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220-802 · Question #194

When walking past a server with a RAID 5 array, a technician hears a loud clicking noise. Which of the following could MOST likely occur?

The correct answer is C. Hard drive failure. A loud, repetitive clicking noise from a hard drive is classically known as the 'click of death' - a strong indicator that a drive's read/write head is failing and the drive is about to fail. RAID 5 can tolerate a single drive failure without data loss, so the array itself (D)…

Hardware and network troubleshooting

Question

When walking past a server with a RAID 5 array, a technician hears a loud clicking noise. Which of the following could MOST likely occur?

Options

  • ABSOD
  • BOS not found on boot
  • CHard drive failure
  • DRAID array failure

How the community answered

(31 responses)
  • B
    3% (1)
  • C
    94% (29)
  • D
    3% (1)

Explanation

A loud, repetitive clicking noise from a hard drive is classically known as the 'click of death' - a strong indicator that a drive's read/write head is failing and the drive is about to fail. RAID 5 can tolerate a single drive failure without data loss, so the array itself (D) may not fail immediately, but the individual drive is most immediately at risk. A BSOD (A) or 'OS not found' (B) are possible downstream consequences but are not the most direct and immediate outcome of the clicking symptom.

Topics

#RAID 5#hard drive failure#clicking noise#storage diagnostics

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