CACS251 Operating System

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What is Disk Access Time and Disk Response Time? Suppose that a disk has 200 cylinders, numbered (0 199). The drive is currently serving a request at cylinder 43/and previous request was at cylinder…

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What is Disk Access Time and Disk Response Time? Suppose that a disk has 200 cylinders, numbered (0-199). The drive is currently serving a request at cylinder 43/and previous request was at cylinder 25. The queue of pending request, in FIFO order is: 55, 58, 39, 18, 90, 160, 150, 38, 184. Starting from the current head position, what is total distance (in cylinders) that the disk arm moves to satisfy all pending request for each of following disk scheduling algorithms? a) FCFS b) SSTF c) C-SCAN d) LOOK

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