For IBM® WebSphere® DataPower® XC10 Appliance to work with WebSphere Application Server or clients in a stand-alone environment, you must install the WebSphere eXtreme Scale Client or package the client Java™ archive (JAR) files with your application.
If your applications use WebSphere Application Server dynamic cache or HTTP sessions, then you must install the WebSphere eXtreme Scale Client into the WebSphere Application Server environment.
Simple data grids can be used in an embedded WebSphere Application Server environment or in a stand-alone environment. When you install the client in a stand-alone environment, the installation does not use WebSphere Application Server.
For more information about the types of data grids, see Appliance topology: collectives, zones, and data grids.