ExerciSe A disk has the following parameters - Access size: 8KB Bandwidth: 80MB/s Controller overhead : 0.1 ms - Seek time 6ms - Rotation speed: 7200 rpm What is the average access time per transfer? If the disk controller has a 8MB cache that results in a 20% hit rate, what is the average access time? (Hits eliminate seek time and rotational latency) ExerciSe A disk has the following parameters - Access size: 8KB Bandwidth: 80MB/s Controller overhead : 0.1 ms - Seek time 6ms - Rotation speed: 7200 rpm What is the average access time per transfer? If the disk controller has a 8MB cache that results in a 20% hit rate, what is the average access time? (Hits eliminate seek time and rotational latency)