Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Consider the Megatron 777 disk with the following characteristics: -10 surfaces with 10,000 tracks each; -Each sector is 512 bytes and each track on average

Consider the Megatron 777 disk with the following characteristics:

-10 surfaces with 10,000 tracks each;

-Each sector is 512 bytes and each track on average has 1000 sectors;

-20% of each track is used for gaps;

-The disk rotates at 10,000 rounds per minute;

-The time to move the head k tracks is 1 + 0.001k ms.

Answer the following questions about the Megatron 777.

(1) Determine the capacity of each cylinder of the disk.

(2) If a block were 32 sectors, how long would it take to transfer two consecutive blocks?

(3) What is the average time to update two blocks of data on the same track? Assume the read/write head is on this track.(Assume two blocks are not consecutive)

(4) Suppose the disk head is at track 2500 that is 1/4 of the way across the tracks. If the next request is for a block on a random track, calculate the average time to read this block.

Thanks!

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Upgrading Oracle Databases Oracle Database New Features

Authors: Charles Kim, Gary Gordhamer, Sean Scott

1st Edition

B0BL12WFP6, 979-8359657501

More Books

Students also viewed these Databases questions

Question

2. Why?

Answered: 1 week ago

Question

1. Where do these biases come from?

Answered: 1 week ago