Follow these cluster naming conventions.
During installation of Sybase Unwired Platform (SUP), if Unwired Server is to be installed as a node in a cluster, you are given the option to change the default name of the cluster (assuming this is the first node of the cluster). The default name is the computer name on which you are installing.
If the cluster is to be part of a hosted Relay Server, use only alphanumeric names, since Relay Server does not allow underbars, spaces, hyphens, and so on.
Each Unwired Server that joins the cluster assumes the name of the cluster incrementally. For example, the first server is named SybaseUnwiredPlatformMYHOSTServer1, the second SybaseUnwiredPlatformMYHOSTServer2, and so on.