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Distributed architecture can operate in the failover mode. If the connection with one of distributed system Servers fails, then this mode enables transfering the configuration created under the Server to a Standby Server. A Standby Server temporarily becomes a Video server and records archive in accordance with the settings of the Computer object that corresponds to a Standby Server (see Selecting the disks for video archive storage section). When the connection is restored, the configuration is restored on the main Server.

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Videoimage update on Client Video Surveillance Monitors can take several seconds after configuration transfer as so as the update is performed sequentially once in 3 seconds. Video is displayed as usual after update.


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When moving configuration to the Backup Server and getting it back to the Main Server the Failover service object generates START and STOP events. These events can be used in scripts for flexible system configuration. For examples see Examples of scripts in JScript language section of Programming Guide (JScript).

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