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Example- 5.8 A hard disk with one platter rotates at 15,000 rpm and has 1024 and has 1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 ms for every 100 tracks it crosses. (a) What is the average seek time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?

Example- 5.8 A hard disk with one platter rotates at 15,000 rpm and has 1024 and has 1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 ms for every 100 tracks it crosses. (a) What is the average seek time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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dont try attempting , if you are not very very good at CS . i will report your account. if you do any  kind of shit in answer section.


 
 
Example- 5.8 A hard disk with one platter rotates at 15,000 rpm and has 1024 and has 1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 ms for every 100 tracks it crosses. (a) What is the average seek time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?
Transcribed Image Text:Example- 5.8 A hard disk with one platter rotates at 15,000 rpm and has 1024 and has 1024 tracks, each with 2048 sectors. Disk read-write head starts at track 0. (Tracks are numbered from 0 to 1023). The Disk receives a request to access a random sector on a random track. If the seek time of the disk head is 1 ms for every 100 tracks it crosses. (a) What is the average seek time? (b) What is the average rotational latency? (c) What is the transfer time for a sector?
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