Comment 20 for bug 219393
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| Phillip Susi (psusi) wrote Re: ich9R raid array not detected | #20 |
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0e1f616
(Get the code!)
Have you tried updating your bios yet? I also notice that the version recorded in the signature is rather old.
According to Intel, the metadata is supposed to reside in the last two sectors of the disk. Based on the incorrect position and the incorrect disk size I noted that was recorded before, it appears that your bios has a bug where it sometimes can not correctly determine the size of that disk.
I have a suspicion that the bios may be issuing commands to hide the tail end of the one disk, which the Linux kernel resets, causing the metadata to appear in the wrong position and the bios and windows don't recognize the disk after a warm boot because it does not reapply the hide command.
Another strange thing is that originally the signature was in the correct place and dmraid found it, but the disks did not agree on the size. What changed between the time you originally created the array, and when you recreated it with the signature now in the wrong place? Odd.