Multiple choice technology architecture

Which of the following RAID solutions provides fault tolerance without affecting performance in the event of a drive failure ?

  1. Striping

  2. Mirroring

  3. Parity

  4. Clustering
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mirroring (RAID 1) is correct because it provides fault tolerance through disk duplication and maintains full performance on drive failure - the remaining disk continues serving requests at normal speed. Parity-based RAID (like RAID 5) suffers significant performance degradation during rebuild as it reconstructs data from parity information.

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