SK0-005 Question #579: Real Exam Question with Answer & Explanation

Question

A new client has a two-drive NAS that shows 878 of capacity with 60% utilization. While troubleshooting an issue for the client, a technician notices the NFS folders are empty. Upon further investigation, the technician discovers the client changed the configuration from RAID 0 to RAID 1. Which of the following is the most likely reason for this issue?

Options

• AData corruption
• BRAID card damage
• CMedia failure
• DArray rebuild

Explanation

Changing a NAS configuration from RAID 0 to RAID 1 on a two-drive system would likely initiate an array rebuild or reinitialization, leading to the loss of existing data.

Common mistakes.

• A. While data loss occurred, 'data corruption' implies data became unusable due to errors, whereas here the data was likely overwritten or lost due to the reinitialization of the array.
• B. There is no information to suggest the RAID card is damaged; the issue directly follows a configuration change, implying a logical rather than hardware problem.
• C. Media failure refers to a physical issue with a hard drive, but both drives are implied to be operational given the capacity is shown and the issue arose after a configuration change.

Concept tested. RAID level migration data loss

Reference. https://www.intel.com/content/www/us/en/support/articles/000005701/technologies/intel-rapid-storage-technology-intel-rst.html

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