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Sun Java(TM) System Directory Server Online Help

> # Enabling Replication Dialog

> The replication wizard helps you to enable replication on a suffix or promote or demote the role of an enabled suffix. The first step is to choose the new role of your suffix:

> - Consumer Replica. Data below this suffix cannot be modified by LDAP clients. Data changes are not logged and cannot be replicated to other servers.

> A consumer replica is a dedicated read-only copy of the suffix. It receives all updates to the suffix contents through replication. It automatically refers any write operations back to a master replica.

> - Master Replica. Data below this suffix can be modified by LDAP clients. Data changes are logged and may be replicated to other servers.

> A master replica is the "owner" of the suffix contents: it centralizes all write operations and distributes them to consumer replicas of the suffix. In multi-master replication (MMR), several masters allow modifications to the same suffix and they use timestamps to determine the latest updates.

> - Hub Replica. Data below this suffix cannot be modified by LDAP clients. Data changes are logged and may be replicated to other servers.

> A hub replica receives updates from masters (or another hub) and sends them to any number of consumers (or another hub). The hub replica is read-only, and like a consumer, it automatically refers any write operations back to a master replica.

> Click Next to proceed with the next required step.

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> Copyright 2004 Sun Microsystems, Inc. All rights reserved.