Comment 4 for bug 219393

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jbfoley (jbfoley) wrote : Re: ich9R raid array not detected

I tried that the first time I saw this happen, because the "offline member" message when I rebooted made me think the raid had been broken by dmraid. On a later attempt, (when I actually had some data on that array to test) I tried a cold boot, and both Windows and the bios recognized the array as being healthy, with all data intact. (This array is on a new build, and it had always been built from scratch using this same board/bios) I'm willing to rebuild again to help figure this out, but only if there's a different method to try, as right now it would involve moving around a lot of data.

For some reason, what dmraid sees as broken, Intel's windows driver thinks is just fine, with both disks participating in the mirror and healthy. This is what makes me think that either Intel has changed the way it marks these RAIDs, or perhaps the chipset driver is slightly off, so that it reads these incorrectly. I *have* rebuilt this array more than once, so it *could* be reading one of those sets of info from an earlier attempt, but it threw up the same error after the very first build, and these were brand new drives at that point.

There was another bug with the ethernet controller on this board that caused Windows to turn the controller off on shutdown, and the ubuntu driver did not know how to turn it back on, so you needed to enable wake on lan in Windows or do a cold boot to turn ethernet back on. The first part of this bug seems almost like that in reverse, with the disks being offline after a warm boot from ubuntu.