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How do I identify which RAID disk is faulty?

1120 Views 3 Replies 2 Participants Last post by  spunk.funk

I have a 2 disc Raid 1 mirror setup which was OK for awhile but now has problems in that my PC does not automatically boot to Windows, on start-up..

On start-up I am offered two options, either:
Windows 7 (when selected it just continually boot-loops, trying to repair without success).
Windows 7 Secondary Plex – (when selected, Windows starts OK).

When I remove either of the drives, Windows will not start. Am assuming because they are mirrored.

I do not know which (if either) is faulty or even which drive is which so I can "unmirror" the healthy one and remove the suspect drive for replacement.

Windows management shows both drives

Disk 0 has a "Healthy" System partition but a "Failed Redundancy" C partition.
Disk 1 has no System partition at all but a "Failed Redundancy" C partition.

I have taken a screen snip:

To further confusticate me, I took a peek at the Event Viewer which shows the “ID 11” fault as being with HardDisk2.

Yet Windows Disk Management shows my drives as being Disk 0 and Disk 1 (not Disk 2).

I'm guesstimating it refers to Disk 1 (in Disk Management) but cannot be sure (which also shatters my assumption that it was the first drive which had a fault through associating "Windows 7" as Disk 0 and "Windows 7 Secondary Plex" as Disk 1, at Start-Up.

Proper confused, so any advice sincerely appreciated!! Please help. :smile:
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Are you using a software RAID or a hardware RAID controller?
If you have a hardware RAID controller, the computer will take a few more seconds to load to by pass the RAID controller control panel. Here you can press a key combo to enter the RAID control panel before Windows boots. Sometimes this is CTRL+S. In the RAID control panel you can find out which drive is the faulty one and once you replace the drive, and here you can Rebuild the Array and not loose any data.
If you are using a software RAID, Windows recognizes the first boot drive as Drive 0. You motherboard may have not have a SATA port 0 but port SATA port 1, 2 etc. You can open the case and see where they are plugged in.
You are welcome! Please mark this thread Solved in the Thread Tools at the top.


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