Answer to Question #120177 in Software Engineering for lahari

Question

A hard disk with one platter rotates at 15,000r=min and has 1024 tracks, each with 2048 sectors. The disk head starts at track 0 (tracks are numbered from 0 to 1023). The disk then receives a request to access a random sector on a random track. If the seek time of the disk head is 1ms for every 100 tracks it must cross:
a. What is the average seek time?
b. What is the average rotational latency?
c. What is the transfer time for a sector?
d. What is the total average time to resolve a request?

Answer 1

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