SCAN ii. C-SCAN iii. FIFO
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3. I/O Management: Disk Arm Scheduling & RAID
a. It is known that a disk drive has 256 cylinders, with cylinder numbers starting from 0 and ending at 255. The position of the needle on the disk drive currently stops at 128. It is also known that the needle always “goes to the cylinder with the smaller number first”. The order of the positions visited sequentially is: 254, 64, 32, 100, 50, 70. From the 3 choices of algorithms below, which one is the best
i. SCAN
ii. C-SCAN
iii. FIFO
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