Question
Suppose the head of a moving-head disk with 200 tracks numbered 0 to 199 is currently serving a request at track 100 and has just
Suppose the head of a moving-head disk with 200 tracks numbered 0 to 199 is currently serving a request at track 100 and has just finished a request at track 105. The queue order of outstanding requests in FIFO order is 140,10,130,15,35,90
What is the total number of head movements (in cylinders) for the following disk-scheduling algorithm a)FCFS b) SSTF C) SCAN
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PostgreSQL 10 High Performance Expert Techniques For Query Optimization High Availability And Efficient Database Maintenance
Authors: Ibrar Ahmed ,Gregory Smith ,Enrico Pirozzi
3rd Edition
1788474481, 978-1788474481
