Upgrade from a shared installation to a private installation.
In Adaptive Server Cluster Edition version 15.5 and later, you can configure your cluster as a "shared" or "private" installation. See An Overview of the Cluster Edition in the Clusters Users Guide.
You must manually upgrade a symmetric multiprocessing (SMP) version of Adaptive Server to a private installation of the Cluster Edition. First, upgrade your Adaptive Server to a Cluster Edition shared installation, then switch to a private installation using the steps below. Since private installations were introduced in version 15.0.3, cluster instances created with earlier versions of Adaptive Server Cluster Edition automatically continue as a shared installation.
You have now upgraded your shared installation to a private installation.
To add new nodes to this cluster, you can now use either Sybase Control Center or the sybcluster tool to do so. See Clusters Users Guide and Sybase Control Center for Adaptive Server.