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220-1101 · Question #870

220-1101 Question #870: Real Exam Question with Answer & Explanation

The correct answer is A: HDD. A blinking red light on a RAID array bay, combined with degraded performance, almost universally indicates a failing or failed hard disk drive within the array.

Hardware and network troubleshooting

Question

A company's RAID array has degraded performance and a blinking red light on one of the bays. Which of the following should a technician replace?

Options

  • AHDD
  • BCPU
  • CPSU
  • DRAM

Explanation

A blinking red light on a RAID array bay, combined with degraded performance, almost universally indicates a failing or failed hard disk drive within the array.

Common mistakes.

  • B. A CPU failure would typically lead to a complete system crash or boot failure, not just degraded RAID performance with a specific bay light.
  • C. A PSU (Power Supply Unit) issue would affect the entire system's power, potentially leading to a complete shutdown or erratic behavior, not a single bay's light and degraded RAID.
  • D. RAM issues often cause system crashes, blue screens of death, or application errors, but are not directly indicated by a blinking red light on a drive bay in a RAID array.

Concept tested. RAID array troubleshooting - failed drive identification

Reference. https://www.intel.com/content/www/us/en/support/articles/000006233/technologies/intel-rapid-storage-technology-intel-rst.html

Topics

#RAID#Hard Drive#Troubleshooting#Hardware failure

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