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SK0-003 · Question #553

An administrator is required to maintain maximum redundancy for 1TB of accounting files. Which of the following is the BEST option available to the administrator?

The correct answer is D. Create a RAID 10 array using eight 300GB disks. To provide 1TB of storage with maximum redundancy for accounting files, a RAID 10 array using eight 300GB disks is the most suitable option.

Server hardware installation and management

Question

An administrator is required to maintain maximum redundancy for 1TB of accounting files. Which of the following is the BEST option available to the administrator?

Options

  • ACreate a RAID 5 array using eight 300GB disks.
  • BCreate a RAID 10 array using six 300GB disks.
  • CCreate a RAID 5 array using ten 300GB disks.
  • DCreate a RAID 10 array using eight 300GB disks.

How the community answered

(45 responses)
  • A
    2% (1)
  • B
    4% (2)
  • C
    11% (5)
  • D
    82% (37)

Why each option

To provide 1TB of storage with maximum redundancy for accounting files, a RAID 10 array using eight 300GB disks is the most suitable option.

ACreate a RAID 5 array using eight 300GB disks.

RAID 5 provides single disk failure tolerance, which is less redundant than RAID 10, despite offering 2.1TB of usable storage.

BCreate a RAID 10 array using six 300GB disks.
CCreate a RAID 5 array using ten 300GB disks.
DCreate a RAID 10 array using eight 300GB disks.Correct

RAID 10 combines mirroring (RAID 1) and striping (RAID 0) to offer superior performance and fault tolerance, capable of withstanding multiple disk failures as long as they are not mirrors in the same stripe set. This configuration yields a usable capacity of (8/2) * 300GB = 1.2TB, fulfilling the 1TB requirement and providing maximum redundancy among the given choices.

Concept tested: RAID levels, capacity, and redundancy

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

Topics

#RAID 10#RAID 5#data redundancy#storage capacity

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