We assume a disk with 200 tracks and disk request queue has random requests in it. The requested disks in the order are 55,58,39,18,90,160,150,38,184 starting with a track 100.

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written 6.9 years ago by

0309rishika • 520

modified 4.0 years ago by

sagarkolekar ★ 11k

Calculate average seek length using FIFO ,SSTF, SCAN , C-SCAN. Give which disk scheduling is best for this scenario.

operating systems

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written 4.0 years ago by

binitamayekar ★ 6.7k

First Come First Serve (FCFS) Disk Scheduling

FCFS

Total Head Movements

= (100 - 55) + (58 - 55) + (58 - 39) + (39 - 18) + (90 - 18) + (160 - 90) + (160 - 150) + (150 - 38) + (184 - 38)

= 45 + 3 …

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