lvdisplay output on ubuntu12.04

root@root:~# lvdisplay
  --- Logical volume ---
  LV Name                /dev/matterhorn/root
  VG Name                matterhorn
  LV UUID                eSsy0O-4Sth-uGgF-h39V-XrNr-OZYq-y6msmi
  LV Write Access        read/write
  LV Status              NOT available
  LV Size                1.36 TiB
  Current LE             355590
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto

  --- Logical volume ---
  LV Name                /dev/matterhorn/swap_1
  VG Name                matterhorn
  LV UUID                16aIix-uKmc-yELx-UtCw-huvZ-5DwB-q3f0bf
  LV Write Access        read/write
  LV Status              NOT available
  LV Size                7.96 GiB
  Current LE             2037
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto