An Unwired Server cluster provides highly available services to remote-device clients.
When you install Sybase Unwired Platform, a cluster is created automatically, and Unwired Server is added to it. Alternately, you can add the server to a different cluster, by specifying the cluster name in the installer. By default, a cluster name is the same as the name of the machine on which you install Unwired Platform. Cluster-configuration properties are saved in the clusterdb database.
To create a load-balanced system, in which synchronization requests are routed to an available server, install a relay server. Without a relay server, client requests are sent directly to the Unwired Server instance that is specified in their connection profiles.
All servers in a cluster share the same consolidated database, which stores the mobile business object data.
After you install Unwired Platform, you can add servers to a cluster, remove servers from a cluster, and unregister the relay server that services the cluster.