A mutually-aware OpenSwitch implementation requires that you install:
Two mutually aware, companion OpenSwitch servers, preferably on a different host than the Adaptive Servers. Both mutually aware OpenSwitch servers within the same cluster regard each other as companions and are both aware of each other’s state and the state of the other servers.
You can also use two coordination modules or two replication coordination
modules, but these OpenSwitch CM applications are optional. See
the OpenSwitch Coordination Module Reference Guide.
Two Adaptive Servers, which may be configured for high-availability.