Backblaze and Tarsnap allow you to ship off your files to remote filesystems for relatively cheap. I personally have Syncthing on all my machines sharing a larg

Backblaze and Tarsnap allow you to ship off your files to remote filesystems for relatively cheap. I personally have Syncthing on all my machines sharing a large directory. My HTPC also keeps staggered backups of the data in case of data corruption, deletion or encrypting-malware. Used to have Spideroak, but it failed to sync files several times, so I left it.