Hi Bill, Bill Davidsen wrote: > Martin MOKREJŠ wrote: >> Hi everybody, >> >> That is what happened to me. Two disks are not in an ICH9R array but are >> in raid0 under mdadm. Four disk are under raid10 under ICH9R while also >> under raid10 under mdadm. >> > > Could you clarify that last sentence? It sounds as if you have two > independent arrays, using a controller for one and mdraid for the other, > and they both use the same drives. Please tell me I'm misreading this... No, you read it correctly. ICH9R controller has 6 disks connected. First two do not have configured array "in BIOS" while latter 4 do have (RAID10). That was my surprise as the machine uses md-array (the first two disks /dev/sd[a-b]1 in raid1, 0.9 superblock) while the latter four /dev/sd[c-f]1 as raid10 (0.9 superblock as well). In other words, the four disks in raid10 are assigned twice, onder to ICH9R while also to md-raid10. I think that once I configured the BIOS stuff but used subsequently mdadm to create the array under linux. Thus I believe I overwrote the "imsm" superblock without even knowing (but then ICH9R BIOS would not report the RAID10 spanning the four disks nowadays, right?). Thanks, Martin -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html