Suppose a disk drive has the following characteristics: 6 surfaces 1024 tracks per surface 256 sectors per track 512 bytes/sector Track-to-track seek time of 8 milliseconds Rotational speed of 5000 RPM. What is the total capacity of the drive? What is its average access time?

Suppose a disk drive has the following characteristics: 6 surfaces 1024 tracks per surface 256 sectors per track 512 bytes/sector Track-to-track seek time of 8 milliseconds Rotational speed of 5000 RPM. What is the total capacity of the drive? What is its average access time?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter5: Data Storage Technology

Section: Chapter Questions

Problem 1PE

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Concept explainers

Fundamentals of Input and Output Performance

The I/O subsystem is a component of computer system design that uses buses to assist communication between the Central Processing Unit, Computer Memory/Storage, and Input and Output Devices (that is known as peripheral devices). The I/O subsystem includes disc controllers, tape drives, discs, system buses, and other devices. The I/O database application reads and writes drives using the operating system windows I/O.

Question

Suppose a disk drive has the following characteristics:

6 surfaces
1024 tracks per surface
256 sectors per track
512 bytes/sector
Track-to-track seek time of 8 milliseconds
Rotational speed of 5000 RPM.

What is the total capacity of the drive?
What is its average access time?

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