Before configuring clusters for global clustering, make sure both clusters have product and database software installed and configured.
Verify that you have the correct installation options enabled, whether you are using keyless licensing or installing keys manually. You must have the GCO option for a global cluster and VVR enabled.
See About Veritas product licensing.
After setting up two clusters running SFCFS, you can configure a global cluster environment with VVR. You must modify both cluster configurations to support replication in the global cluster environment.