WebSphere system HA level 1

For WebSphere system HA level 1, as shown in Figure 8-3, WebSphere, the HTTP server, and the database are installed in a single box host. If a host machine dies or crashes, all WebSphere services will be unavailable. A failure of any component such as a network card, network cable, HTTP server, appserver, administrative servers (Node Agent and Deployment Manager), JMS server, or database server will cause the WebSphere service to become unavailable. This level is usually used by developers and lowest-end customers.

Figure 8-3 WebSphere system HA level 1

With a more powerful machine, you can create a server cluster (with multiple cluster members) that can minimize failures in the appserver process.

Single points of failure include the host, firewall, HTTP server, appserver (if not clustered), administrative servers (Node Agent and Deployment Manager), JMS server, database server and data, and network.

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WebSphere is a trademark of the IBM Corporation in the United States, other countries, or both.

 

IBM is a trademark of the IBM Corporation in the United States, other countries, or both.