This is applicable only if you are setting up disaster recovery in a non-shared storage environment.
You cannot use the DR wizard to configure Volume Replicator replication if the service group contains VCS resources configured for non-shared storage (VMNSDg agent resources). You must configure replication using the Setup Replicated Data Set Wizard.
Configuring Volume Replicator involves setting up the replicated data sets (RDS) on the hosts for the primary and secondary sites. The Setup Replicated Data Set Wizard enables you to configure Replicated Data Sets for both sites.