Dell EMC Specialist – Systems Administrator, Unity XT — Question 29

A customer wants to expand their Dell EMC Unity Hybrid system, which includes a pool of 64 drives in a RAID 5 (4+1) configuration. What is the minimum number of drives needed to expand the pool?

Answer options

• A. 1
• B. 5
• C. 6
• D. 7

Correct answer: C

Explanation

To expand a RAID 5 (4+1) configuration, you need to add at least one additional drive to maintain the RAID integrity and provide additional storage. However, since RAID 5 requires a minimum of 5 drives to form a new RAID set that allows for redundancy, the correct answer is 6 drives, which allows for the expansion while adhering to RAID requirements. The other options do not provide enough drives to maintain the RAID structure.