Dell EMC Associate – Information Storage and Management v4 — Question 5

A company plans to deploy a new application in their environment. The new application requires 5 TB of storage space. During peak workloads, the application is expected to generate 3000 IOPS with a typical I/O size of 3 KB. The capacity of each available disk drive is 750 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: A

Explanation

To meet the 5 TB storage requirement, you need 5 TB / 750 GB per drive = 7 drives. Each of these drives can provide up to 90 IOPS at 70% utilization, totaling 630 IOPS for 7 drives, which exceeds the required 3000 IOPS. Therefore, 7 drives fulfill both the capacity and performance needs, while the other options do not accurately represent the minimum number of drives needed.