Question
The Megatron 777 disk has the following characteristics: 1. There are ten surfaces, with 100,000 tracks each. 2. Tracks hold an average of 1000 sectors
The Megatron 777 disk has the following characteristics:
1. There are ten surfaces, with 100,000 tracks each.
2. Tracks hold an average of 1000 sectors of 1024 btyes each.
3. 20% of each track is used for gaps.
4. The disk rotates at 10,000 rpm.
5. The time it takes the head to move n tracks is 1 + 0.0002n milliseconds.
Answer the following questions about the Megatron 777.
a) What is the capacity of the disk?
b) If tracks are locatd on the outer inch of a 3.5-inch-diamter surface, what is the average density of bits in the sectors of a track?
c) What is the maximum seek time?
d) What is the maximum rotational latency?
e) If a block is 65,546 bytes (i.e., 64 sectors), what is the transfer time of a block?
f) What is the average seek time?
g) What is the average rotational latency?
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