My 1.5TB SW RAID5 array is hosed because my motherboard stopped recognizing drives on two of its controllers. I have moved drives around so that they are all recognized now, but the drive names have all changed, and even though I've tried all combinations nothing seems to work. I have run out of troubleshooting tools. Please help! Here's what I had before the crash: Motherboard IDE Controller bus 0: One 250GB drive Motherboard IDE Controller bus 1: One 250GB drive SIS IDE Controller 1 bus 0: One 250GB drive SIS IDE Controller 1 bus 1: One 250GB drive SIS IDE Controller 2 bus 0: One 250GB drive SIS IDE Controller 2 bus 1: One 250GB drive SIS IDE Controller 3 bus 0: One 250GB drive SIS IDE Controller 3 bus 1: nothing These drives came up something like hda, hdi, hdh, hdk, hdm, hdn, hdp, but I don't know which physical drive got which name. I had one 240GB partition from each drive mapped to the RAID5 array md0 in /etc/raidtab. When the machine hanged, I found that the bios was not recognizing both the SIS IDE Controller 1 drives and the SIS IDE Controller 3 drive. These drives were hda, hdi, and hdk (I only know this because they were inaccessible after linux booted). So I moved the drives that were on SIS Controller 1 and 3 onto SIS Controller 2 and the Motherboard controller. I know that having two drives on the same bus is a huge performance hit, but I just want my data back!!! On boot, all drives were recognized, but now their names are different, so I figured all I need to do is edit /etc/raidtab to reflect the new drive names. Is that right? Anyway, using fdisk I discovered that the drives' new names were hde, hdg, and hdo. Since I didn't know what physical drive had what logical name before or after the switch, I tried all six combinations. For example, the first thing I tried was to do the following in /etc/raditab: s/hda/hdo/ s/hdi/hde/ s/hdk/hdg/ I saved raidtab, and rebooted, but the array was not recognized by the kernel and so I repeated the swap with all six possible combinations. None of them worked. Now I'm out of ideas. How can I reconstruct my raid array? This data is very important to me, so any help you might have would be highly appreciated. Thanks! Dave - 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
