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5.3.12. Combining Volume Groups
To combine two volume groups into a single volume group, use the
vgmergecommand. You can merge an inactive "source" volume with an active or an inactive "destination" volume if the physical extent sizes of the volume are equal and the physical and logical volume summaries of both volume groups fit into the destination volume groups limits.
The following command merges the inactive volume group
my_vginto the active or inactive volume group
databasesgiving verbose runtime information.
vgmerge -v databases my_vg