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LPI

201-450 · Question #126

What is the usable disk space of a RAID 5 array of five 18GB drives with one drive dedicated as a spare?

The correct answer is C. 54GB. See the full explanation below for the reasoning.

205 Advanced Storage Device Administration

Question

What is the usable disk space of a RAID 5 array of five 18GB drives with one drive dedicated as a spare?

Options

  • A18GB
  • B36GB
  • C54GB
  • D72GB
  • E90GB

How the community answered

(43 responses)
  • A
    14% (6)
  • B
    7% (3)
  • C
    74% (32)
  • D
    2% (1)
  • E
    2% (1)

Topics

#RAID5#usable space#hot spare#disk capacity calculation

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