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A7N8X series "incomplete RAID set" bug - my experiences and solution
Hi all,
I've just experienced a RAID 1 bug with my A7N8X-E Deluxe that caused me a lot of trouble. It was the "incomplete RAID set" bug that's been reported here a few times as I've noticed from Googling the newsgroups. However, none of the archived messages I saw mentioned the final outcome of the problem for the users who experienced it. Specifically, there was no report of whether or not the users had been able to recover their date. I am happy to report that I was able to recover my data. Because of this, I thought I'd report how I did so in the hope of helping someone else who might also be experiencing the same problem. The problem occurs completely out of the blue, with an error message at bootup that says "Incomplete RAID set! Please press Ctrl+S or F4 to enter RAID utility". When you try to enter the RAID utility, you get the message, "No device detected, Utility disabled! Press any key to continue...". Assuming the RAID 1 set is not the boot drive, you'll get a normal boot, but the logical RAID drive won't be seen. Because of this "Catch-22" situation, it appears that you're stuck - you need to get into the RAID utility to fix the problem, but can't because the machine won't let you. It turns out the problem is due to a buggy BIOS in that section of the BIOS that's provided to ASUS by the RAID chip vendor, Silicon Image. Some good documentation on this can be found at the URL below (watch for word wrap). http://groups-beta.google.com/group/... acc04b1759df This post indicates that Silicon Image updated their BIOS and has the Silicon Image version numbers of their corrected BIOS. The Silicon Image BIOS version numbers don't match the ASUS BIOS version numbers though. Because of this discrepancy, the poster, Paul, didn't know if the ASUS BIOS versions he posted actually had the Silicon Image fixes incorporated into them. He posted that version 1013 for the A7N8X0-E Deluxe was the latest. I downloaded and installed version 1013 for the A7N8X0-E Deluxe and it ended up fixing my problem, but not without jumping through several hoops to get there. I'll describe that next. In the text that follows, the text of the BIOS messages might not be exactly correct, as I didn't write them down. However, the basic ideas are there. After flashing this new BIOS and rebooting, I received a message to the effect that the RAID array had to be rebuilt, and that I should enter the RAID utility. I was glad the "incomplete RAID set" message went away. I entered the utility successfully, and chose the "rebuild now" option. I used the prompts on the right instead of the confusing selection, as it was impossible to tell which of the two menu items was really the selected one. The rebuild took a couple of hours for two 300 GB disks. I thought I'd be home free afterwards, but it was not to be. After rebooting again, I received a message something like "RAID array in critical state. Enter RAID utility". I entered the utility, which was a pain because it seemed the computer didn't want to trap the Ctrl-S keystroke. I had to try rebooting a few times for it to work. When I got back into the RAID utility, one of my disks was marked as "Current" and the other as "disconnected". Try as I might, there was nothing in the RAID utility that allowed me to remove the "disconnected" status from the second drive. I didn't have the guts to try the "Delete RAID set" option for fear of losing my data. I'm glad I didn't. Since one drive was marked as "Current", I tried rebooting into Windows, and lo and behold, Windows now recognized the drive and all my data was still there! But only one disk was active. I remembered seeing something somewhere about a GUI RAID utility. Turned out I had it on my disk. It's called "Java SATA RAID", which is bundled with the drivers for the Silicon Image RAID controller. I installed and ran it. Turns out this utility has tons more options than what's in the BIOS. There was an option to remove a drive from the RAID set. I did so. The drive was now no longer marked as "disconnected". I rebooted, hoping to be able to rebuild the RAID array in the BIOS utility. However, I got a nasty surprise, as the BIOS RAID utility just locked up on me. I powered off, then tried again a few more times with the same result. Turns out the GUI utility put the controller in a state that the BIOS utility didn't know how to get it out of. I re-ran the Java SATA RAID. This time, I chose the option to add the drive I had previously removed back in to the RAID set. After doing this, I rebooted again and got into the BIOS RAID utility. This time it worked fine, and allowed me the option to rebuild the RAID array again. I didn't have much confidence that this would fix the problem, since it didn't fully fix it the first time. I was also wondering whether the problem was due to having one bad drive. I chose to rebuild the RAID set. This also took about two hours. The result - fixed! No error messages at bootup. Both drives marked as "current". I've apparently not lost any data at all. So I am a happy camper now. Well, that's it. I hope the story of this little misadventure of minw helps someone out there who might rightfully be freaking out over this problem. Good luck, Andy |
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