SK0-003 · Question #313
Which of the following would be the BEST configuration when using seven SCSI drives in order to have full fault tolerance?
The correct answer is D. RAID 5. To achieve full fault tolerance with seven SCSI drives, RAID 5 is the most efficient configuration, balancing data redundancy with storage capacity.
Question
Which of the following would be the BEST configuration when using seven SCSI drives in order to have full fault tolerance?
Options
- ARAID 0+1
- BRAID 0
- CRAID 1
- DRAID 5
How the community answered
(42 responses)- A5% (2)
- B17% (7)
- C7% (3)
- D71% (30)
Why each option
To achieve full fault tolerance with seven SCSI drives, RAID 5 is the most efficient configuration, balancing data redundancy with storage capacity.
RAID 0+1 (RAID 10) typically requires an even number of drives (minimum 4) to create mirrored sets of striped arrays, making it less suitable and inefficient for seven drives.
RAID 0 provides no fault tolerance, as it simply stripes data across drives without any redundancy.
RAID 1 provides mirroring but is inefficient for seven drives, as it would only utilize half the drives for storage or leave some drives unused if configured for full mirroring.
RAID 5 stripes data and parity across all drives in the array, providing fault tolerance against a single drive failure and efficient use of storage space. With seven drives, it offers 6/7 capacity utilization while ensuring data availability if one drive fails.
Concept tested: RAID levels for fault tolerance and capacity
Topics
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