Rajen R
2010-02-22 05:50:41 UTC
I have an asus p5k motherboard with Jmicron RAID. JMB36X I think.
I have 2 SATA 500gb drives linked to the raid, in a mirror mode.
I have a 160gb disk with Windows 7 on it.
One day, when starting the computer, at the POST, there was a red notice saying the RAID was degraded.
Windows 7 loaded, and when I clicked on the D: drive (which is the raid pair), and it said it did not know the structure and that the disk needs formatting.
So I restarted the computer, and the degraded message had changed to REBUILD.
Windows 7 loaded. From my motherboard disc, I installed the RAID configuration utility. I ran this program, and the message came up saying the data needs to be re-synchronized.
I resynch'ed the data, and when it finished, it said Success.
I restarted the computer, and the POST message said "Mirror", or whatever is usually displayed under normal circumstances.
Windows 7 loaded, and I still cannot access the drive. Windows says it needs to be reformatted.
I switched off. Pulled both disks out. Used a USB connector and attached them to ANOTHER PC, one at a time. Windows still gave the "need to reformat" message and refused to read the data.
I am now using Captain Nemo to restore (or backup) the data, as it is reading it okay.
Any ideas what happened?
Surely a RAID 1 is to prevent data loss? Is it possible that if one drive is corrupt, it will mirror onto the other?