RAID 5 volume appear as “Degraded”?
- Turn off the system again and install the “available” disk. Make sure it is connected to a SATA port that belongs to the ICH10R (instead of third party SATA controller).
- Check again for the status of the disk and the RAID volume.
If the status of the RAID volume is “Degraded” there might be a problem with one of the member disks; however, if the status is “Failed” the RAID structure is damaged and it is not recoverable.
Was the suggestion helpful?
No, this didn't help - both before and after step 2 RAID5 is seen as Failed.
However, I managed to solve it following a (rather risky) guideline found somewhere on the net.
Basically, it involved destroying an entire array, re-creating it with exactly the same parameters and disk order, and using TestDisk recovery tool to find and recreate exactly same partitions.
Miraculously, it worked.
Usually, it is not possible to recover a “Failed” RAID volume. Would you share the link of the solution for other people who may encounter the same issue?