A server stores critical data on two disks and maintains identical copies of the data on both disks. If either disk fails, the other can continue providing the stored data. Which RAID level describes this arrangement?

Options

  • A. RAID 0
  • B. RAID 1
  • C. RAID 5
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. RAID 1

Detailed Explanation

Correct Answer: RAID 1.

Explanation: RAID 1 uses disk mirroring, maintaining identical copies of data on multiple disks. It provides redundancy against the failure of one disk in a two-disk mirror. RAID 0 uses striping without redundancy, while RAID 5 uses striping with distributed parity and generally requires at least three disks.
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