Operating SystemPU Spring 2023
a) Given a disk drive with 400 cylinders. The driver is currently servinga request at cylinder 162 and previous request was at cylinder 128. The queue of pending request in FIFO order is: 90, 150,…
15- a) Given a disk drive with 400 cylinders. The driver is currently servinga request at cylinder 162 and previous request was at cylinder 128. The queue of pending request in FIFO order is: 90, 150, 386, 94, 187, 48, 278, 202, 188, and 135. Starting from the current head position what is the total distance in cylinders that the disk to satisfy all the pending request for each of the following disk scheduling algorithms?
- v) FCFS _ vii) SCAN viii)C-Look
- b) How file naming is done? Discuss different file allocation methods.
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