[dspillett]

> I don’t see anything about encryption.

Many prefer to deal with encryption separately, encrypting the volumes being backed up to rather than relying on the backup system to manage that.

Of course this adds a consideration to your system: how to backup your encryption keys, and use them to remount the volumes when needed, in a way that does not render the whole thing pointless by accidentally exposing your keys to the wild. Then again, the encryption included in many backup systems has these issues for you to resolve too.