How are FlexCache volumes populated?

• A. They are sparsely populated as data is accessed.
• B. They mirror the entire origin immediately.
• C. They are pre-warmed with all data.
• D. They only cache metadata.

Answer: (A)

FlexCache volumes are designed to bring in data only as it’s needed. When a client requests data that isn’t yet in the cache, the system fetches those blocks from the origin and stores them locally, serving the request in the process. Over time, frequently accessed data stays in the cache while untouched data remains absent, so the cache fills up sparsely rather than mirroring the entire origin upfront. This on-demand population reduces initial bandwidth and storage usage and makes repeated accesses faster. While metadata can be cached as needed, the primary behavior is loading data blocks as they are accessed, not pre-warming or caching everything at once.