Dragos wrote: > Thank you for your very fast answers. > > First I tried 'fsck -n' on the existing array. The answer was that If I > wanted to check a XFS partition I should use 'xfs_check'. That seems to > say that my array was partitioned with xfs, not reiserfs. Am I correct? > > Then I tried the different permutations: > mdadm --create /dev/md0 --raid-devices=3 --level=5 missing /dev/sda1 > /dev/sdb1 > mount /dev/md0 temp > mdadm --stop --scan > > mdadm --create /dev/md0 --raid-devices=3 --level=5 /dev/sda1 missing > /dev/sdb1 > mount /dev/md0 temp > mdadm --stop --scan > [etc] > > With some arrays mount reported: > mount: you must specify the filesystem type > and with others: > mount: Structure needs cleaning > > No choice seems to have been successful. OK, not as good as you could have hoped for. Make sure you have the latest xfs tools. you may want to try xfs_repair and you can use the -n (I think - check man page) option. You may need to force it to ignore the log David - 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