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Suppose a disk drive has 5000 cylinders, numbered 0..4999. The drive is currently serving a request at cylinder 3800. It previously served a request at
Suppose a disk drive has 5000 cylinders, numbered 0..4999. The drive is currently serving a request at cylinder 3800. It previously served a request at cylinder 4500. The queue of pending requests, in FIFO order, is: 2500, 4950, 3200, 1300, 300. 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 SSTF disk-scheduling algorithm?
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