A manufacturing company wants to build an AI Center of Excellence in their headquarters using data from their remote factories. All data is currently…

NetApp FlexCache is the correct technology for this scenario. It is designed to create sparse, writable, cached copies of volumes from a remote ONTAP cluster (the origin) onto a local ONTAP cluster. In this case, the AI Center of Excellence at the headquarters can host FlexCache volumes that cache data from the ONTAP systems at the remote factories. This allows AI applications to access a subset of the factory data with low latency, as frequently accessed data is served from the local cache. The cache can be prepopulated (warmed) to ensure data is available locally before it is first requested, optimizing performance.

A. Flash Cache: This is a real-time, intelligent read cache on a storage controller that accelerates performance for workloads on that specific system; it does not facilitate data access between remote sites.

B. SnapVault: This is a disk-to-disk backup and archival technology used for long-term data retention and disaster recovery, not for providing a live performance cache for active applications.

D. Flash Pool: This is a hybrid storage technology that combines SSDs and HDDs within a single aggregate to create a performance tier; it is a local-only feature and does not cache data from remote locations.

1. NetApp TR-4743: FlexCache in ONTAP.

Section: "FlexCache Technology Overview," Page 5.

Quote/Content: "NetApp ONTAP FlexCache technology enables you to cache data from a volume on one cluster (the origin) to a volume on another cluster... When a client requests data that is not in the cache, the data is fetched from the origin and is stored in the cache volume before being served to the client. Subsequent requests for the same data are served directly from the cache." This directly supports the use case of a central site caching data from remote sites.

2. NetApp ONTAP 9 Documentation: Data protection using SnapMirror technology.

Section: "Comparison of SnapVault and SnapMirror unified replication."

Content: This section clarifies that SnapVault is a backup relationship intended for long-term retention of point-in-time copies, distinguishing it from a performance-caching solution like FlexCache.

3. NetApp ONTAP 9 Documentation: Flash Pool aggregates.

Section: "How Flash Pool aggregates work."

Content: Describes Flash Pool as a feature that "adds a solid-state drive (SSD) cache to a hard disk drive (HDD) aggregate," confirming it is a local performance enhancement for a single aggregate.

4. NetApp ONTAP 9 Documentation: Concepts of storage caching.

Section: "How Flash Cache modules improve performance."

Content: Explains that "Flash Cache (and the newer Virtual Storage Tier) is a tier of high-performance flash storage created on a storage node," confirming it is a node-local cache.