A banking customer is confused about RAID protection. Which of the following are characteristic of RAID-6？（）

• A、Double drive failure in an array and extremely high data fault tolerance
• B、Double drive failure in an array and more total storage capacity than RAID-5
• C、Extremely high data fault tolerance and higher performance than RAID-5
• D、Higher performance than RAID-5 and more total storage capacity than RAID-5