Free Essay

Unit 6 Assignment 1: Video Summary 4 ( Raid )

In:

Submitted By alejandr012
Words 308
Pages 2
Alberto Legra
01/28/2016
Unit 6 Assignment 1: Video summary 4 (RAID)

1. URL Of video. https://www.youtube.com/watch?v=eE7Bfw9lFfs 2. Summary of video.
In this video we learn the meaning of raid, what it does, and how to efficiently configure raid arrays. RAID stands for Redundant Array of Independent Disks. The three most common types of RAID; RAID 0, RAID 1, and RAID 10. Different raid configurations offer different advantages, like speed and reliability. RAID 0 is all about speed, by striping the data across 2 drives you can keep all of the capacity and double the read and write performance. However, RAID 0 provides no reliability, if one of your drives fail you will all of your data. RAID 1 in the other hand provides maximum reliability, but no performance increase. When both performance and reliability are needed, there is the option for a RAID 10 configuration. To configure a RAID 10 array, you need four drives, stripe the data on all four drives and mirror two against two. This RAID configuration allows you to get about double the performance and capacity of an individual drive, and you can lose up two drives without losing any data. 3. 3 topics mentioned in the video. * The meaning of RAID * Pros and cons of RAID configurations * How to configure RAID 4. 3 terms used in the video and their definitions. * Data striping: The technique of segmenting logically sequential data, such as a file. * RAID: Data storage virtualization technology that combines multiple physical disk drive components into a single logical unit for the purposes of data redundancy, performance improvement, or both. * RAID Controller: A hardware device or software program used to manage hard disk drives (HDDs) or solid-state drives (SSDs) in a computer or storage array so they work as a logical unit.

Similar Documents

Premium Essay

Abcdef

...Vol.1 FE Exam Preparation Book Preparation Book for Fundamental Information Technology Engineer Examination Part1: Preparation for Morning Exam Part2: Trial Exam Set INFORMATION-TECHNOLOGY PROMOTION AGENCY, JAPAN FE Exam Preparation Book Vol. 1 Table of Contents Part 1 Chapter 1 PREPARATION FOR MORNING EXAM Computer Science Fundamentals 1.1 Basic Theory of Information 1.1.1 Radix Conversion 1.1.2 Numerical Representations 1.1.3 Non-Numerical Representations 1.1.4 Operations and Accuracy Quiz 1.2 Information and Logic 1.2.1 Logical Operations 1.2.2 BNF 1.2.3 Reverse Polish Notation Quiz 1.3 Data Structures 1.3.1 Arrays 1.3.2 Lists 1.3.3 Stacks 1.3.4 Queues (Waiting lists) 1.3.5 Trees 1.3.6 Hash Quiz 1.4 Algorithms 1.4.1 Search Algorithms 1.4.2 Sorting Algorithms 1.4.3 String Search Algorithms 1.4.4 Graph Algorithms Quiz Questions and Answers 2 3 3 7 10 11 14 15 15 18 21 24 25 25 27 29 30 32 34 37 38 38 41 45 48 50 51 i Chapter 2 Computer Systems 2.1 Hardware 2.1.1 Information Elements (Memory) 2.1.2 Processor Architecture 2.1.3 Memory Architecture 2.1.4 Magnetic Tape Units 2.1.5 Hard Disks 2.1.6 Terms Related to Performance/ RAID 2.1.7 Auxiliary Storage / Input and Output Units 2.1.8 Input and Output Interfaces Quiz 2.2 Operating Systems 2.2.1 Configuration and Objectives of OS 2.2.2 Job Management 2.2.3 Task Management 2.2.4 Data Management and File Organization 2.2.5 Memory Management Quiz 2.3 System Configuration Technology 2.3.1 Client...

Words: 26218 - Pages: 105

Premium Essay

Computer Organization and Architecture Designing for Performance 8th Edition

...COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE EIGHTH EDITION William Stallings Prentice Hall Upper Saddle River, NJ 07458 Library of Congress Cataloging-in-Publication Data On File Vice President and Editorial Director: Marcia J. Horton Editor-in-Chief: Michael Hirsch Executive Editor: Tracy Dunkelberger Associate Editor: Melinda Haggerty Marketing Manager: Erin Davis Senior Managing Editor: Scott Disanno Production Editor: Rose Kernan Operations Specialist: Lisa McDowell Art Director: Kenny Beck Cover Design: Kristine Carney Director, Image Resource Center: Melinda Patelli Manager, Rights and Permissions: Zina Arabia Manager, Visual Research: Beth Brenzel Manager, Cover Visual Research & Permissions: Karen Sanatar Composition: Rakesh Poddar, Aptara®, Inc. Cover Image: Picturegarden /Image Bank /Getty Images, Inc. Copyright © 2010, 2006 by Pearson Education, Inc., Upper Saddle River, New Jersey, 07458. Pearson Prentice Hall. All rights reserved. Printed in the United States of America. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to: Rights and Permissions Department. Pearson Prentice Hall™ is a trademark of Pearson Education, Inc. Pearson® is a registered trademark of...

Words: 239771 - Pages: 960

Premium Essay

Monicah

...Windows Server® 2008 FOR DUMmIES ‰ by Ed Tittel and Justin Korelc Windows Server® 2008 For Dummies® Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4355, or online at http:// www.wiley.com/go/permissions. Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries, and may not be used without written permission...

Words: 139691 - Pages: 559

Premium Essay

Server 2008 for Dummies

...Windows Server® 2008 FOR DUMmIES ‰ by Ed Tittel and Justin Korelc Windows Server® 2008 For Dummies® Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana Published by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4355, or online at http:// www.wiley.com/go/permissions. Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries, and may not be used without written permission...

Words: 139691 - Pages: 559

Premium Essay

Quality Control Plan

...Contingency Plan Template Appendix I-3 CONTINGENCY PLAN Version Submitted to: Submitted By: Table of Contents 1 Executive Summary 1 2 Introduction 1 2.1 Purpose 3 2.2 Scope 3 2.3 Plan Information 3 3 Contingency Plan Overview 4 3.1 Applicable Provisions and Directives 4 3.2 Objectives 4 3.3 Organization 5 3.4 Contingency Phases 8 3.4.1 Response Phase 8 3.4.2 Resumption Phase 8 3.4.3 Recovery Phase 8 3.4.4 Restoration Phase 9 3.5 Assumptions 9 3.6 Critical Success Factors and Issues 9 3.7 Mission Critical Systems/Applications/Services 10 3.8 Threats 10 3.8.1 Probable Threats 11 4 System Description 12 4.1 Physical Environment 12 4.2 Technical Environment 12 5 Plan 12 5.1 Plan Management 12 5.1.1 Contingency Planning Workgroups 12 5.1.2 Contingency Plan Coordinator 12 5.1.3 System Contingency Coordinators 13 5.1.4 Incident Notification 13 5.1.5 Internal Personnel Notification 13 5.1.6 External Contact Notification 13 5.1.7 Media Releases 14 5.1.8 Alternate Site (s) 14 5.2 Teams 14 5.2.1 Damage Assessment Team 14 5.2.2 Operations Team 15 5.2.3 Communications Team 15 5.2.4 Data Entry and Control Team 15 5.2.5 Off-Site Storage Team 15 5.2.6 Administrative Management Team 15 5.2.7 Procurement Team 15 5.2.8 Configuration Management Team 16 5.2...

Words: 17284 - Pages: 70

Premium Essay

Urban Outfitters

...Contingency Plan Template Appendix I-3 CONTINGENCY PLAN Version Submitted to: Submitted By: Table of Contents 1 Executive Summary 1 2 Introduction 1 2.1 Purpose 3 2.2 Scope 3 2.3 Plan Information 3 3 Contingency Plan Overview 4 3.1 Applicable Provisions and Directives 4 3.2 Objectives 4 3.3 Organization 5 3.4 Contingency Phases 8 3.4.1 Response Phase 8 3.4.2 Resumption Phase 8 3.4.3 Recovery Phase 8 3.4.4 Restoration Phase 9 3.5 Assumptions 9 3.6 Critical Success Factors and Issues 9 3.7 Mission Critical Systems/Applications/Services 10 3.8 Threats 10 3.8.1 Probable Threats 11 4 System Description 12 4.1 Physical Environment 12 4.2 Technical Environment 12 5 Plan 12 5.1 Plan Management 12 5.1.1 Contingency Planning Workgroups 12 5.1.2 Contingency Plan Coordinator 12 5.1.3 System Contingency Coordinators 13 5.1.4 Incident Notification 13 5.1.5 Internal Personnel Notification 13 5.1.6 External Contact Notification 13 5.1.7 Media Releases 14 5.1.8 Alternate Site (s) 14 5.2 Teams 14 5.2.1 Damage Assessment Team 14 5.2.2 Operations Team 15 5.2.3 Communications Team 15 5.2.4 Data Entry and Control Team 15 5.2.5 Off-Site Storage Team 15 5.2.6 Administrative Management Team 15 5.2.7 Procurement Team 15 5.2.8 Configuration Management Team 16 5.2.9 Facilities Team 16 5.2.10 System Software Team 16 ...

Words: 17323 - Pages: 70

Premium Essay

Apple

...Apple Computer, Inc. Company Profile Reference Code: 108 Publication Date: Nov 2006 www.datamonitor.com Datamonitor USA 245 5th Avenue 4th Floor New York, NY 10016 USA t: +1 212 686 7400 f: +1 212 686 2626 e: usinfo@datamonitor.com Datamonitor Europe Charles House 108-110 Finchley Road London NW3 5JJ United Kingdom t: +44 20 7675 7000 f: +44 20 7675 7500 e: eurinfo@datamonitor.com Datamonitor Germany Kastor & Pollux Platz der Einheit 1 60327 Frankfurt Deutschland t: +49 69 9754 4517 f: +49 69 9754 4900 e: deinfo@datamonitor.com Datamonitor Hong Kong 2802-2803 Admiralty Centre Tower 1 18 Harcourt Road Hong Kong t: +852 2520 1177 f: +852 2520 1165 e: hkinfo@datamonitor.com ABOUT DATAMONITOR Datamonitor is a leading business information company specializing in industry analysis. Through its proprietary databases and wealth of expertise, Datamonitor provides clients with unbiased expert analysis and in depth forecasts for six industry sectors: Healthcare, Technology, Automotive, Energy, Consumer Markets, and Financial Services. The company also advises clients on the impact that new technology and eCommerce will have on their businesses. Datamonitor maintains its headquarters in London, and regional offices in New York, Frankfurt, and Hong Kong. The company serves the world's largest 5000 companies. Datamonitor's premium reports are based on primary research with industry panels and consumers. We gather information on market segmentation, market growth and pricing, competitors...

Words: 6864 - Pages: 28

Premium Essay

Zara

...org The Core Competence of the Corporation by C.K. Prahalad and Gary Hamel Included with this full-text Harvard Business Review article: 1 Article Summary The Idea in Brief—the core idea The Idea in Practice—putting the idea to work 2 The Core Competence of the Corporation 15 Further Reading A list of related materials, with annotations to guide further exploration of the article’s ideas and applications Product 6528 The Core Competence of the Corporation The Idea in Brief The Idea in Practice Diversified giant NEC competed in seemingly disparate businesses—semiconductors, telecommunications, computing, and consumer electronics—and dominated them all. CLARIFY CORE COMPETENCIES How? It considered itself not a collection of strategic business units, but a portfolio of core competencies—the company’s collective knowledge about how to coordinate diverse production skills and technologies. COPYRIGHT © 2003 HARVARD BUSINESS SCHOOL PUBLISHING CORPORATION. ALL RIGHTS RESERVED. NEC used its core competencies to achieve what most companies only attempt: Invent new markets, exploit emerging ones, delight customers with products they hadn’t even imagined—but definitely needed. Think of a diversified company as a tree: the trunk and major limbs as core products, smaller branches as business units, leaves and fruit as end products. Nourishing and stabilizing everything is the root system: core competencies. Focusing on core competencies...

Words: 9569 - Pages: 39

Premium Essay

Research

...Composition: PreMediaGlobal Cover Credit: © Masterfile Royalty Free Manufacturing Coordinator: Julio Esperas © 2013 Course Technology, Cengage Learning ALL RIGHTS RESERVED. No part of this work covered by the copyright herein may be reproduced, transmitted, stored or used in any form or by any means—graphic, electronic, or mechanical, including but not limited to photocopying, recording, scanning, digitizing, taping, Web distribution, information networks, or information storage and retrieval systems, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act—without the prior written permission of the publisher. For product information and technology assistance, contact us at Cengage Learning Customer & Sales Support, 1-800-354-9706. For permission to use material from this text or product, submit all requests online at cengage.com/permissions. Further permissions questions can be e-mailed to permissionrequest@cengage.com. Some of the product names and company names used in this book have been used for identification purposes only and may be...

Words: 234459 - Pages: 938

Premium Essay

Asahi Case Study

...STRATEGIC MANAGEMENT TEXAS EXECUTIVE MBA PROGRAM FALL 2011 Professor David B. Jemison CBA 3.232 Telephone 471-8757 David.Jemison@mccombs.utexas.edu Texts: Porter, Michael E. Competitive Strategy. (New York: Free Press, l998). Course Description Perspective and Themes This course is about the creation and maintenance of a long-term vision for the organization. This means that it is concerned with both the determination of strategic direction and the management of the strategic process. As such, it deals with the analytical, behavioral, and creative aspects of business simultaneously. The course is organized around six themes in strategic management: the role of the general manager, the components of business strategy, corporate strategy development, divisional-level strategy development, managing strategic change, and the development of general managers. Our perspective in this course is that of the leader whose responsibility is the long-term health of the entire firm or a major division. The key tasks involved in general management include the detection of and adaptation to environmental change; the procurement and allocation of resources; the integration of activities across subparts of the organizations; and, at the most senior levels, the determination of purpose and the setting of corporate direction. General managers, from our perspective, are managers who are in the position to make strategic decisions for the firm. Note that such...

Words: 11018 - Pages: 45

Premium Essay

Redhat

...imprint of Hungry Minds, Inc. Best-Selling Books G Digital Downloads G e-Books G Answer Networks e-Newsletters G Branded Web Sites G e-Learning New York, NY G Cleveland, OH G Indianapolis, IN Red Hat® Linux® Networking and System Administration Published by Hungry Minds, Inc. 909 Third Avenue New York, NY 10022 www.hungryminds.com Copyright © 2002 Hungry Minds, Inc. All rights reserved. No part of this book, including interior design, cover design, and icons, may be reproduced or transmitted in any form, by any means (electronic, photocopying, recording, or otherwise) without the prior written permission of the publisher. Library of Congress Control Number: 2001093591 ISBN: 0-7645-3632-X Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 1O/RT/QT/QS/IN Distributed in the United States by Hungry Minds, Inc. Distributed by CDG Books Canada Inc. for Canada; by Transworld Publishers Limited in the United Kingdom; by IDG Norge Books for Norway; by IDG Sweden Books for Sweden; by IDG Books Australia Publishing Corporation Pty. Ltd. for Australia and New Zealand; by TransQuest Publishers Pte Ltd. for Singapore, Malaysia, Thailand, Indonesia, and Hong Kong; by Gotop Information Inc. for Taiwan; by ICG Muse, Inc. for Japan; by Intersoft for South Africa; by Eyrolles for France; by International Thomson Publishing for Germany, Austria, and Switzerland; by Distribuidora Cuspide for Argentina; by LR International for Brazil; by Galileo Libros for Chile; by Ediciones ZETA S.C.R. Ltda...

Words: 220815 - Pages: 884

Free Essay

C; Phjk

...Green computing 1 Green computing Green computing, green IT or ICT Sustainability, refers to environmentally sustainable computing or IT. In the article Harnessing Green IT: Principles and Practices, San Murugesan defines the field of green computing as "the study and practice of designing, manufacturing, using, and disposing of computers, servers, and associated subsystems—such as monitors, printers, storage devices, and networking and communications systems — efficiently and effectively with minimal or no impact on the environment."[1] The goals of green computing are similar to green chemistry; reduce the use of hazardous materials, maximize energy efficiency during the product's lifetime, and promote the recyclability or biodegradability of defunct products and factory waste. Many corporate IT department have Green Computing initiatives to reduce the environmental impacts of their IT operations.[2] Research continues into key areas such as making the use of computers as energy-efficient as possible, and designing algorithms and systems for efficiency-related computer technologies. Origins In 1992, the U.S. Environmental Protection Agency launched Energy Star, a voluntary labeling program that is designed to promote and recognize energy-efficiency in monitors, climate control equipment, and other technologies. This resulted in the widespread adoption of sleep mode among consumer electronics. Concurrently, the Swedish organization TCO Development launched the TCO...

Words: 6214 - Pages: 25

Premium Essay

Databasse Management

.........................................................................15 Contents of This Edition.........................................................................................................................17 Guidelines for Using This Book.............................................................................................................19 Acknowledgments ..................................................................................................................................21 About the Authors ..................................................................................................................................22 Part 1: Basic Concepts............................................................................................................................23 Chapter 1: Databases and Database Users..........................................................................................23 1.1 Introduction ..............................................................................................................................24 1.2 An Example ..............................................................................................................................25 1.3 Characteristics of the Database Approach...

Words: 229471 - Pages: 918

Premium Essay

Copyright and Patents

...Business Law The Copyright Act As a part of Intellectual Property Rights (With Relevant Provisions to WTO) INDEX Introduction............................................................................................................................04 Introduction to Intellectual property Rights...........................…............................04 Industrial Property.........................................................................................04 Artistic and Literary Property.....................................................................05 Nature of Intellectual Property Rights........................................................05 Introduction to TRIPS………………………...........................................................06 Berne Convention...........................................................................................08 Introduction to WIPO………………………………………………………..……..09 Introduction to The Copy Right Act………………………………………………10 Meaning of Copyright……………………………………………........................................11 Terminologies of Copyright…………………………….......................................................12 Registration of Copyright………..........................................................................................13 Correction of entries in the Register of Copyrights………………………...…….14 Rectification of Register by Copyright Board……………….................................15 Duration of Copyright………………………......................

Words: 16139 - Pages: 65

Premium Essay

Infrastructure Hardware

...Information Technology Infrastructure P A R T II 4 IT Infrastructure: Hardware and Software 5 Foundations of Business Intelligence: Databases and Information Management 6 Telecommunications, the Internet, and Wireless Technology 7 Securing Information Systems Part II provides the technical foundation for understanding information systems by examining hardware, software, databases, networking technologies, and tools and techniques for security and control. This part answers questions such as these: What technologies and tools do businesses today need to accomplish their work? What do I need to know about these technologies to make sure they enhance the performance of my firm? How are ISBN 1-269-41688-X these technologies likely to change in the future? 107 Essentials of Management Information Systems, Tenth Edition, by Kenneth C. Laudon and Jane P. Laudon. Published by Prentice Hall. Copyright © 2013 by Pearson Education, Inc. IT Infrastructure: Hardware and Software LEARNING OBJECTIVES C H A P T E R 4 STUDENT LEARNING OBJECTIVES After completing this chapter, you will be able to answer the following questions: 1. 2. What are the components of IT infrastructure? What are the major computer hardware, data storage, input, and output technologies used in business? What are the major types of computer software used in business? What are the most important contemporary hardware and software trends? What are the principal issues in...

Words: 21212 - Pages: 85