About Rack-Mounted Directory Server Configurations

In a rack-mounted directory server configuration, multiple directory server instances run on different hardware nodes but connect to the same directory store, which is an Oracle9i Database Server.

The key benefits of the rack-mounted configuration are:

• Scalability and Performance

  Load balancing is achieved by redirecting LDAP clients to multiple directory nodes. Each additional hardware node added to the directory node increases both the number of concurrent clients that can be supported and the throughput of LDAP operations.

• High Availability of Directory Servers

  High availability of directory servers can be achieved through a network re-director that changes the direction of the LDAP request on the failed directory server node to the other ones that are still running.

• Reduced cost of ownership

  A rack-mounted directory server configuration requires only low-cost hardware to achieve all the benefits of high performance, high availability, and scalability.