What is the primary benefit of deploying a FlexCache volume in a secondary site to improve read performance for remote users?

• A. It provides full data redundancy between both sites.
• B. It enables write-back caching to the origin for faster synchronization.
• C. It replicates data asynchronously through SnapMirror for disaster recovery.
• D. It stores frequently accessed data locally, reducing read latency for remote users.

Answer: (D)

FlexCache is designed to bring data closer to remote users by caching frequently accessed data at the secondary site. When a remote user requests data, if that data is cached on the FlexCache volume there, the read is served locally, which dramatically lowers read latency compared with fetching from the origin over the WAN. If the data isn’t already cached, FlexCache retrieves it from the origin and stores it for future requests, so subsequent reads hit the local cache. Writes still go to the origin, so the cache mainly accelerates reads rather than providing write-side optimization. This local caching behavior is what directly improves remote read performance.