Yup. Use mdadm to do RAID5, 6 or 10 and let it sit in your friend's place as a target for encrypted snapshots; do the same in exchange and you both have reliabl

Yup. Use mdadm to do RAID5, 6 or 10 and let it sit in your friend's place as a target for encrypted snapshots; do the same in exchange and you both have reliable offsite backups. If you need a big restore, go get the machine physically and bring it back to your network for full gigabit speeds.