Clusters are sets of managed servers that provide high availability
and workload balancing for applications. Members of a cluster can be servers
located on different host machines or servers located on the same host machine
(the same node).
Clusters give your applications more capacity and availability than a single
server. A clustered environment provides the following benefits:
- Workload balancing: By running application images on multiple servers,
a cluster balances an application workload across the servers in the cluster.
- Processing power for the application: You can add processing power to
your application by configuring additional server hardware as cluster members
supporting the application.
- Application availability: When a server fails, the application continues
to process work on the other servers in the cluster thereby allowing recovery
efforts to proceed without affecting the application users.
- Maintainability: You can stop a server for planned maintenance without
stopping application processing.
- Flexibility: You can add or remove capacity as needed by using the administrative
console.
For more information about clusters, see Introduction: Clusters in the WebSphere Application Server Network Deployment documentation.
For more information about establishing a clustered
environment in IBM® WebSphere® Process
Server, see Creating a clustered environment.
Last updated: Thu 26 Oct 2006 10:30:05
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