The following illustrations show examples of single server topologies. Each WebSphere Application Server product can run in a single server environment. The most common topology is a stand-alone base WebSphere Application Server product.
IBM WebSphere Application Server for z/OS integrates the WebSphere Application Server product and the Network Deployment product into a single package. In a case such as this, the term product really equates to function.
The WebSphere Application Server base product runs on a single machine. You can install the product in a stand-alone configuration or as part of a cell in a multimachine configuration. The stand-alone configuration is typically for developer desktops or stand-alone production computing, which involve a single Application Server instance operating independently of any other applications.
The Network Deployment function can also run on a stand-alone machine or in a multimachine configuration, as described in other topology topics. The following illustration shows a typical developer environment for Network Deployment function in a stand-alone configuration.
Multiple instances on one machine
The base WebSphere Application Server product contains three main topologies:
You can install the base WebSphere Application Server product one time as described previously, which creates a default server1 instance.
You can install the base WebSphere Application Server product multiple times in separate directories. Each resulting installation instance is a fully functional Application Server. The following illustration shows an example of such a configuration.