tank/jail/jail1 280M 57,1G 280M /jail/jail1 tank/jail/jail2 280M 57,1G 280M /jail/jail2 tank/jail/jail3 280M 57,1G 280M /jail/jail3
# zfs snapshot tank/jail/jail1@today # zfs send tank/jail/jail1@today | ssh <hostname> zfs recv tank/jail2 # zfs set mountpoint=/jail/jail2 tank/jail2 # zfs rename tank/jail2 tank/jail/jail2