The most basic Teradata Viewpoint cluster provides high availability by including two Teradata Viewpoint servers, one active and one standby.
Both Teradata Viewpoint instances point at the same cache database on the active server. The standby cache database is kept up-to-date with the last minute of data. The DCS service runs on the active server, with a standby DCS service available on the standby server. Both servers share a distributed cache to make sure that the state between the Teradata Viewpoint portals remains consistent.