I have backups stored on a double mirror of USB drives. The USB interface is fragile, but it does work. I cannot say that I recommend USB drives though, but if

I have backups stored on a double mirror of USB drives. The USB interface is fragile, but it does work. I cannot say that I recommend USB drives though, but if you are using USB, ZFS is not at any disadvantage versus other filesystems. For what it is worth, I am this ryao: https://github.com/zfsonlinux/zfs/graphs/contributors https://github.com/zfsonlinux/zfs/graphs/contributors