snapraid: snapraid - backup program
snapraid:
snapraid: SnapRAID is a backup program for disk arrays. It stores parity
snapraid: information of your data and it recovers from up to six disk
snapraid: failures.
snapraid: 
snapraid: SnapRAID is mainly targeted for a home media center, where you
snapraid: have a lot of big files that rarely change.
snapraid:
snapraid:
snapraid: http://snapraid.sourceforge.net/