I/O and Storage

Disk Scheduling

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LearnStep 1 of 2

Disk Scheduling

Learning Objectives

•Understand disk structure
•Learn scheduling algorithms
•Calculate seek times

Lesson Outline

LearnStep 1/2

Disk Scheduling

Disk Scheduling Algorithms

Disk Structure

Disk Access Time

1. FCFS (First-Come, First-Served)

2. SSTF (Shortest Seek Time First)

3. SCAN (Elevator Algorithm)

4. C-SCAN (Circular SCAN)