3. A very important component of building a data centre is designing the storage based on application requirements and disk performance. The average I/O size of a simple King college web application is 64 KB. The following specifications are available from the disk manufacturer: average seek time = 5 ms, 7,200 RPM, transfer rate = 40 MB/s. Determine the maximum IOPS that could be performed with this disk for this application. Taking this case as an example, explain the relationship between disk utilization and IOPS.

4. The King College application necessary for the storage architecture specifies a requirement of 200 GB to host a database and other files. It also specifies that the storage environment should support 5,000 IOPS during its peak workloads. The disks available for configuration provide 66 GB of usable capacity, and the manufacturer specifies that they can support a maximum of 140 IOPS. The application is response time sensitive and disk utilization beyond 60 percent does not meet the response time requirements. Compute and explain the theoretical basis for the minimum number of disks that should be configured to meet the requirements of the application.

5. Between RAID 6 and RAID 10; which would you recommend for implementation and why? How can the choice of RAID technology impact Disk Performance? Note: No budgetary constraint.