pvscan 
  PV /dev/sda2   VG storage         lvm2 [1,80 TiB / 0    free]
  PV /dev/sdb1   VG storage         lvm2 [1,82 TiB / 0    free]
  PV /dev/dm-0                      lvm2 [3,62 TiB]
  Total: 3 [7,24 TiB] / in use: 2 [3,62 TiB] / in no VG: 1 [3,62 TiB]
vgscan 
  Reading all physical volumes.  This may take a while...
  Found volume group "storage" using metadata type lvm2
lvscan 
  ACTIVE            '/dev/storage/storage' [3,62 TiB] inherit