LV     VG                   Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  dummy  arndale-westfield-vg -wi-a----- <444.34g                                                    
  root   arndale-westfield-vg -wi-ao----   18.62g                                                    
  swap_1 arndale-westfield-vg -wi-ao----   <1.86g