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SK0-003 · Question #13

Which of the following RAID levels provides high performance and potentially allows for the system to continue running with multiple disk failures?

The correct answer is D. RAID 10. RAID 10 provides both high performance and robust fault tolerance by combining mirroring and striping, allowing the system to potentially continue operating with multiple disk failures.

Server hardware installation and management

Question

Which of the following RAID levels provides high performance and potentially allows for the system to continue running with multiple disk failures?

Options

  • ARAID 0
  • BRAID 1
  • CRAID 5
  • DRAID 10

How the community answered

(34 responses)
  • A
    3% (1)
  • C
    3% (1)
  • D
    94% (32)

Why each option

RAID 10 provides both high performance and robust fault tolerance by combining mirroring and striping, allowing the system to potentially continue operating with multiple disk failures.

ARAID 0

RAID 0 provides high performance through data striping but offers no fault tolerance, meaning a single disk failure results in complete data loss and system failure.

BRAID 1

RAID 1 provides excellent fault tolerance by mirroring data, but its performance is generally not considered 'high' compared to striped arrays, and it typically protects against a single disk failure per mirrored pair.

CRAID 5

RAID 5 offers a balance of performance and fault tolerance, capable of surviving a single disk failure, but its performance is generally lower than RAID 10, and it cannot tolerate multiple simultaneous disk failures.

DRAID 10Correct

RAID 10, also known as RAID 1+0, combines the benefits of RAID 1 (mirroring) for data redundancy with RAID 0 (striping) for enhanced performance. This configuration ensures high read/write speeds due to striping and offers significant fault tolerance as it can withstand multiple drive failures, provided that no two failures occur within the same mirrored pair.

Concept tested: RAID levels performance and fault tolerance

Source: https://www.dell.com/support/manuals/en-us/perc-h730p-mini/perc_users_guide/supported-raid-levels?guid=guid-33758b29-b4b6-4b68-b769-02bb147514a4

Topics

#RAID levels#RAID 10#performance#fault tolerance

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