I'd really like to talk about the fragility of the inbuilt backup system.
There is a red box on my server-manager telling me that I have too much data on the server for a reliable backup to a desktop. 2Gb of data is what is to be backed up, and has been successfully running for a long time. Naturally the quantity of data is increasing every day.
Currently I'm investigating the bacula addons as a better solution to my backup needs. In the meantime I'll use rsync, an old friend.