Release 10.1A: Progress Fathom Replication
User Guide

Automated transition functions

All transition operations can now perform automated processing. Some of the automated processing is controlled by the new transition properties in the replication property files. Other automated processing is based on the state of the database that is being transitioned.

The following automated functions are part of the transition operation:

Shutdown of the transitioned database.
Restart of the transitioned database.
Addition of AI areas.
Starting of AI.
Notification of the peer to implicitly perform transition.

Table 4–1 describes the action taken by the dsrutil db-name -C transition command when it is executed for databases in varying states.

Table 4–1: Transition command actions

Database type	Database state	Online or offline	Description of transition performed
Source	Database is newly enabled.	Offline	An error occurs because the database is newly enabled.
Source	Database is newly enabled.	Online	An error occurs because the database is online and has never been replicated.
Source	Database has been replicated.	Offline	The database is transitioned as instructed in the repl.properties file.
Source	Database has been replicated.	Online	In order to transition a source database in this state, the replication server must be communicating with the replication agent to communicate a transition and failover request to the replication agent.
Target	Database has been replicated.	Offline	In order to transition a target database in this state, the database cannot be newly transitioned.
Target	Database has been replicated.	Online	In order to transition a target database in this state, the following conditions must be met: The replication agent cannot be communicating with the replication server. The replication agent must be in pre-transition. All source AI extents must be applied to the target database by using dsrutil db-name -C applyExtent. You must explicitly perform this step, possibly multiple times depending on the number of source AI extents.
Normal	–	Online Offline	An error occurs because the database is not enabled for replication.