Using the disk drive specifications given in Exercise 8.5, calculate the time required to read a 10MB file assuming

(a) The file is stored on a series of contiguous tracks, as few tracks as possible.

(b) The file is spread randomly across the disk in 4KB clusters.

Show your calculations.

Data from in Exercise 8.5

Assume that a disk drive is configured as follows. The total storage is approximately 1033MB divided among 15 surfaces. Each surface has 2100 tracks, there are 64 sectors/track, 512 bytes/sector, and 8 sectors/cluster. The disk turns at 7200 rpm. The track-to-track seek time is 3 ms, and the average seek time is 20 ms. Now assume that there is a 512KB file on the disk. On average, how long does it take to read all of the data on the file? Assume that the first track of the file is randomly placed on the disk, that the entire file lies on contiguous tracks, and that the file completely fills each track on which it is found. Show your calculations.