* SystemRescue 3.1.1 changes disk naming from /dev/cciss/c0dx to /dev/sdy (e.g. /dev/cciss/c0d0p2 → /dev/sda2).
Node backup:
root@uclu2:~# crm node standby uclu2 root@uclu2:~# reboot [insert SystemRescue USB]
From SystemRescue:
# mount /dev/sdc2 /mnt/backup # fsarchiver -vo savefs /mnt/backup/uclu2.fsa /dev/sda1 # umount /mnt/backup # reboot [remove SystemRescue USB]
* After DRBD package update:
It is very important to remove startup script BEFORE reboot to avoid cluster re-sync and/or spli-brain:
# update-rc.d -f drbd remove