Disk Scheduling (Cont.)

• Effective bandwidth is determined by the disk parameters, the specific scenario, and the disk scheduling algorithm used.

• We illustrate the different algorithms assuming a disk with 200 cylinders (0-199) and the following scenario.

 98, 183, 37, 122, 14, 124, 65, 67

• We assume that in the beginning, the disk head is at cylinder 53.

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