rsync-backup-ras

Rsync-backup is a wrapper for rsync that turns it into a fully featured
backup program. It creates simple copies of the directory trees backed up
that can be restored using traditional tools like cp, scp and rsync.
It can backup to local file systems or remote ones accessible via ssh.
It de-duplicates data, and can creates multiple aged copies that can be
pruned in several ways to fit in within space limitations.