An important feature of disk groups is that they can be moved between systems. If all disks in a disk group are moved from one system to another, then the disk group can be used by the second system. You do not have to re-specify the configuration.
To move a disk group between systems
This can require a reboot, in which case the vxconfigd
daemon is restarted and recognizes the new disks. If you do not reboot, use the command vxdctl
enable
to restart the vxconfigd
program so VxVM also recognizes the disks.
You can also move disks from a system that has crashed. In this case, you cannot deport the disk group from the first system. When a disk group is created or imported on a system, that system writes a lock on all disks in the disk group.