ZFS wasn’t just new when FreeBSD 6 was released, ZFS wasn’t even released itself. :P FreeBSD 7 was the first release to support ZFS and even in that it was mar

ZFS wasn’t just new when FreeBSD 6 was released, ZFS wasn’t even released itself. :P FreeBSD 7 was the first release to support ZFS and even in that it was marked as experimental support. So if you were using ZFS before FreeBSD 8, and especially somehow on 6 and below, then you’re very much using ZFS at your own risk and can’t really complain if things go sideways.