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.
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.
You can install an installation image on any supported machine. You can configure the Application Server with the Administrative Console to host one or more applications.
The Network Deployment product 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 a Network Deployment product in a stand-alone configuration. This configuration is not recommended for a production environment unless you have a machine with the capacity for both products.
WebSphere Application Server Enterprise
can also run in a stand-alone configuration, or as part of a cell in a multimachine
configuration, as described in other topology topics. The following illustration
shows an example of Enterprise extensions in a stand-alone configuration.
You can also run Enterprise
extensions with Network Deployment in a stand-alone configuration. The following
illustration shows an example of such a configuration.
Enterprise installs a
version of the base WebSphere Application Server product if the base product
is not already on the machine. If the base product is on the machine, Enterprise
verifies that any required base features are installed. The Enterprise product
installs base features that are missing.
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 create more servers on a machine using the techniques described in Creating servers in coexistence or multiple instance environments.
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.
You can also install the base WebSphere Application Server product one time and use the wsinstance command to create multiple configuration instances. Configuration instances are fully functional Application Servers that share the run time and command binaries of the initial product installation. The following illustration shows an example of such a configuration.
You can also install the Enterprise
extensions on the initial installation. Any configuration instances that you
create after installing Enterprise automatically include the Enterprise extensions.