An administrator needs to configure vFlash Read Cache to improve performance. What would benefit the most from enabling vFlash Read Cache?

VMs using vSphere Replication are involved in asynchronous data replication for disaster recovery, a data-movement workload that does not produce the repetitive read patterns vFlash Read Cache is designed to accelerate.

Web servers predominantly perform read operations - serving HTML, CSS, JavaScript, and image files - with the same content being accessed repeatedly by many clients, yielding very high cache hit rates for host-local flash. vFlash Read Cache is a pure read cache that intercepts block-level read I/O before it traverses the storage network, so workloads with small, frequently re-read working sets like web serving gain the greatest latency reduction. The repetitive and predictable read pattern of web content delivery maps directly to the strengths of a flash-backed read cache.

Database VMs often have large working sets that exceed flash cache capacity and involve significant write I/O, making their read cache hit rates lower and less consistent than a web server workload.

Storage vMotion is a one-time migration operation that sequentially reads and writes VM storage, not a steady-state repetitive read workload that benefits from caching.