Cloud Computing: A Practical Approach Anthony T. Velte Toby J. Velte, Ph.D. Robert Elsenpeter New York Chicago San Francisco Lisbon London Madrid Mexico City Milan New Delhi San Juan Seoul Singapore Sydney Toronto Copyright © 2010 by The McGraw-Hill Companies. All rights reserved. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. ISBN: 978-0-07-162695-8 MHID: 0-07-162695-6 The material in this eBook also appears in the print version of this title: ISBN: 978-0-07-162694-1, MHID: 0-07-162694-8. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. 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For Ava Holder—A girl so small who should not have to be so strong, but she is. —ATV For Dr. Jon Gottesman—A brilliant mind and great mentor who never loses sight of the big picture. —TJV For Bryan Reynolds—a fellow writer and great cousin. —RCE About the Authors Anthony T. Velte, CISSP, CISA, has spent over 20 years in the information systems industry. He is co-founder of Velte Publishing, Inc. and the co-author of more than a dozen books, including the award winning Green IT: Reduce Your Information System’s Environmental Impact While Adding to the Bottom Line and Microsoft Virtualization with Hyper-V. Mr. Velte also works for an industry-leading security software company. He consults with companies large and small, helping them optimize and protect their information systems infrastructures. He can be reached at [email protected]. Toby J. Velte, Ph.D., is an international best-selling author of business technology articles and books. He is co-founder of Velte Publishing, Inc. and the co-author of more than a dozen books, including the award winning Green IT: Reduce Your Information System’s Environmental Impact While Adding to the Bottom Line and Microsoft Virtualization with Hyper-V. Dr. Velte is currently part of Microsoft’s North Central practice focused on helping thriving companies with their technology-based initiatives. He works with large organizations to create IT roadmaps that are business focused and practically implemented. He can be reached at [email protected]. Robert Elsenpeter is an award-winning author and journalist, freelance writer, and author of more than a dozen technology books. He’s co-author of the award-winning book Green IT: Reduce Your Information System’s Environmental Impact While Adding to the Bottom Line. He has a bachelor’s degree in Information Technology. About the Technical Editor Charles Babcock is former technical editor of Computerworld and technology editor at Interactive Week. He is currently an editor-at-large at Information Week in San Francisco. He has spent 25 years covering various technologies and trends in the computer industry, and holds a bachelor’s degree in journalism from Syracuse University. Contents Acknowledgments . xiii Introduction . xiv Part I Getting Started 1 Cloud Computing Basics . 3 Cloud Computing Overview . 3 Disambiguation—Just What Is Cloud Computing? . 3 Cloud Components . 6 Infrastructure . 8 Services . 11 Applications . 16 Storage . 16 Database Services . 17 Intranets and the Cloud . 19 Components . 20 Hypervisor Applications . 20 First Movers in the Cloud . 21 Amazon . 21 Google . 22 Microsoft . 22 2 Your Organization and Cloud Computing . 23 When You Can Use Cloud Computing . 23 Scenarios . 23 When You Shouldn’t Use Cloud Computing . 25 Benefits . 29 Scalability . 30 Simplicity . 30 Knowledgeable Vendors . 30 More Internal Resources . 31 Security . 31 Limitations . 31 Your Sensitive Information . 31 Applications Not Ready . 33 Developing Your Own Applications . 34 v vi Cloud Computing: A Practical Approach Security Concerns . 35 Privacy Concerns with a Third Party . 35 Are They Doing Enough to Secure It? . 36 Security Benefits . 37 Regulatory Issues . 39 No Existing Regulation . 39 Government to the Rescue? . 39 3 Cloud Computing with the Titans . 41 Google . 41 Google App Engine . 42 Google Web Toolkit . 43 EMC . 45 Technologies . 45 VMware Acquisition . 46 NetApp . 46 Offerings . 46 Cisco Partnership . 47 Microsoft . 48 Azure Services Platform . 48 Windows Live . 49 Exchange Online . 51 SharePoint Services . 52 Microsoft Dynamics CRM . 53 Amazon . 54 Amazon Elastic Compute Cloud (Amazon EC2) . 54 Amazon SimpleDB . ..