RAID20 Has the Natural Advantage of Supporting a Smart Tier

question 211

Multiple Choice

RAID2.0 has the natural advantage of supporting a smart tier, to accelerate the performance of hot data. Which of the following descriptions about the smart tier performance is correct?

• A) When smart LUNs act as backup media, smart tier's performance improvement on this LUN is not obvious.
• B) During the running of the business, the extent size can be adjusted by the size of the hotspot area to obtain better performance.
• C) Literacy ratio in the 1:9 scenario, enabling the smart tier has greatly improved the performance of the business.
• D) Smart tier has no effect on host performance during hot data migration.