HP-UX Directory Server Administrator Guide HP-UX Directory Server Version 8.1 (5900-3098, May 2013)

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 317)
• “Replication scenarios” (page 320)
• “Creating the supplier bind DN entry” (page 324)
• “Configuring single-master replication” (page 326)
• “Configuring multi-master replication” (page 335)
• “Configuring cascading replication” (page 348)
• “Configuring replication from the command line” (page 363)
• “Making a replica updatable” (page 370)
• “Deleting the changelog” (page 371)
• “Initializing consumers” (page 371)
• “Forcing replication updates” (page 375)
• “Replicating account lockout attributes” (page 377)
• “Replication over SSL” (page 378)
• “Replicating o=NetscapeRoot for Administration Server failover” (page 379)
• “Replication with earlier releases” (page 380)
• “Using the Retro changelog plug-in” (page 381)
• “Monitoring replication status” (page 383)
• “Solving common replication conflicts” (page 385)
• “Troubleshooting replication-related problems” (page 388)
8.1 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 318)
• “Read-write and read-only replicas” (page 318)
• “Suppliers and consumers” (page 318)
• “Changelog” (page 318)
• “Replication identity” (page 318)
• “Replication agreement” (page 319)
• “Compatibility with earlier versions of directory server” (page 319)
8.1 Replication overview 317