To Implement Disk Scheduling Algorithms

Procedure

1. Select Algorithm: Choose the disk scheduling algorithm you want to test: FCFS, SSTF, SCAN, or C-SCAN.
2. Input the required values: Enter the desired comma-separated cylinder numbers representing disk requests in the input field. Also, enter the initial head position of the disk and direction of movement(if required).
3. Submit: Click the "SUBMIT" button to initiate the simulation.
4. View Results: The simulation will automatically generate a visual representation of the disk head movement and an output displaying the seek sequence. Also, calculate the average seek time.
5. Calculate Average Seek Time: Enter the required values in the input box and click on the "SUBMIT" button.
   Formula: Average Seek Time =  $\frac{\mathrm{Total\; Seek\; Time}}{\mathrm{Total\; Seek\; Operations}}$
6. Analyze Results: Examine the graph and the data in the output to understand the following:
   • Head Movement Pattern: Observe the path the disk head takes to service the requests.
   • Seek Time: Analyze how the seek time (distance traveled) varies for each request and the total seek time for the entire process.
   • Algorithm Efficiency: Compare the performance of different algorithms based on their total seek time and the pattern of head movement.
7. Repeat for Different Scenarios: Experiment with different request queues, head positions, and algorithm selections to observe how the results change.