A method for synchronizing a Secondary with the Primary without stopping the application. A command marks the start of the checkpoint. All Primary data volumes are backed-up and then the end of the checkpoint is marked. The data is restored on the Secondary and the Primary can then begin from the start of the checkpoint. The Secondary becomes consistent when the end of the checkpoint is reached.
Used for taking Primary backup and restoring on Secondary while Primary is being used. The Secondary is not connected at this time therefore the Replicator Log maintains all the pending updates.