High availability for directory servers

Different Tivoli® Directory Server configurations provide different failover and system protection capabilities. Choose the directory server configuration that suits the needs of your organization.

You can use System Automation for Multiplatforms to configure clusters of directory servers and proxy servers. By implementing clusters, you can ensure high availability by providing additional server nodes for failover.

The following table summarizes the attributes of various directory server configurations. Failover time is based on the optimum cluster configuration and varies with the products that are used.

Tivoli Directory Server configuration Availability type Failover time Protection level Additional cost
Tivoli Directory Server with peer-to-peer replication Hot standby Less than 30 seconds Protection from software failure, storage failure, server failure, and site failure System Automation for Multiplatforms license
Tivoli Directory Server with peer-to-peer replication and proxy Active-active Instant failover for directory node failure; less than 30 seconds for proxy failure Provides load balancing and protection from software failure, storage failure, server failure, and site failure System Automation for Multiplatforms and Tivoli Directory Server licenses


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