Peer-to-peer replication

Tivoli® Directory Server can be made highly available by using peer-to-peer replication to keep data synchronized between two or more servers.

Replication is a technique that is used by directory servers to improve performance, availability, and reliability. You can set up two peer servers with read and write access. Each peer server replicates changes in data to the other peer server at scheduled intervals.

The following diagram provides an overview of Tivoli Directory Server using peer-to-peer replication to share data across peer servers.

The diagram is explained in the main body of the text.

The client access is handled by a service internet protocol (IP) address, which is assigned directly to the primary peer server. All client requests go to the Tivoli Directory Server that is running on the primary peer server. If the primary server breaks down, cluster management software assigns the service IP to a replacement peer node on the standby server and operations are restored. You can introduce a cluster manager, such as IBM® Tivoli System Automation for Multiplatforms, for this purpose.



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