This graphic shows the disaster recovery site taking over the duties. You create a new active standby pair on the disaster recovery site. The Oracle database on the disaster recovery site is now the primary Oracle database and it accepts application updates. Through Active Data Guard, the updates to the primary Oracle database are propagated to the standby Oracle database on the primary site. Also, you create a new ADG enabled read-only subscriber on the primary site that accepts the replicated updates from the standby master.