cat /proc/mdstats. On Tue, Oct 21, 2008 at 6:40 PM, Morgan Wahl <morgy.wahl@xxxxxxxxx> wrote: > these lines are the only uncommented ones in mdadm.conf: > DEVICE /dev/sd[abcd]1 > ARRAY /dev/md0 devices=/dev/sda1,/dev/sdb1,/dev/sdc1,/dev/sdd1 > > mdadm -Q /dev/md0 > mdadm --examine /dev/sda1 > mdadm --examine /dev/sdb1 > mdadm --examine /dev/sdc1 > mdadm --examine /dev/sdd1 > > mdadm /dev/md0 --remove /dev/sdc1 > > mdadm -A /dev/md0 > > mdadm --readonly /dev/md0 > > mount /dev/md0 /mnt/temp > (this return an error) > e2fsck -n /dev/md0 > (lots of errors) > > On Tue, Oct 21, 2008 at 12:31 PM, Raz <raziebe@xxxxxxxxx> wrote: >> Please provide the exact sequence of operations. what mdadm command >> did you use at each phase ? Did you try to mount it rw ? >> >> On Tue, Oct 21, 2008 at 6:15 PM, Morgan Wahl <morgy.wahl@xxxxxxxxx> wrote: >>> yesterday I had a problem with the SATA bus one of my drives is on, >>> which i've since fixed. I have a raid5 on four 20GB partitions (each >>> on it's own drive, of course). The one that failed was sdc1. when i >>> rebooted, the raid was no longer active (according to `mdadm -Q >>> /dev/md0`). I ran `mdadm --examine ` on each drive. For sdc1 it said >>> everything was fine, but for the other three drives sdc1 was marked as >>> failed. I've never recovered from a drive failure before and I don't >>> think I did it correctly. I removed sdc1 from the raid and then >>> incrementally added it again. (I now realize I should've started the >>> raid with it removed and done a backup.) I started the raid again with >>> all four drives, and put it in readonly mode and tried to mount it, >>> but it presumably still isn't set up right since it refuses to mount >>> and `e2fsck -n` returns myriad errors. >>> >>> Did starting the raid with the bad disk destroy everything? did it >>> only destory a little (assuming fsck can get the filesystem back into >>> a useable state)? How can I even find out what's wrong? I do have a >>> separate terabyte disk that i've copied images of the disks to, so I >>> can perform experiment on them, but I'm not sure what to do. >>> >>> Help! Please! >>> >>> -Morgan >>> -- >>> 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 >>> >> > -- > 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 > -- 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
