Websphere application server Clustering

Application server clusters: 

 

With Network Deployment, you can use application server clustering to enhance workload distribution. A cluster is a logical collection of application server processes that provides workload balancing and high availability. Application servers that belong to a cluster are members of that cluster and must all have identical application components deployed on them. Other than the applications that are configured to run on them, cluster members do not have to share any other configuration data.

Clustering is of two types:

1. Vertical Cluster
2. Horizontal Cluster

Vertical Cluster :
Application server of the Vertical Clusters can be located on single node
Horizontal Cluster
Application server's Horizontal Cluster can be located across multiple nodes or a combination of two cluster members. A cluster can span machine or LPAR boundaries and can span across operating systems with one exception.

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