root@host:~# pvscan
  PV /dev/md2   VG pve   lvm2 [111.22 GiB / 13.80 GiB free]
  Total: 1 [111.22 GiB] / in use: 1 [111.22 GiB] / in no VG: 0 [0   ]

root@host:~# pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/md2   pve  lvm2 a--  111.22g 13.80g

root@host:~# vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group "pve" using metadata type lvm2

root@host:~# vgs
  VG   #PV #LV #SN Attr   VSize   VFree
  pve    1   3   0 wz--n- 111.22g 13.80g

root@host:~# lvscan
  ACTIVE            '/dev/pve/swap' [4.00 GiB] inherit
  ACTIVE            '/dev/pve/root' [27.75 GiB] inherit
  ACTIVE            '/dev/pve/data' [65.67 GiB] inherit

root@host:~# lvs
  LV   VG   Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  data pve  -wi-ao---- 65.67g
  root pve  -wi-ao---- 27.75g
  swap pve  -wi-ao----  4.00g

root@host:~# cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sdb2[1] sda2[2]
      521920 blocks super 1.2 [2/2] [UU]

md2 : active raid1 sdb3[1] sda3[2]
      116630400 blocks super 1.2 [2/2] [UU]

unused devices: <none>

root@host:~# fdisk -l /dev/sda

Disk /dev/sda: 111.8 GiB, 120034123776 bytes, 234441648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 8DA42E5E-E8AB-4427-B8E2-D408823420AE

Device       Start       End   Sectors   Size Type
/dev/sda1     2048      4095      2048     1M BIOS boot
/dev/sda2     4096   1048575   1044480   510M EFI System
/dev/sda3  1048576 234440703 233392128 111.3G Linux LVM

root@host:~# fdisk -l /dev/sdb

Disk /dev/sdb: 149.1 GiB, 160041885696 bytes, 312581808 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: BC616E85-A592-44B4-BE6B-1A5799847645

Device       Start       End   Sectors   Size Type
/dev/sdb1     2048      4095      2048     1M BIOS boot
/dev/sdb2     4096   1048575   1044480   510M EFI System
/dev/sdb3  1048576 234440703 233392128 111.3G Linux LVM