The goal of the cluster is to maintain near 100 percent uptime while ensuring data integrity. More than one highly available application can be run on a cluster at a time, either sharing resources with other applications, or running on separate nodes with their own resources. The Sun Cluster environment is not only a way of tightly coupling multiple machines and resources, but also a mechanism by which these hardware and software components can be managed. Various types of cluster configurations are possible, and choosing the right configuration for the site requires knowing a bit about Sun Cluster itself as well as the applications. This paper explains how to set up a Sun Cluster 3.1 09/04 environment for highly available services.
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