We've handled backup with Duplicity for various things, and found it useful. If you go with this one, do be aware that by its nature, restores when you've done

We've handled backup with Duplicity for various things, and found it useful. If you go with this one, do be aware that by its nature, restores when you've done a lot of incremental backups can be extremely slow. (Think hours, where other systems would retrieve the data in minutes if not seconds.) That means you really need to be a doing a full, and therefore also slow, backup reasonably frequently to keep Duplicity usable. As a rule of thumb, we found a full backup each month and dailies each night was just about tolerable even if you needed a restore quite late in the month, but even then a 10GB backup with 30 days of incrementals on top could be looking at an hour or more to retrieve a single file. As I understand it, Duplicity's scheme can also be vulnerable to minor corruption (e.g., due to disk error) anywhere since your last full backup taking out the entire backup, so if you're going to use it then you might like to investigate the options it provides for mitigating this risk as well.