Dell Technologies Proven Professional – Unity XT — Question 8

A company needs to expand their dynamic pool by 10 TB. The current dynamic pool consists of 63 7.6 TB SSD drives that are configured for RAID 5 (12+1).
What is the minimum number of drives needed for the pool expansion?

Answer options

• A. 1
• B. 15
• C. 13
• D. 2

Correct answer: C

Explanation

The correct answer is C, as 13 additional 7.6 TB drives are needed to achieve at least 10 TB of usable space after accounting for RAID 5 overhead. Options A, B, and D do not provide enough capacity to meet the 10 TB expansion requirement due to insufficient total usable space once redundancy is factored in.