It is possible to configure two Reports Servers in a project. That is, a primary Reports Server and a standby Reports Server.
When both Reports Servers are in operation, the scheduled reports only run on the primary Reports Server. If the primary Reports Server becomes inoperative, the scheduled reports run on the standby Reports Server (you can also configure the standby Reports Server so that is also runs the scheduled reports in parallel with the primary Reports Server). Please be aware that no report data is transferred between the primary and standby Reports Servers (CitectSCADA does not synchronize the report data because reports can write their data to any type of device.