Setting Up Replication Using Difference-Based Synchronization

The instructions in this section assume that the RDS has been created using the procedure described in Creating a Replicated Data Set. You can synchronize the Secondary using difference-based synchronization with checkpoint when the application is active or inactive.

  To set up replication using difference-based synchronization

1. From the RDS view (or RVG view), choose Tools > Synchronize RVG.
2. Complete the Synchronize RVG dialog box as follows:

   Options: Difference-based synchronization Full synchronization	Select Difference-based synchronization to synchronize the Secondary RVG hr_rvg on london with its Primary RVG on seattle using difference-based synchronization with checkpoint.
   Checkpoint Name	Enter a checkpoint name of your choice. For example, checkpt_presync.
   Secondary Host	From the drop-down list, select one or more Secondary hosts to be synchronized. For example, london.

3. Click OK. The status of the synchronization displays.
4. Start the application only after you have performed this step.
5. From the Secondary RVG view, choose Replication > Start.
6. In the Start Replication dialog box, select Using checkpoint and select the checkpoint name from the drop-down menu. This uses the selected checkpoint to synchronize the Secondary and start replication.
7. Click OK. A message displays the result of your request to start replication.
8. Click Close. The Secondary RVG view for hr_rvg on seattle displays the status of replication at this time. At any time, refresh the view to get the current status of replication.

   If you specified multiple Secondary hosts in step 2, repeat step 5 through step 8 to start replication for each Secondary RVG.