Hello, I have on debian /home mounted on raid1. Some time ago it was remounted as 'mount /dev/hda2 /home' instead of 'mount /dev/md0 /home'. Now when I umount it and try to mount /dev/md0, I see in dmesg: XFS mounting filesystem md(9,0) Starting XFS recovery on filesystem: md(9,0) (dev: 9/0) XFS: dirty log written in incompatible format - can't recover XFS: log mount/recovery failed XFS: log mount failed When mounting /dev/hda2 it succeeds. The question is - does mounting part of raid1 mirror when raid is still running do anything bad for a raid? How raid works in this situation - is it still mirroring info from /dev/hda2 to /dev/hdb2? If I raidstop and raidstart, can it damage filesystem? /proc/mdstat shows that everything is OK. Regards, Nerijus - 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