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Server Clusters

To help prevent service interruptions, SiteMinder includes a failover feature. If the primary Policy Server fails and failover is enabled, a backup Policy Server takes over policy operations. Beginning with SiteMinder v6.0, failover can occur not only between Policy Servers, but between groups, or clusters, of Policy Servers.

The cluster functionality also improves server performance by providing dynamic load balancing between the servers in a cluster. With dynamic load balancing, policy operations are automatically distributed between the available servers in a cluster according to the performance capabilities of each server.