# Fault Tolerance

You can configure EMS servers as primary and secondary servers to provide fault tolerance for your environment. The primary and secondary servers act as a pair, one of them starting out in the active state and the other in the standby state. The active server accepts client connections and performs the work of handling messages, while the standby server acts as a backup in case of failure. If the active server fails, the standby server assumes operation and becomes the active server.

See Fault Tolerance for more information about the fault-tolerance features of EMS.

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