Perform a partial backup of the source system
Perform a Partial Backup of the Source Data
To perform a partial back up of a source system (for example, to extract data or populate a data warehouse) while data is being replicated, you can perform the partial backup on the target system instead and copy the same data as you would on the source system.
This procedure does not interrupt user access to the source data and does not deactivate or reactivate the configuration file.
Supported databases
Oracle to all targets
Procedure
To perform a partial backup of the source data:
- On the source system, start sp_ctrl.
-
On the source system, flush the data to the target system. This command stops the Post process and places a marker in the data stream that establishes a synchronization point between source and target data.
sp_ctrl> flush datasource
where: datasource is the datasource specification of the source database in the configuration file, for example o.ora1.
- On the target system, back up the data.
Note: The data now matches the source data at the flush marker.
-
On the target system, start the Post process.
sp_ctrl> start post
Perform a full backup on the source system
Perform a Full Backup of the Source System
To back up the entire source system, including SharePlex, you must shut down SharePlex replication while the backup is performed.
This procedure stops user access to the source data but does not deactivate or reactivate the configuration file. Replication resumes when started after the backup.
Supported databases
Oracle to all targets
Procedure
Perform these steps on the source system:
- Stop all system activity.
- Start sp_ctrl.
-
Flush the data to the target system. This command stops the Post process and places a marker in the data stream that establishes a synchronization point between source and target data.
sp_ctrl> flush datasource
where: datasource is the datasource specification of the source database in the configuration file, for example o.ora1.
-
Shut down SharePlex. This command shuts down SharePlex.
sp_ctrl> shutdown
- Shut down the database.
-
Perform the backup.
- Start the database.
- Start sp_cop (Unix and Linux).
- Start sp_ctrl.
- Allow users to access the database.
-
Verify that the SharePlex Capture, Read, and Export processes started.
sp_ctrl> status
Perform these steps on the target system:
-
Start Post.
sp_ctrl> start post
-
Verify that Post started.
sp_ctrl> status
Troubleshooting Tips
Use the following resources from the Quest Support Portal to help you troubleshoot SharePlex.
See also, Prevent and Solve Replication Problems.
Appendix A: Peer-To-Peer Diagram
Appendix A: Peer-To-Peer Diagram
This diagram visually explains the concept of peer-to-peer replication. For more information, see Configure Peer-to-Peer Replication .
