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SK0-003 · Question #461

A technician is installing a server with sixteen 1 TB drives. They want the benefit of both speed and redundancy. Which of the following RAID configurations should be used?

The correct answer is D. RAID 50. For a server with sixteen 1 TB drives needing both speed and redundancy, RAID 50 is the optimal configuration. It combines the performance benefits of striping with the fault tolerance of parity for large disk arrays.

Server hardware installation and management

Question

A technician is installing a server with sixteen 1 TB drives. They want the benefit of both speed and redundancy. Which of the following RAID configurations should be used?

Options

  • ARAID 0
  • BRAID 1
  • CRAID 3
  • DRAID 50

How the community answered

(45 responses)
  • A
    4% (2)
  • B
    13% (6)
  • C
    2% (1)
  • D
    80% (36)

Why each option

For a server with sixteen 1 TB drives needing both speed and redundancy, RAID 50 is the optimal configuration. It combines the performance benefits of striping with the fault tolerance of parity for large disk arrays.

ARAID 0

RAID 0 provides striping for speed but offers no redundancy, meaning a single drive failure results in data loss.

BRAID 1

RAID 1 provides mirroring for redundancy but sacrifices 50% of storage capacity and does not offer significant speed improvement for writes compared to single disks, especially with many drives.

CRAID 3

RAID 3 uses byte-level striping with a dedicated parity drive, offering good performance for large sequential reads but can be slow for random access and has a single point of failure for parity. It is less common than other RAID levels for general-purpose servers.

DRAID 50Correct

RAID 50, also known as RAID 5+0, stripes data across multiple RAID 5 arrays. This configuration provides the speed benefits of striping (RAID 0) and the redundancy and fault tolerance of parity (RAID 5), making it suitable for a large number of drives where both performance and protection are critical.

Concept tested: RAID levels for speed and redundancy

Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/understanding-raid

Topics

#RAID configuration#disk redundancy#storage performance#RAID 50

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