I would throw bup[1] into the competition too. One pro over zbackup is the easier retrieval of single files. Bup uses the same rolling checksum method for dedup

I would throw bup[1] into the competition too. One pro over zbackup is the easier retrieval of single files. Bup uses the same rolling checksum method for dedupliation inspired by rsync but it uses git pack files to store the data. Some git functionalities are reimplemented to work with large number of files and large files. [1] https://github.com/bup/bup https://github.com/bup/bup edit: One huge con is that you can't prune old backup data. It's really early in development but it looks promising.