Wait what? Only FreeBSD gives you ZFS on your boot/OS drive? What about OpenBSD / NetBSD / DragonflyBSD etc.?
EDIT: I love it that I get downvoted for asking a question. Seriously people, get a grip.
EDIT: I love it that I get downvoted for asking a question. Seriously people, get a grip.
But DragonflyBSD has Hammer2.