Red Hat ENTERPRISE LINUX 4 - LVM ADMINISTRATOR Manual page 56

Chapter 4. LVM Administration with CLI Commands
Argument
pv_uuid
Table 4.1. pvs Display Fields
The pvs command displays the following fields by default: pv_name, vg_name, pv_fmt, pv_attr,
pv_size, pv_free. The display is sorted by pv_name.
# pvs
PV VG
/dev/sdb1 new_vg lvm2 a-
/dev/sdc1 new_vg lvm2 a-
/dev/sdd1 new_vg lvm2 a-
Using the -v argument with the pvs command adds the following fields to the default display:
dev_size, pv_uuid.
# pvs -v
Scanning for physical volume names
PV VG
/dev/sdb1 new_vg lvm2 a-
M7iv-6XqA-dqGeXY
/dev/sdc1 new_vg lvm2 a-
IdwM-01S9-XO8M-mcpsVe
/dev/sdd1 new_vg lvm2 a-
dECm-0RZ3-0dGW-tUqkCS
You can use the --segments argument of the pvs command to display information about each
physical volume segment. A segment is a group of extents. A segment view can be useful if you want
to see whether your logical volume is fragmented.
The pvs --segments command displays the following fields by default: pv_name, vg_name,
pv_fmt, pv_attr, pv_size, pv_free, pvseg_start, pvseg_size. The display is sorted by
pv_name and pvseg_size within the physical volume.
# pvs --segments
PV VG
/dev/hda2 VolGroup00 lvm2 a-
/dev/hda2 VolGroup00 lvm2 a-
/dev/hda2 VolGroup00 lvm2 a-
/dev/sda1 vg
/dev/sda1 vg
/dev/sda1 vg
/dev/sda1 vg
/dev/sda1 vg
/dev/sda1 vg
/dev/sda1 vg
/dev/sda1 vg
/dev/sdb1 vg
44
Header Description
PV UUID The UUID of the physical volume
Fmt Attr PSize
17.14G 17.14G
17.14G 17.09G
17.14G 17.13G
Fmt Attr PSize
17.14G 17.14G
17.14G 17.09G
17.14G 17.13G
Fmt Attr PSize
37.16G 32.00M
37.16G 32.00M
37.16G 32.00M
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 16.75G
lvm2 a- 17.14G 17.14G
PFree
PFree DevSize PV UUID
17.14G onFF2w-1fLC-ughJ-D9eB-
17.14G Joqlch-yWSj-kuEn-
17.14G yvfvZK-Cf31-j75k-
PFree Start SSize
0
1172
1188
0
26
50
76
100
126
150
172
0
1172
16
1
26
24
26
24
26
24
22
4217
4389