Computer Communications and Networks For other titles published in this series, go to
The Computer Communications and Networks series is a range of textbooks, monographs and handbooks. It sets out to provide students, researchers and non- specialists alike with a sure grounding in current knowledge, together with compre- hensible access to the latest developments in computer communications and networking. Emphasis is placed on clear and explanatory styles that support a tutorial approach, so that even the most complex of topics is presented in a lucid and intelligible manner.
Nick Antonopoulos • Lee Gillam Editors Cloud Computing Principles, Systems and Applications
ISBN 978-1-84996-240-7 e-ISBN 978-1-84996-241-4 DOI 10.1007/978-1-84996-241-4 Springer London Dordrecht New York Heidelberg Library of Congress Control Number: 2010930920 © Springer-Verlag London Limited 2010 Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms of licenses issued by the Copyright Licensing Agency. Enquiries concerning reproduction outside those terms should be sent to the publishers. The use of registered names, trademarks, etc., in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant laws and regulations and therefore free for general use. The publisher makes no representation, express or implied, with regard to the accuracy of the information contained in this book and cannot accept any legal responsibility or liability for any errors or omissions that may be made. Cover design : SPi, Puducherry, India Printed on acid-free paper Springer is part of Springer Science+Business Media () Editors Nick Antonopoulos University of Derby School of Computing and Mathematics Kedleston Road, DE22 1GB Derby UK [email protected] Lee Gillam University of Surrey Department of Computing Guildford, Surrey, GU2 7XH UK [email protected] Series Editor Professor A.J. Sammes, BSc, MPhil, PhD, FBCS, CEng Centre for Forensic Computing Cranfield University DCMT, Shrivenham Swindon SN6 8LA UK
v Foreword Cloud computing is increasingly being used for what was known as ‘on-demand’ and ‘utility computing’. The services provided, the APIs and the applications that can be hosted by these Cloud providers have superseded the use of the Grid, and are increasingly becoming popular with users. There are obviously two sides to the services that are provided by Cloud providers: those that are supplied by commer - cial entities, such as Amazon and Google, and those that are open-source systems, such as Open Cirrus 1 and Eucalyptus.
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