Comment 14 for bug 219393

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

I tried breaking the array, reformatting both drives with mkfs (ext2) and then rebuilding the array. This time dmraid would only see one drive of the mirror, and not the other one. I'm including my info dump in a text file.

Perhaps this version of the Intel driver only needs to mark one drive? Seems like it wouldn't work if one drive failed in that case. Other possibility is that it's putting the mark in a different spot on the second drive, but that also seems unlikely. It really looks to me like there is a bug preventing dmraid from finding the correct marker on the second drive.

I should mention that I booted ubuntu immediately after the array build in this case, but after I did all of the stuff you seen in the text dump, I cold booted to windows and the array came up as healthy and happy. I then initialized it for windows and formatted it ntfs, then rebooted and tried ubuntu again, but there was no change, except that the ext2 filesystem that had been visible on each individual drive is now inaccessible, and only one 500 gig device shows, instead of both, but it is also unmountable.

Also, watchwolf, I am using the rc14 version of dmraid, so it looks like that is not the fix for my problem:
joe@Cosmos:~$ dmraid -V
dmraid version: 1.0.0.rc14 (2006.11.08)
dmraid library version: 1.0.0.rc14 (2006.11.08)
device-mapper version: unknown