Performing a non-disruptive disaster recovery (DR) test involves validating the replicated data on the destination system without impacting the production source or the ongoing replication. The standard NetApp method is to create a FlexClone volume from a Snapshot copy on the destination volume. This creates an instantaneous, writable, space-efficient copy. This cloned volume can then be mounted and accessed to verify data integrity and application functionality, confirming the viability of the backup data without breaking the SnapMirror relationship or halting production workloads.

A. Revert the destination volume: This is a disruptive action that would overwrite the current state of the volume, breaking the replication and causing data loss.

C. Delete and recreate snapshots: This action does not verify the data content within the snapshots; it is a management task unrelated to data integrity validation.

D. Enable volume encryption: Encryption protects data at rest from unauthorized access but does not verify the integrity or consistency of the replicated data blocks.

1. NetApp ONTAP 9 Documentation, "Data protection overview," Section: "Disaster recovery testing using FlexClone technology." States: "You can test the usability of your disaster recovery configuration by creating a FlexClone copy of the destination volume... This enables you to perform a realistic test without disrupting the SnapMirror relationship."

2. NetApp Technical Report TR-4529, "SnapMirror Configuration and Best Practices Guide for ONTAP 9.8," Page 21, Section 4.3 "Disaster Recovery Testing." Details the process: "The best practice for testing a SnapMirror destination is to create a FlexClone volume of the destination... and then perform the test on the FlexClone volume."