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 a 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 ensure that the state between the Teradata Viewpoint portals remains consistent.