Data is replicated from a Primary host, where the application is running, to one or more Secondary hosts. An RVG on the Primary host, and the corresponding RVGs on the Secondary hosts, make up a Replicated Data Set (RDS).

Most Volume Replicator commands operate on an RDS, that is, the Primary RVG and all the Secondaries in the RDS. You can perform Volume Replicator operations from any host in an RDS, unless otherwise noted. Volume Replicator performs the appropriate task on the required hosts in the RDS.