Customers need to create a new OLAP database backup, used for the evening bulk import online database data, the database software is SQLServer 2008, in which the data file capacity is 20TB, storage arrays is OceanStor V3, requires stable write bandwidth of 1800MB/s, could you tell me which of the following configuration best meet customer requirements?

Customers need to create a new OLAP database backup, used for the evening bulk import online database data, the database software is SQLServer 2008, in which the data file capacity is 20TB, storage arrays is OceanStor V3, requires stable write bandwidth of 1800MB/s, could you tell me which of the following configuration best meet customer requirements?
A . using 2TB NL SAS hard disk, configure 8D + 2P RAID6
B . using 2TB NL SAS hard disk, configure 8D + 1P RAID5
C . using 600GB 15K rpm SAS hard disk, configure 8D + 1P RAID5
D . using 600GB 15K rpm SAS hard disk, configure RAID10

Answer: A