Server redundancy

Symphony supports server redundancy in server farms. If a Symphony Server stops responding, the camera and device processing moves to another Symphony Server.

A primary servers actively performs camera and device processing. When failover occurs, the primary server becomes a redundant server.

A redundant server does perform camera and device processing. There must be at least one redundant server available in the server farm at all times. When failover occurs, the redundant server becomes the primary server.

In addition, one server in the server farm is the master server. The master server performs the additional task of managing failover actions. If the master server is unavailable, Symphony designates another server as the master server.

Server redundancy works within redundancy groups.