220-1101 · Question #361
A server administrator is building a new application server. Which of the following RAID levels provides MAXIMUM performance and redundancy?
The correct answer is D. RAID 10. RAID 10 (also written RAID 1+0) combines mirroring (RAID 1) and striping (RAID 0). Data is simultaneously striped across drives for high read/write performance AND mirrored for fault tolerance, allowing it to survive multiple drive failures as long as the failed drives are not…
Question
A server administrator is building a new application server. Which of the following RAID levels provides MAXIMUM performance and redundancy?
Options
- ARAID 0
- BRAID 1
- CRAID 5
- DRAID 10
How the community answered
(14 responses)- A7% (1)
- B7% (1)
- C14% (2)
- D71% (10)
Explanation
RAID 10 (also written RAID 1+0) combines mirroring (RAID 1) and striping (RAID 0). Data is simultaneously striped across drives for high read/write performance AND mirrored for fault tolerance, allowing it to survive multiple drive failures as long as the failed drives are not in the same mirror pair. This makes it the best choice when both maximum performance and strong redundancy are required. RAID 0 offers maximum performance but zero redundancy - a single drive failure loses all data. RAID 1 offers redundancy but no performance gain from striping. RAID 5 offers a balance of performance and redundancy using parity, but its write performance is lower than RAID 10 due to parity calculation overhead, and it can only tolerate a single drive failure.
Topics
Community Discussion
No community discussion yet for this question.