root@dtla:~# pvdisplay
  --- Physical volume ---
  PV Name               /dev/md0
  VG Name               vg_raid10
  PV Size               8.19 TiB / not usable 4.50 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              2146092
  Free PE               0
  Allocated PE          2146092
  PV UUID               0AxJB5-qUyJ-LmnO-k5CC-UohC-LQVO-nyt50B

root@dtla:~# vgdisplay
  --- Volume group ---
  VG Name               vg_raid10
  System ID
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  5
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                4
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               8.19 TiB
  PE Size               4.00 MiB
  Total PE              2146092
  Alloc PE / Size       2146092 / 8.19 TiB
  Free  PE / Size       0 / 0
  VG UUID               qrgDQj-XWDa-iiEj-MkTk-xuWF-Zi7c-a8RzhI

root@dtla:~# lvdisplay
  --- Logical volume ---
  LV Name                /dev/vg_raid10/boot
  VG Name                vg_raid10
  LV UUID                oh9ivM-ufpL-SMpu-8EA0-NL61-b9rp-YsEHBm
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                476.00 MiB
  Current LE             119
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     6144
  Block device           252:0

  --- Logical volume ---
  LV Name                /dev/vg_raid10/swap
  VG Name                vg_raid10
  LV UUID                M4G5yl-TONE-4nAG-3ESA-TW6n-7m5D-wgpcqA
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                14.90 GiB
  Current LE             3814
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     6144
  Block device           252:1

  --- Logical volume ---
  LV Name                /dev/vg_raid10/root
  VG Name                vg_raid10
  LV UUID                ok0OV9-aFIk-Oqvo-dkzF-3AIa-mE8w-LclWzL
  LV Write Access        read/write
  LV Status              available
  # open                 1
  LV Size                22.35 GiB
  Current LE             5722
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     6144
  Block device           252:2

  --- Logical volume ---
  LV Name                /dev/vg_raid10/srv
  VG Name                vg_raid10
  LV UUID                aeCIiD-fgl1-ZdV6-g3fo-H8zw-fjOq-8RmA4P
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                8.15 TiB
  Current LE             2136437
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     6144
  Block device           252:3