FlexCache is?

• A. A replication method for cross-site disaster recovery.
• B. A performance monitor.
• C. NAS caching feature to accelerate data access by caching hot data closer to clients on a dedicated node.
• D. A data deduplication feature for backups.

Answer: (C)

FlexCache is a NAS caching feature that accelerates data access by caching hot data closer to clients on a dedicated cache node. By keeping frequently accessed data on the cache node, client requests are served locally when possible, reducing latency and easing load on the primary storage and network—especially for remote or multi-site NAS workloads. It supports NAS protocols (like NFS/SMB) and keeps data consistent with the origin storage. This makes it a performance-enhancing cache mechanism, not a replication method, a monitoring tool, or a deduplication feature.