HP-UX Directory Server 8.1 Administrator (766147-001, March 2014)

8 Managing Replication
Replication is the mechanism by which directory data is automatically copied from one HP-UX
Directory Server instance to another; it is an important mechanism for extending the directory
service beyond a single server configuration. This chapter describes the tasks to be performed on
the master and consumer servers to set up single-master replication, multi-master replication, and
cascading replication.
Topics include:
• “Replication overview” (page 318)
• “Replication scenarios” (page 321)
• “Creating the supplier bind DN entry” (page 325)
• “Configuring single-master replication” (page 327)
• “Configuring multi-master replication” (page 336)
• “Configuring cascading replication” (page 349)
• “Configuring replication from the command line” (page 364)
• “Making a replica updatable” (page 371)
• “Deleting the changelog” (page 372)
• “Initializing consumers” (page 372)
• “Forcing replication updates” (page 376)
• “Replicating account lockout attributes” (page 378)
• “Replication over SSL” (page 379)
• “Replicating o=NetscapeRoot for Administration Server failover” (page 380)
• “Replication with earlier releases” (page 381)
• “Using the Retro changelog plug-in” (page 382)
• “Monitoring replication status” (page 384)
• “Solving common replication conflicts” (page 386)
• “Troubleshooting replication-related problems” (page 389)
Replication overview
Replication is the mechanism by which directory data is automatically copied from one Directory
Server to another. Updates of any kind (entry additions, modifications, or even deletions) are
automatically mirrored to other Directory Servers using replication. This section contains information
on the following replication concepts:
• “What directory units are replicated” (page 319)
• “Read-write and read-only replicas” (page 319)
• “Suppliers and consumers” (page 319)
• “Changelog” (page 319)
• “Replication identity” (page 319)
• “Replication agreement” (page 320)
• “Compatibility with earlier versions of directory server” (page 320)
318 Managing Replication