RAID is a technique used to offer live backups of physical hard drives even if it reduces the hard drive's usable capacity. Would you prefer to have backup at the expense of about half of your disc capacity, or the opposite? Which form of RAID is ideal for a home computer system that often endures power outages that might cause hard disk failures?

RAID is a technique used to offer live backups of physical hard drives even if it reduces the hard drive's usable capacity. Would you prefer to have backup at the expense of about half of your disc capacity, or the opposite? Which form of RAID is ideal for a home computer system that often endures power outages that might cause hard disk failures?

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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Operating systems constantly store successive blocks of a file on successive blocks of storage medium. Why is this so important when working with magnetic disks?
Despite the fact that RAID lowers the useable capacity of the hard drive, it is a method used to provide live backups of physical hard drives. Would you want to have backup at the cost of about half of your disc space or the other way around. For a residential computer system that experiences frequent power outages that might result in hard disc failures, which kind of RAID is the most appropriate?
Creating a RAID array is a way for producing live backups of physical hard drives; however, doing so will lower the amount of available capacity on the physical hard drive. Alternatively, would you like to have backup at the cost of half of your available disc space? The ideal RAID configuration for a home computer system with frequent power outages that may result in hard disc failures is determined by the frequency of power outages.
Operating systems make every effort to ensure that consecutive blocks of a file are stored on consecutive blocks of storage medium. Why is it so important to do so while working with magnetic disks?
Creating a RAID array is a technique for generating live backups of physical hard drives, although doing so will reduce the available capacity of the hard drive. Alternatively, would you want to have backup at the expense of half your available disc space? When it comes to a home computer system that has regular power outages that might result in hard disc failures, which form of RAID is the best choice?
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Magnetic drives may be partitioned in such a way that databases only utilize the tracks on the exterior of the drive, while the tracks on the interior of the drive are left unused. This strategy is sometimes referred to as a "hot-spot" method. It will take some time before the advantages can be clearly seen.
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There are a variety of methods that may be used in order to conduct a forensically sound data recovery from a solid-state disk.
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