Installation guide

Chapter 4. LVM Administration with CLI Commands

Argument Header Description

vg_free_count Free Number of free physical extents in the volume group

vg_name VG The volume group name

vg_seqno Seq Number representing the revision of the volume group

vg_size VSize The size of the volume group

vg_sysid SYS ID LVM1 System ID

vg_tags VG Tags LVM tags attached to the volume group

vg_uuid VG UUID The UUID of the volume group

The vgs command displays the following fields by default: vg_name, pv_count, lv_count,

snap_count, vg_attr, vg_size, vg_free. The display is sorted by vg_name.

# vgs

VG #PV #LV #SN Attr VSize VFree

new_vg 3 1 1 wz--n- 51.42G 51.36G

Using the -v argument with the vgs command adds the following fields to the default display:

vg_extent_size, vg_uuid.

# vgs -v

Finding all volume groups

Finding volume group "new_vg"

VG Attr Ext #PV #LV #SN VSize VFree VG UUID

new_vg wz--n- 4.00M 3 1 1 51.42G 51.36G jxQJ0a-ZKk0-OpMO-0118-nlwO-wwqd-fD5D32

The lvs Command

Table 4.3, “lvs Display Fields” lists the display arguments of the lvs command, along with the field

name as it appears in the header display and a description of the field.

Table 4.3. lvs Display Fields

Argument Header Description

chunksize

chunk_size

Chunk Unit size in a snapshot volume

copy_percent Copy% The synchronization percentage of a mirrored logical

volume; also used when physical extents are being

moved with the pv_move command

devices Devices The underlying devices that make up the logical

volume: the physical volumes, logical volumes, and start

physical extents and logical extents

lv_attr Attr The status of the logical volume. The logical volume

attribute bits are as follows:

Bit 1: Volume type: (m)irrored, (M)irrored without initial

sync, (o)rigin, (p)vmove, (s)napshot, invalid (S)napshot,

(v)irtual

Bit 2: Permissions: (w)riteable, (r)ead-only