I have 3 physical drives installed on my Oneiric workstation, one for /, one for /home and one for /var. All 3 drives have 1 partition ext4 formatted.
I also have some external drives for backing up the data (manually). Now I would like to add a 4th internal drive and schedule a backup job for the entire machine (system+configuration and data) daily or hourly.
Should any of the drive fail I would like to be able to get the system back up just reinstalling GRUB or mounting the missing directory.
What tool(s) is better fitted for that? Would rsyinc do? In that case what parameters should I use to make sure everything stays in sync?