Dear Raid Gurus! I described in my last post that when I physically removed one of the two mirror drives from my raid 1 /dev/md0 /dev/hdb1 /dev/hdg1 in the most direct way possible (shut down machine and removed it), where /dev/md0 is mounted in an optional part of the Linux file system (ie a (non LHS compliant) mount point I call /big :) ) I was unable to figure out how to make my system boot normally- ie boot - start the raid device - mount it via /etc/fstab in usual way. I found that I needed to: manually invoke mdadm -A --run /dev/md0 /dev/hdb1 and then i could do mount -t ext3 /dev/md0 /big or else my system drops to single user repair mode when it can't start /dev/md0 and it tries to run fsck.ext3 on the nonexistent mount point /big if it is present in /etc/fstab I have been thinking about this, and reading on the net via google. I know that it is nonstandard to do this crazy thing I am doing. Typically after a drive "failure" you simply 1) replace /dev/hdg1, 2) run fdisk /dev/hdg and create a partion with a superblock perhaps zero any pre-existing superblock on /dev/hdg1 with mdadm --zero-superblock /dev/hdg1 3) then do mdadm -a /dev/md0 /dev/hdg1 and wait till it resyncs. However in my case i want to run the raid without a backup - because by taking the mirror off line I am better off (perhaps). If I have a mirror off line this is good enough for me - and better in this case cause it is not potentially corrupted by power surges and disaster of everyday life. Also I am adding a new additional raid device /dev/md2 which needs to be mirrored as it is getting fresh data in.... so I want to use that cable location for that new mirrored raid device. So is there a way to do this or must i set up a separate init script of my own to do this --run initiallization after the regular boot is completed (dumb ...). Thanks !! Mitchell Laks - 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
