Dell EMC Specialist – Implementation Engineer, PowerEdge Server — Question 28

At a disaster planning meeting, an architect is presented with the following facts by a client:
A Unix host is replicating storage from a Production PowerMax to a VMAX 250FX.
RDF pairs have been split with Production and DR hosts accessing their respective storage.
Invalid tracks have started to build against PowerMax and VMAX 250FX.
The client now wants to bring production back to PowerMax, discarding the VMAX 250FX updates while keeping the updates on the PowerMax. What is the correct action to take?

Answer options

• A. Failback
• B. Establish
• C. Resume
• D. Failover

Correct answer: A

Explanation

The correct action is to perform a Failback, which allows the production environment to return to the original PowerMax while discarding any changes made to the VMAX 250FX. The other options, such as Establish, Resume, and Failover, do not align with the need to revert to the original storage while ignoring updates from the secondary site.