From OpenSCADAWiki
Redundancy configuration start from the redundant stations appending to the list of OpenSCADA stations in the tab "Subsystem" of the subsystem "Transports" (Fig.13). And to add here you need not only the redundant stations to the current one but the same current one with its external IP, that is some loop. Further this configurations will have been stored in the generic DB of the redundant system, and from this time the DBs will be used in all redundant station creation. Then there is important to make on that stage all need changes in the generic DB and about this project in general!