On Tue, 2003-11-25 at 16:02, list@xxxxxxxxxxxxxxx wrote: > Forrest, > Thanks for taking the time to do a real simulation of what would happen. I have > a backup server in place at a different facility that can take over, but that > would require a DNS change that not all ISP's will obey. > > This is a very strange situation, and I have learned that before shipping off a > machine one should always make sure that if a drive is lost everything will > occur as expected. These are the results that I got, and they may differ from what you get, because I cannot really simulate exactly what you have (I am not sure why sda is not part of the array). I created a RAID 1 array for / and /home. I then turned off the machine and unplugged one of the disks. When I turned it back on, it booted up properly, and I saw something similar in /proc/mdstat that you had--only one disk show up. In /var/log/messages, I get a message at boot time that says: md0: former device sda1 is unavailable, removing from array! I created a RAID partition and I added it to the array: raidhotadd /dev/md0 /dev/sdb5 Then I can cat /proc/mdstat and see md0 is rebuilding (recovery = %) It may have been possible that sda was knocked loose during shipping/mounting, and it wasn't working at boot time. Someone may have noticed this, and reseated the drive. This would explain why sda is not a part of the array, but you can see it with fdisk. Anyway, in another terminal, do `tail -f /var/log/messages` to see the kernel messages, and try: raidhotadd /dev/md0 /dev/sda1 raidhotadd /dev/md1 /dev/sda2 Check /proc/mdstat to verify that they are rebuilding. If so, you should be good to go. Forrest -- Shrike-list mailing list Shrike-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/shrike-list
