SOLVED: How do I direct passthru a ZFS Raid1 USB device to a TrueNAS score guest?

root@pvelab:~# df
<SNIP>
kyoudaiHD                    2726474496  762213376 1964261120  28% /mnt/giant
kyoudaiHD/archives           4291559040 2327297920 1964261120  55% /mnt/giant/archives
kyoudaiHD/backups            1964261248        128 1964261120   1% /mnt/giant/backups