Consider a disk drive with 2,000 cylinders, numbered from 0 to 1,999. The request queue has the following composition: 1050, 360, 700, 890, 1780, 640, 120, 380, 1360, 1640 If the current position is 1070 and the previous request was served at 999, show the movement of the disk arm and compute the total distance (in cylinders) for each of the following algorithms: a) FIFO (First-in First-out) b) SSTF (Shortest Seek Time First) c) SCAN d) C-SCAN e) C-LOOK

Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Consider a disk drive with 2,000 cylinders, numbered from 0 to 1,999. The request
queue has the following composition:
1050, 360, 700, 890, 1780, 640, 120, 380, 1360, 1640
If the current position is 1070 and the previous request was served at 999, show the
movement of the disk arm and compute the total distance (in cylinders) for each of the
following algorithms:
a) FIFO (First-in First-out)
b) SSTF (Shortest Seek Time First)
c) SCAN
d) C-SCAN
e) C-LOOK
Transcribed Image Text:Consider a disk drive with 2,000 cylinders, numbered from 0 to 1,999. The request queue has the following composition: 1050, 360, 700, 890, 1780, 640, 120, 380, 1360, 1640 If the current position is 1070 and the previous request was served at 999, show the movement of the disk arm and compute the total distance (in cylinders) for each of the following algorithms: a) FIFO (First-in First-out) b) SSTF (Shortest Seek Time First) c) SCAN d) C-SCAN e) C-LOOK
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