Displays information about volume groups.
lsvg [ -L ] [ -o ] | [ -n DescriptorPhysicalVolume ] | [ -i ] [ -l | -M | -p ] VolumeGroup ...
The lsvg command displays information about volume groups. If you use the VolumeGroup parameter, only the information for that volume group is displayed. If you do not use the VolumeGroup parameter, a list of the names of all defined volume groups is displayed.
When information from the Device Configuration database is unavailable, some of the fields will contain a question mark (?) in place of the missing data. The lsvg command attempts to obtain as much information as possible from the description area when the command is given a logical volume identifier.
Note: To determine a volume group's major number, use the ls -al /dev/VGName command. This command lists the special device file that represents the volume group. The volume group major number is the same as the major device number of the special device file. For example, for a volume group named ha1vg, enter the following command:ls -al /dev/ha1vgThis command returns the following:
crw-rw---- 1 root system 52, 0 Aug 27 19:57 /dev/ha1vgIn this example, the volume group major number is 52.
You can use the Volumes application in Web-based System Manager (wsm) to change volume characteristics. You could also use the System Management Interface Tool (SMIT) smit lsvg fast path to run this command.
Information displayed if you do not specify any flags:
Volume group | Name of the volume group. Volume group names must be unique systemwide and can range from 1 to 15 characters. |
Volume group state | State of the volume group. If the volume group is activated with the varyonvg command, the state is either active/complete (indicating all physical volumes are active) or active/partial (indicating some physical volumes are not active). If the volume group is not activated with the varyonvg command, the state is inactive. |
Permission | Access permission: read-only or read-write. |
Max LVs | Maximum number of logical volumes allowed in the volume group. |
LVs | Number of logical volumes currently in the volume group. |
Open LVs | Number of logical volumes within the volume group that are currently open. |
Total PVs | Total number of physical volumes within the volume group. |
Active PVs | Number of physical volumes that are currently active. |
VG identifier | The volume group identifier. |
PP size | Size of each physical partition. |
Total PPs | Total number of physical partitions within the volume group. |
Free PPs | Number of physical partitions not allocated. |
Alloc PPs | Number of physical partitions currently allocated to logical volumes. |
Quorum | Number of physical volumes needed for a majority. |
VGDS | Number of volume group descriptor areas within the volume group. |
Auto-on | Automatic activation at IPL (yes or no). |
Concurrent | States whether the volume group is Concurrent Capable or Non-Concurrent Capable. |
Auto-Concurrent | States whether you should autovary the Concurrent Capable volume group in concurrent or non-concurrent mode. For volume groups that are Non-Concurrent Capable, this value defaults to Disabled. |
VG Mode | The vary on mode of the volume group: Concurrent or Non-Concurrent. |
Node ID | Node id of this node if volume group is varied on in concurrent node. |
Active Nodes | Node ids of other concurrent nodes that have this volume group varied on. |
Max PPs Per PV | Maximum number of physical partitions per physical volume allowed for this volume group. |
Max PVs | Maximum number of physical volumes allowed in this volume group. |
LTG size | Logical track group size, in number of kilobytes, of the volume group. |
BB POLICY | Bad block relocation policy of the volume group. |
SNAPSHOT VG | Snapshot volume group name if the snapshot volume group is active else snapshot volume group identifier. |
PRIMARY VG | Original volume group name of a snapshot volume group if the original volume group is active else original volume group identifier. |
lsvg
lsvg vg02
The characteristics and status of both the logical and physical partitions of volume group vg02 are displayed.
/usr/sbin | Contains the directory where the lsvg command resides. |
The chvg command, lspv command, lslv command, varyonvg command.
Logical Volume Storage Overview in AIX 5L Version 5.2 System Management Concepts: Operating System and Devices explains the Logical Volume Manager, physical volumes, logical volumes, volume groups, organization, ensuring data integrity, and allocation characteristics.
For information on installing the Web-based System Manager, see Chapter 2: Installation and System Requirements in AIX 5L Version 5.2 Web-based System Manager Administration Guide.
System Management Interface Tool (SMIT): Overview in AIX 5L Version 5.2 System Management Concepts: Operating System and Devices explains the structure, main menus, and tasks that are done with SMIT.