# http://docs.sun.com/app/docs/doc/819-5461/gayns?a=view

root@opl:~# zfs create zfs/install

root@opl:~# zfs set compression=on zfs/install

root@opl:~# zfs list zfs/install
NAME          USED  AVAIL  REFER  MOUNTPOINT
zfs/install    18K  18.8G    18K  /zfs/install