Multiple choice

In which RAID level is block-level striping with distributed parity implemented?

  1. RAID 0

  2. RAID 1

  3. RAID 2

  4. RAID 5

  5. RAID 10
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

RAID 5 (block-level striping with distributed parity) distributes parity along with the data and requires that all drives but one be present to operate. The array is not destroyed by a single drive failure. On drive failure, any subsequent reads can be calculated from the distributed parity such that the drive failure is masked from the end user. RAID 5 requires at least three disks.

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