rdiff-backup is a really nice tool for backing up Linux servers.
One problem, though, is logrotation: Since rdiff-backup doesn't know how to detect renamed files, every daily backup contain a complete copy of all rotate log files.
A possible fix would be to convert the logrotate configuration to use a
dateext filename scheme with static filenames (like e.g. wtmp-20110301).
I'm thinking about converting our servers to this scheme, in order to save a couple of GB per week in our backup.
Could you think of any major drawbacks of a complete conversion of logfile rotation to a