SK0-003 · Question #107
Which of the following RAID levels would be the BEST choice if performance was the only determining factor?
The correct answer is A. RAID 0. RAID 0, also known as striping, offers the best performance among RAID levels by distributing data across multiple disks without redundancy, maximizing read and write speeds.
Question
Which of the following RAID levels would be the BEST choice if performance was the only determining factor?
Options
- ARAID 0
- BRAID 1
- CRAID 5
- DRAID 10
How the community answered
(66 responses)- A92% (61)
- B2% (1)
- C2% (1)
- D5% (3)
Why each option
RAID 0, also known as striping, offers the best performance among RAID levels by distributing data across multiple disks without redundancy, maximizing read and write speeds.
RAID 0 stripes data across all disks in the array, meaning different blocks of a file are written to different drives simultaneously. This parallel access significantly increases both read and write performance because multiple disk heads can work concurrently, making it the best choice when performance is the sole concern, despite lacking fault tolerance.
RAID 1 (mirroring) duplicates data across two disks for redundancy, but it does not offer the same performance gains as striping.
RAID 5 uses striping with distributed parity, offering good performance and fault tolerance, but its write performance is lower than RAID 0 due to parity calculations.
RAID 10 (or RAID 1+0) combines mirroring and striping, providing excellent performance and fault tolerance, but it is not purely the best for performance compared to RAID 0 due to the overhead of mirroring.
Concept tested: RAID levels and performance characteristics
Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/raid-levels
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