Question: Suppose that a disk drive has 200 cylinders, numbered 0 to 199 . The drive is currently serving a request at cylinder 140 , and

Suppose that a disk drive has 200 cylinders, numbered 0 to

Suppose that a disk drive has 200 cylinders, numbered 0 to 199 . The drive is currently serving a request at cylinder 140 , and the previous request was at cylinder 125. The queue of pending requests, in FIFO order, is 10,70,170,40 Starting from the current head position, what is the total distance (in cylinders) that the disk arm moves to satisfy all the pending requests, for each of the following disk-scheduling algorithms? (Note: Show all movements: Example - CLOOK: 56-> 70: 14; etc...then Total: NNN Copy and Paste the following in your answer: A. FCFS: B. SSTF: C. SCAN: D. LOOK

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Let N = {O, n1, n2, n3} be the Earth-centered inertial (ECI) reference frame, with its origin at the center of the Earth. The Earth-centered Earth-fixed (ECEF) reference frame E = {O, e1, e2, e3} has...

5. Storage Management: Suppose that a disk drive has 200 cylinders, numbered 0 to 199 . The drive is currently serving a request at cylinder 53 , and the. The queue of pending requests, in FIFO...

This question is from Operating System. Suppose that a disk drive has 6,000 cylinders, numbered 0 to 5999. The drive is currently serving a request at cylinder 2350, and the previous request was at...

[ 2 4 points ] Problem 3 Page Replacement Algorithms Consider the following page reference string: 1 , 2 , 5 , 3 , 1 , 5 , 4 , 2 , 5 , 3 , 4 , 2 , 3 , 1 , 3 , 2 Assuming demand paging with 3 frames....

Operating Systems Suppose that a disk drive has 3000 cylinders, numbered 0 to 2999. The drive is currently serving a request at cylinder 140, and the previous request was at cylinder 125. The queue...

Question 1: Suppose that a disk drive has 2000 cylinders, numbered 0 to 1999. The drive is currently serving a request at cylinder 150, and the previous request met was at cylinder 140. The queue of...

Operating Systems Suppose that a disk drive has 500 cylinders, numbered 0 to 499. The drive is currently serving a request at cylinder 140, and the previous request was at cylinder 125. The queue of...

Suppose that a disk drive has 2000 cylinders, numbered 0 to 1999. The drive is currently serving a request at cylinder 150, and the previous request met was at cylinder 140. The queue of pending...

9. Suppose that a disk drive has 2000 cylinders, numbered 0 to 1999. The drive is currently serving a request at cylinder 130, and the previous request was at cylinder 124. The queue of pending...

1B. Suppose that a disk drive has 200 cylinders, numbered from 0 to 199. The drive is currently serving a request at cylinder 60 and the queue of pending requests is: 86, 159, 39, 139, 35, 71, 65,...

Question Four 1 Mark Question Four Suppose that a disk drive has 5,000 cylinders, numbered 0 to 4,999. The drive is currently serving a request at cylinder 2,150, and the previous request was at...

A 1995 study predicted that employment in base metal mining would decline by 3.5% per year for the next five years. What percentage of total base metal mining jobs was expected to be lost during the...

Answer the following by appropriately matching the list based on the information given in the paragraph. In a thermodynamic process on an ideal monatomic gas, the infinitesimal heat absorbed by the...

Which of the following is the least effective measure of operating performance? 1 . ROE 2 . ROA 3 . All of the options are equally ineffective measures of operating performance. 4 . ROC

Compared with half a century ago, adoption has become _ _ _ _ _ _ _ _ _ common, but it is more open and acceptabl e , so we probably discuss it _ _ _ _ _ _ _ . fill in the blanks more or much less or...

6. Many employees are unwilling to relocate geographically because they like their current community and because spouses and children prefer not to move. As a result, it is difficult to develop...

5. Your boss is interested in hiring a consultant to help identify potential managers from current employees of a fast-food restaurant. The managers job is to help wait on customers and prepare food...

10. How do volunteer assignments and job experiences contribute to employee development?