  --- Logical volume ---
  LV Path                /dev/cpsVG/rootfs
  LV Name                rootfs
  VG Name                cpsVG
  LV UUID                N0XTpG-Adeg-x4d8-1VBb-idEy-IJcE-hDky6N
  LV Write Access        read/write
  LV Creation host, time Euler, 2018-06-21 19:22:21 +0800
  LV Status              available
  # open                 1
  LV Size                50.00 GiB
  Current LE             1600
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
   
  --- Logical volume ---
  LV Path                /dev/cpsVG/bak_rootfs
  LV Name                bak_rootfs
  VG Name                cpsVG
  LV UUID                E5ba6a-vOHm-3duc-ccEw-VTJZ-bSgX-Msu4Rh
  LV Write Access        read/write
  LV Creation host, time Euler, 2018-06-21 19:22:23 +0800
  LV Status              available
  # open                 0
  LV Size                50.00 GiB
  Current LE             1600
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1
   
  --- Logical volume ---
  LV Path                /dev/cpsVG/log
  LV Name                log
  VG Name                cpsVG
  LV UUID                hwIPLz-Cupk-h7LF-TGms-y9i6-2p9i-At2lNC
  LV Write Access        read/write
  LV Creation host, time Euler, 2018-06-21 19:22:24 +0800
  LV Status              available
  # open                 1
  LV Size                10.00 GiB
  Current LE             320
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:2
   
