Consider these basic installation scenarios to determine how to install WebSphere Application Server V6.1 Feature Pack for EJB 3.0 onto your existing single-tiered or multiple-tiered application server environment.
The Feature Pack for EJB 3.0 implements the Enterprise JavaBeans (EJB) Version 3.0 and Java Persistence API (JPA) specifications.
To use the functionality provided in the Feature Pack for EJB 3.0, you must perform two actions: First, you must install the feature pack onto an existing WebSphere Application Server Version 6.1 installation. Second, either augment an existing deployment manager or application server profile with the feature pack or create a new profile already enabled with the feature pack functionality. The only profile types that can be created with the feature pack enabled are the deployment manager and application server. Likewise, the only profile types that can be augmented with the feature pack are the deployment manager and unfederated application server. See Augmenting a profile using the graphical user interface or Augmenting profiles using the command prompt for more information.
Some scenarios are more typical in production environments. For example, although Scenario 1 is a fully functional environment, it supports a lighter workload than Scenario 2. A cluster might consist of application servers and nodes and is responsible for balancing workload among servers. A cell consists of one deployment manager and one or more federated application servers that are managed nodes. See "Planning to install Network Deployment" in the Network Deployment documentation for more information on application server topologies.
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