Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Figure 4-6

Disk group join operation

Source disk group

Join

After join

Target disk group

These operations are performed on VxVM objects such as disks or top-level

volumes, and include all component objects such as sub-volumes, plexes and

subdisks. The objects to be moved must be self-contained, meaning that the disks

that are moved must not contain any other objects that are not intended for the

move.

If you specify one or more disks to be moved, all VxVM objects on the disks are

moved. You can use the -o expand option to ensure that vxdg moves all disks on

which the specified objects are configured. Take care when doing this as the result

may not always be what you expect. You can use the listmove operation with

vxdg to help you establish what is the self-contained set of objects that corresponds

to a specified set of objects.

Warning: Before moving volumes between disk groups, stop all applications that

are accessing the volumes, and unmount all file systems that are configured on

these volumes.

If the system crashes or a hardware subsystem fails, VxVM attempts to complete

or reverse an incomplete disk group reconfiguration when the system is restarted

or the hardware subsystem is repaired, depending on how far the reconfiguration

had progressed. If one of the disk groups is no longer available because it has been

Creating and administering disk groups

Reorganizing the contents of disk groups

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