What method is used to distribute changes in an asynchronous consistency group?

The method used to distribute changes in an asynchronous consistency group is Delta Sets. In the context of data replication, particularly with VPLEX, Delta Sets are crucial for efficiently tracking and managing changes made to data since the last synchronization.

When a change occurs in the data, it is captured as a delta, which is essentially a snapshot of the data that highlights the differences from the previous version. This method is efficient because instead of transferring the entire dataset again, only the incremental changes – those identified as delta – are sent over to the target site. This reduces bandwidth usage and improves the speed of the replication process.

Using Delta Sets allows for effective synchronization of data between sites in an asynchronous manner, ensuring that the target site can be updated with the most recent changes without the overhead of retransmitting unmodified data. This process is particularly important in scenarios where there are large volumes of data and the need for real-time updates with minimal interruption to performance.