Personally, I use zfs on my home server. All my other machines rsync to a backups folder on there, and once a month a scheduled email reminds me to grab my back

Personally, I use zfs on my home server. All my other machines rsync to a backups folder on there, and once a month a scheduled email reminds me to grab my backup usb hard drive and do a zfs send | recv to sync for an offline backup. If you were using an untrusted server as a zfs send target, as of a few months ago, you can actually do an encrypted send to a remote without unlocking on the remote, which is pretty cool.