% /usr/sbin/zfs list
NAME                      USED  AVAIL  REFER  MOUNTPOINT
tank                     5.00G  39.0G  32.5K  legacy
tank/b62                 3.77G  39.0G  3.66G  legacy
tank/b62@working             0      -  3.66G  -
tank/b62/export            19K  39.0G    19K  legacy
tank/b62/export@working      0      -    19K  -
tank/b62/opt               18K  39.0G    18K  legacy
tank/b62/opt@working         0      -    18K  -
tank/b62/var              112M  39.0G   112M  legacy
tank/b62/var@working      386K      -   112M  -
tank/home                 472M  39.0G    19K  /export/home
tank/home/jason           472M  39.0G   472M  /export/home/jason
tank/local               32.0M  39.0G  32.0M  /usr/local
tank/on20070423          37.5K  39.0G  3.66G  legacy
tank/on20070423/opt          0  39.0G    18K  legacy
tank/on20070423/var          0  39.0G   112M  legacy
tank/onbld               17.6M  39.0G  17.6M  /opt/onbld
tank/spro                 740M  39.0G   740M  /opt/SUNWspro
tank/swapvol             1.03M  39.0G  1.03M  -