Question
Disk requests come into the disk driver for cylinders: 86, 1470, 913, 1774, 948, 1509, 1022, 1750, 130 in that order. The disk has 5000
Disk requests come into the disk driver for cylinders: 86, 1470, 913, 1774, 948, 1509, 1022, 1750, 130 in that order. The disk has 5000 total cylinders (numbered 0 to 4999) and the disk head positioned over cylinder 143 and previous request was at cylinder 125. What is the sequence of reads and calculate the total distance the read/write head will traverse using Shortest Seek Time First and SCAN algorithms?
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Database Systems For Advanced Applications 17th International Conference Dasfaa 2012 International Workshops Flashdb Items Snsm Sim Dqdi Busan South Korea April 2012 Proceedings Lncs 7240
Authors: Hwanjo Yu ,Ge Yu ,Wynne Hsu ,Yang-Sae Moon ,Rainer Unland ,Jaesoo Yoo
2012th Edition
3642290221, 978-3642290220
