WebSphere Application Server High Availability

WebSphere Commerce utilizes the underlying WebSphere Application Server failover and recovery features to achieve High Availability at the application server level.

This is done through the workload management (WLM) mechanism that is provided by IBM WebSphere Application Server Network Deployment. If you do not use WLM with your application servers (and you do not use any other clustering software), your system cannot provide failover support. In this case, your Web or Java clients will fail if your application server fails.

This chapter gives an introduction to the WLM and failover capabilities of IBM WebSphere Application Server Network Deployment. For more details on this topic, refer to WebSphere Application Server V6 Scalability and Performance Handbook, SG24-6392.

Topics discussed in this chapter include:

• Introduction to availability

• Session management using WebSphere Commerce and WebSphere Application Server

• WebSphere workload management defined

• WebSphere Application Server clustering

• WebSphere Commerce clustering

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