Which statement about SmartTier dynamic storage tiering is true?

• A. Data statistics, analysis, and relocation activities of the SmartTier affect service continuity and data availability.
• B. The SmartTier calculates and analyzes the activity level of data.
• C. The SmartTier relocation activities are based on configured policies.
• D. The SmartTier automatically and dynamically matches data from different activity levels with storage media of different characteristics.

Answer: (D)

SmartTier dynamic storage tiering optimizes where data lives by automatically placing data on storage media that matches how it’s used. It continuously analyzes data access patterns, classifies data into tiers (hot, warm, cold), and automatically relocates data between media with different performance and capacity characteristics as those patterns change. The essence is the automatic, dynamic matching of data to storage media based on activity levels, so hot data stays on faster media and colder data moves to cheaper, larger media. This automatic behavior is what sets it apart from merely calculating activity or relying only on configured policies; those elements exist, but they don’t capture the ongoing, hands-off relocation across tiers that SmartTier performs to optimize both performance and cost.