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Q1 /A 7200 RPM drive has a full-stroke seek time of 18 ms. It transfers data internally at a rate of 40 MB s1 and

Q1/A 7200 RPM drive has a full-stroke seek time of 18 ms. It transfers data internally at a rate of 40 MB s1 and has a block size of 32 kB. Determine the IOPS for that drive.

Q2/The disk service time is 18 ms when the controller utilisation is 50 % . Calculate the expected disk service time when the controller utilisation is 70 %

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