Sun Java Enterprise System 2005Q4 Technical Overview

Availability Components

Availability components provide near-continuous uptime for system service components and custom application services. The availability components included in Java Enterprise System and the services that they provide are shown in the following table. For more details on any component, see Availability Component Descriptions.

Table 1–2 Java ES Availability Components


Availability Services Provided 

Sun Cluster

Provides high availability and scalability services for Java Enterprise System, the applications that run on top of the Java Enterprise System infrastructure, and the hardware environment in which both are deployed. 

High Availability Session Store

Provides a data store that makes application data, especially session state data, available even in the case of failure.