This is why I always buy storage in threes: Two drives for ZFS mirrored RAID, one for offline backup, and a really basic rsync script.
Three drives crapping out simultaneously is rare enough that you can pretty much pretend it will never happen. And if you are still worried, there's always online backup services.
Three drives crapping out simultaneously is rare enough that you can pretty much pretend it will never happen. And if you are still worried, there's always online backup services.