Displays information about volume groups.
lsvg [ -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/ha1vg
This command returns the following:crw-rw---- 1 root system 52, 0 Aug 27 19:57 /dev/ha1vg
In this example, the volume group major number is 52 .
You can use the Web-based System Manager Volumes application (wsm lvm fast path) to run this command. You could also use the System Management Interface Tool (SMIT) smit lsvg fast path to run this command.
|-p|| Lists the following information for each physical volume within the group specified by the VolumeGroup parameter:
|-l|| Lists the following information for each logical volume within the group specified by the VolumeGroup parameter:
|-i||Reads volume group names from standard input.|
|-M|| Lists the following fields for each logical volume on the physical volume:
|Accesses information from the descriptor area specified by the DescriptorPhysicalVolume variable. The information may not be current, since the information accessed with the -n flag has not been validated for the logical volumes. If you do not use the -n flag, the descriptor area from the physical volume that holds the most validated information is accessed, and therefore the information displayed is current. The volume group need not be active when you use this flag.|
|-o||Lists only the active volume groups (those that are varied on). An active volume group is one that is available for use.|
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 or not the volume group is Concurrent Capable or Non-Concurrent Capable. Applies to AIX Version 4.2 or later.|
|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. Applies to AIX Version 4.2 or later.|
|VG Mode||The vary on mode of the volume group: Concurrent or Non-Concurrent. Applies to AIX Version 4.2 or later.|
|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.|
lsvg vg02The characteristics and status of both the logical and physical partitions of volume group vg02 are displayed.
lsvg -l vg02
|/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 Version 4.3 System Management Guide: Operating System and Devices explains the Logical Volume Manager, physical volumes, logical volumes, volume groups, organization, ensuring data integrity, and allocation characteristics.
Setting up and running Web-based System Management in AIX Version 4.3 System Management Guide: Operating System and Devices.
System Management Interface Tool (SMIT): Overview in AIX Version 4.3 System Management Guide: Operating System and Devices explains the structure, main menus, and tasks that are done with SMIT.
AIX HACMP/6000 Concepts and Facilities.