Hello, we have a serious problem with the following configuration: - 2 ide disks on separate ide channels on an ASUS-A7V board (hde/hdg) - Red Hat Linux 7.2 with Kernel 2.4.7 We initialized the array with two partitions /dev/hde1 and /dev/hdg1 of the same size (both type 0x83) with mkraid /dev/md0 (no problems). This was last year in January or so. Then one of the disks crashed and gave us the according output in /proc/mdstat so we replaced the faulty disk (but with a bigger size, because there was no smaller disk available anymore). We didn't create any partitions on the new disk and made a raidhotadd /dev/md0 /dev/hdg --> everything was okay again (only fdisk /dev/hdg said that /dev/hdg did not contain a valid partition table). Then the second of the disks crashed and we did the same procedure by replacing it with the now repaired one from the first disk crash, so it was replaced with the same size. After raidhotadd /dev/md0 /dev/hde everything was running again. (the two operational "partitions" were now /dev/hde and /dev/hdg) Yesterday we had to reboot the server, and when it wanted to mount the raid device it said: ------------SNIP------------------------ Partition check: hda: hda1 hda2 < hda5 hda6 hda7 > hde: unknown partition table hdg: unknown partition table ------------SNIP------------------------ md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. ------------SNIP------------------------ but then there was a message (we do not have it exactly, because the logs were not written to disk due to that the server did not startup correctly) like: md0 --> wrong argument, md0 is not a valid raid device (or so) Give root password for maintenance or CONTROL-D to reboot. In the shell where we were dropped we could do a mount /some_dir /dev/hdg --> this gave us our data back. But thats only a temporary solution, because I am not able to construct a raid array again (I have no spare disk available for moving the lots of data there). mkraid is refusing to create an raid array with only one disk. What are our options? Thank you in advance. Daniel Paul (paul@bitubi.de) - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
