Comment by flopska

I'm using ZFS on my home server. The backups of my main system are created with the ubuntu desktop utility and written to the server via NFS. This means I have incremental backups and the backups themselves are protected from a hardware failure using raidz. A problem with this approach is the possibility to rm -rf /mnt/backup - that's why I only start and mount the server when I need it. It's not running 24/7.