An HDD has an average seek time of 3ms, a rotation time of 4ms, and a transfer time of 0.01s. What is the average I/O time?Note: 1s = 1000ms
Question
An HDD has an average seek time of 3ms, a rotation time of 4ms, and a transfer time of 0.01s. What is the average I/O time?
Note: 1s = 1000ms
Solution
The average I/O time for a hard disk drive (HDD) can be calculated by adding the average seek time, rotation time, and transfer time.
Given:
- Average seek time = 3ms
- Rotation time = 4ms
- Transfer time = 0.01s = 10ms (since 1s = 1000ms)
Now, add these three times together:
Average I/O time = Average seek time + Rotation time + Transfer time Average I/O time = 3ms + 4ms + 10ms Average I/O time = 17ms
So, the average I/O time for the HDD is 17ms.
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