Which step should occur before initializing a SnapMirror transfer?

• A. Create a snapshot on the source.
• B. Configure the destination.
• C. Initialize transfer.
• D. Monitor status.

Answer: (A)

A baseline snapshot on the source provides a consistent seed for the initial transfer. When you set up SnapMirror, the first transfer is typically an initial seed that establishes the starting point for replication. Taking a snapshot on the source captures a point-in-time, non-changing view of the data, ensuring the destination is seeded with a coherent copy. Without this snapshot, the initial transfer could lack a stable baseline and risk data inconsistency as writes continue on the source.

After the seed is established, you can proceed with initializing the transfer, then monitor status and perform ongoing updates. Configuring the destination is normally part of setting up the relationship, but the key prerequisite for a clean initial seed is having that source snapshot.