ZFS does that too, the top-level comment was just uninformed. You can shuffle your disks around, move them to other machines, and even move the contents to diff

ZFS does that too, the top-level comment was just uninformed. You can shuffle your disks around, move them to other machines, and even move the contents to different physical drives and ZFS will still automatically find them all using metadata written to the disks called the "zpool label".