Use the mkrcconsistgrp command to create a new, empty remote copy consistency group. If the -cluster parameter is not specified, the consistency group is created on the local system only.
This command creates a new consistency group. The ID of the new group is displayed after the command processes. The name must be unique across all consistency groups that are known to the systems within this consistency group. If the consistency group involves two system, the systems must be in communication throughout the create process.
The new consistency group does not contain any relationships and is in an empty state. You can add Metro Mirror, Global Mirror, or active-active relationships to the group by using the chrcrelationship command.
mkrcconsistgrp -name rc_testgrp
The resulting output:
RC Consistency Group, id [255], successfully created