A new server has ten 250GB drives ordered with it. An administrator needs to create two arrays, one for the operating system and the other for the storage array. The operating system array needs to be able to hold 25GB of data, fault tolerant, and have the least amount of unused drive space. The storage array must be able to hold at least 600GB of data, be fault tolerant, and have decent performance. The storage array should contain room for the data to double over the upcoming year. There will be available spare parts on hand to support this server in the event of a failure.

Which of the following RAID configurations would BEST suit the needs for this server?

A.
OS: RAID 1 with two 250GB hard drives
Storage: RAID 5 with eight 250GB drives

B.
OS: RAID 1 with two 250GB hard drives
Storage: RAID 10 with four 250GB hard drives

C.
OS: RAID 5 with three 250GB hard drives
Storage: RAID 5 with seven 250GB hard drives

D.
OS: no RAID with one 250GB hard drive
Storage: RAID 6 with nine 250GB hard drivesb