sda 8:0 0 10G 0 disk
├─sda1 8:1 0 4G 0 part /data1
├─sda2 8:2 0 2G 0 part
└─sda3 8:3 0 2G 0 part
vda 252:0 0 20G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 1G 0 part /boot
└─vda3 252:3 0 19G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 19G 0 lvm /
root@yangqi:/data1# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 lvm2 --- 2.00g 2.00g
/dev/sda3 lvm2 --- 2.00g 2.00g
/dev/vda3 ubuntu-vg lvm2 a-- <19.00g 0
root@yangqi:/data1# vgcreate testvg /dev/sda2 /dev/sda3
Volume group "testvg" successfully created
root@yangqi:/data1# vgs
VG #PV #LV #SN Attr VSize VFree
testvg 2 0 0 wz--n- 3.99g 3.99g
ubuntu-vg 1 1 0 wz--n- <19.00g 0
root@yangqi:/data1#
└─sda4 8:4 0 1G 0 part
vda 252:0 0 20G 0 disk
├─vda1 252:1 0 1M 0 part
├─vda2 252:2 0 1G 0 part /boot
└─vda3 252:3 0 19G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 19G 0 lvm /
root@yangqi:/data1# vgextend testvg /dev/sda4
Physical volume "/dev/sda4" successfully created.
Volume group "testvg" successfully extended
root@yangqi:/data1#