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SK0-003 · Question #30

Which of the following RAID levels would provide the BEST performance with no fault protection?

The correct answer is A. RAID 0. RAID 0 offers the highest read/write performance by striping data across multiple disks, but it provides no data redundancy or fault protection.

Server hardware installation and management

Question

Which of the following RAID levels would provide the BEST performance with no fault protection?

Options

  • ARAID 0
  • BRAID 1
  • CRAID 3
  • DRAID 5

How the community answered

(36 responses)
  • A
    94% (34)
  • B
    3% (1)
  • D
    3% (1)

Why each option

RAID 0 offers the highest read/write performance by striping data across multiple disks, but it provides no data redundancy or fault protection.

ARAID 0Correct

RAID 0, also known as striping, distributes data blocks across multiple drives without any parity or mirroring. This parallel data access maximizes both read and write performance because operations can occur concurrently across all disks, but it offers no fault tolerance as the failure of a single drive results in total data loss.

BRAID 1

RAID 1 (mirroring) duplicates data across two drives for fault protection, which provides redundancy but does not offer the best performance compared to RAID 0 due to write overhead.

CRAID 3

RAID 3 (byte-level striping with dedicated parity) provides fault protection and has performance implications due to parity calculations and a single parity drive bottleneck.

DRAID 5

RAID 5 (block-level striping with distributed parity) provides fault protection by distributing parity data across all drives, which incurs a performance overhead, especially for writes, compared to RAID 0.

Concept tested: RAID levels performance and fault protection

Topics

#RAID levels#RAID 0#Performance optimization#Data redundancy

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