Suppose youve been asked to evaluate the performance of a mechanical disk drive with the following specifications:

Average Seek Time	8ms
Rotation Rate	15000rpm
Transfer Rate	10MB/s
Controller Overhead	1ms
# cylinders	16394
Sector Size	1KB
Sectors / Track	128

a. What is the average time to read or write a single sector?

b. What is the average time to read or write an entire track on the disk (128 consecutive sectors)?

c. Suppose an I/O system using a single disk of this specification receives 15 I/O requests per second such that each request reads or writes a single sector. What is the utilization of the I/O system? Assume the I/O system is in equilibrium.