#vgdisplay
--- Volume group ---
VG Name centos
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 6
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size <79.00 GiB
PE Size 4.00 MiB
Total PE 20223
Alloc PE / Size 20053 / 78.33 GiB
Free PE / Size 170 / 680.00 MiB
VG UUID 8Z8XEC-41tL-213t-LSaB-L3Cj-i62Y-bLsJtM
查看逻辑卷情况,默认三个,root、home和交换空间swap
# lvdisplay
--- Logical volume ---
LV Path /dev/centos/root
LV Name root
VG Name centos
LV UUID sDAdwy-U4md-l7IL-fszS-4dqk-AZ3s-SG5qjA
LV Write Access read/write
LV Creation host, time localhost, 2020-05-17 19:39:31 +0800
LV Status available
# open 1
LV Size <48.46 GiB
Current LE 12405
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:0