y a disk drive fo 60, 70, 35, 90. 50. A seek take ow much seek

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Disk requests are received by a disk drive for
cylinder 20, 25, 45, 5, 10, 17, 60, 70, 35, 90.
Currently head is at cylinder 50. A seek takes 2
msec per cylinder moved. How much seek time
is required for a shortest seek time first
algorithm?
Transcribed Image Text:Disk requests are received by a disk drive for cylinder 20, 25, 45, 5, 10, 17, 60, 70, 35, 90. Currently head is at cylinder 50. A seek takes 2 msec per cylinder moved. How much seek time is required for a shortest seek time first algorithm?
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