exportvg

exportvg Command 



Purpose

Exports the definition of a volume group from a set of physical volumes.

Syntax

exportvg VolumeGroup

Description

The exportvg command removes the definition of the volume group specified
by the VolumeGroup parameter from the system. Since all system knowledge
of the volume group and its contents are removed, an exported volume
group can no longer be accessed. The exportvg command does not modify
any user data in the volume group.

A volume group is a nonshared resource within the system; it should
not be accessed by another processor until it has been explicitly
exported from its current processor and imported on another. The primary
use of the exportvg command, coupled with the importvg command, is
to allow portable volumes to be exchanged between processors. Only
a complete volume group can be exported, not individual physical volumes.

Using the exportvg command and the importvg command, you can also
switch ownership of data on physical volumes shared between two processors.

Note:	To use this command,  either have root user authority
or be a member of the system group.

You can use the System Management Interface Tool (SMIT) to run this
command. To use SMIT, enter:

smit exportvg

Note:	A volume group that has a paging space volume on it cannot be
exported while the paging space is active. Before exporting a volume
group with an active paging space volume, ensure that the paging space
is not activated automatically at system initialization, and then
reboot the system.

Examples

To remove volume group vg02 from the system, enter:

exportvg vg02

Note:	The volume group must be varied off before exporting.

The definition of vg02 is removed from the system and the volume group
cannot be accessed.

Files

/usr/sbin	Directory where the exportvg command resides.

Related Information

The  importvg command, varyoffvg command, varyonvg command.

The Logical Volume Storage Overview in AIX Version 4 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.

The System Management Interface Tool (SMIT): Overview in AIX Version
4 System Management Guide: Operating System and Devices explains the
structure, main menus, and tasks that are done with SMIT.