The failover recording server is responsible for taking over the recording task if a recording server fails.
The failover recording server can operate in two modes:
The difference between the cold and hot standby modes is that in the cold standby mode, the failover recording server does not know which server to take over from, so it cannot start until a recording server fails. In the hot standby mode, the failover time is significantly shorter, as the failover recording server already knows which recording server it should take over from and can preload the configuration and start up completely - except for the last step of connecting to the cameras.
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