Dell EMC Associate – Information Storage and Management v4 — Question 56

A company plans to deploy a new application in their environment. The new application requires 2 TB of storage space. During peak workloads, the application is expected to generate 4500 IOPS with a typical I/O size of 4 KB. The capacity of each available disk drive is 250 GB. In addition, the maximum number of IOPS a drive can perform at with a 70% utilization is 90 IOPS.
What is the minimum number of disk drives needed to meet the application's capacity and performance requirements for a RAID 0 configuration?

Answer options

Correct answer: D

Explanation

To meet the 2 TB storage requirement, a total of 8 drives is needed (2 TB / 250 GB = 8). For performance, with 4500 IOPS needed and 90 IOPS per drive at 70% utilization, 50 drives are required (4500 IOPS / 90 IOPS per drive = 50). Therefore, the total number of drives needed is 70, which is the maximum of the two requirements, making option D the correct answer.