The simplest form of Geo SCADA Expert system is a Lone Server architecture. This involves a single server that runs independently, stores the database and communicates with the clients and hardware (outstations, PLCs and so on).
As Lone Server architectures have only one server, there is no redundancy. If there is an unexpected problem with the server or it loses its connections to the clients or hardware, the Geo SCADA Expert system will go offline.