Initiating continuous data synchronization

There are multiple ways to Start of change initiate continuous data synchronization within End of change Migrate While Active.

These are shown in Figure 1.

Successfully complete the system migration stage using the Finalize action.
From within the data synchronization stage, continuous data synchronization processing can be paused using the Pause action. When paused, there is no synchronization of changed objects to the copy node but changes to objects continue to be tracked.

To initiate a pause in continuous data synchronization, click on the Pause button within the Db2® Mirror GUI, as seen in Figure 2. A pause in synchronization can also be initiated by calling the CHANGE_MIGRATION_MANAGER procedure, using the Pause action.
Figure 2. Pause continuous data synchronization

To resume continuous data synchronization, click on the Start button within the Db2 Mirror GUI, as seen in Figure 3. A resumption of continuous data synchronization can also be initiated by calling the CHANGE_MIGRATION_MANAGER procedure, using the Synchronize action.
Figure 3. Restart after pause
When a Migrate While Active user is ready to finalize the migration to the copy node, a final sweep of the tracking lists is performed and any remaining changed objects are synchronized.

To understand how to proceed with final data synchronization, see this section: Final synchronization phase

If the Migrate While Active user decides not to complete the Finalize action, Migrate While Active will return to continuous data synchronization.

The transitions through the various migration stages are made possible by the Migration Manager.