Which NetApp Storage Tier component works aggregate-wide on a FAS controller?

Which NetApp Storage Tier component works aggregate-wide on a FAS controller?

• A. Flash Pool
• B. Flash Disk
• C. Flash Cache
• D. Flash IO

Answer: (A)

In NetApp, the idea being tested is how a fast storage tier can be shared across an entire aggregate. The Flash Pool is exactly that: it creates a pool of SSDs that acts as a high-speed tier for the whole aggregate on a FAS controller. Because the pool is tied to the aggregate, every volume within that aggregate can leverage the fast flash tier, speeding both reads and writes by caching hot data and metadata close to where the data ultimately resides. Flash Cache, by contrast, is a controller-level caching layer that speeds IO but isn’t an aggregate-wide storage tier within the disk layout; it’s not tied to the aggregate’s disk configuration in the same way. The other options aren’t recognized NetApp storage tier components.

In NetApp, the idea being tested is how a fast storage tier can be shared across an entire aggregate. The Flash Pool is exactly that: it creates a pool of SSDs that acts as a high-speed tier for the whole aggregate on a FAS controller. Because the pool is tied to the aggregate, every volume within that aggregate can leverage the fast flash tier, speeding both reads and writes by caching hot data and metadata close to where the data ultimately resides.

Flash Cache, by contrast, is a controller-level caching layer that speeds IO but isn’t an aggregate-wide storage tier within the disk layout; it’s not tied to the aggregate’s disk configuration in the same way. The other options aren’t recognized NetApp storage tier components.