Question 2: Consider a virtual cylinder, with the following characteristics: see

Question

Question 2: Consider a virtual cylinder, with the following characteristics: seek time is 4ms/track, search time is 1.7ms/sector, and data transfer time is 0.9 ms. Calculate the resulting seek time, search time, data transfer time, and total tie for the following request list, assuming that the read/write head begins at Track 0, sector 0. Finally, calculate the total time required to meet all of the requests.

I'm having trouble figuring out how to exactly calculate the seek time

Track

Sector

1

0

1

4

1

0

3

1

2

4

3

0

Track

Sector

1

0

1

4

1

0

3

1

2

4

3

0

Explanation / Answer

total seek time =16 ms as it is traversing from track 1 to track 3 to track 2 to again track 3

so 3-1=2

3-2=1

3-2=1

so 1+1+2=4

total head movement of 4 cylinders or tracks

per track seek time is 4ms

so total seek time =16 ms.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.