A system administrator needs to maintain 2TB of storage for a database server. There are six 250GB drives available in the server for storage space. Which of the following RAID configurations would be the BEST choice given that performance and fault tolerance are important factors?（）
A. RAID 1 across drive pairs totaling 3 pairs
B. RAID 5 across all 6 drives
C. RAID 10 across all 6 drives
D. RAID 0 across all 6 drives
参考答案：B
