Flash Storage for Virtualization for Dummies ®, Tegile Special Edition Published by John Wiley & Sons, Inc

Flash Storage for Virtualization Tegile Special Edition by Brian Underdahl These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Flash Storage for Virtualization For Dummies ®, Tegile Special Edition Published by John Wiley & Sons, Inc. 111 River St. Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2013 by John Wiley & Sons, Inc., Hoboken, New Jersey 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 the prior written permission of the Publisher. 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ISBN 978-1-118-79734-1 (pbk); ISBN 978-1-118-79754-9 (ebk) Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Contents Introduction .................................................................. 1 Chapter 1: Understanding the Challenges .............. 3 Understanding the I/O Blender ....................................3 Examining Server Virtualization Challenges ..............5 Looking at Desktop Virtualization Challenges ...........7 Chapter 2: Looking at Flash Storage............................9 Getting to Know Server-Based Flash .........................10 Understanding All-Flash Arrays .................................10 Going to Tiered Arrays ................................................11 Introducing Hybrid Arrays..........................................12 Chapter 3: Taking a Closer Look at Flash Storage for Virtualization ..............................15 Using In-line Data Reduction ......................................15 Applying Unified (NAS/SAN) Protocols .....................17 Improving Performance ..............................................18 Increasing Capacity Efficiency ...................................18 Protecting Data ............................................................19 Chapter 4: Looking at Flash Storage Case Studies ...............................................................21 Using Virtualization to Support Medical Care .........21 Making the Grade in Desktop Virtualization ............23 Chapter 5: Ten Important Facts about Flash Storage .................................................. 25 These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Publisher’s Acknowledgments We’re proud of this book and of the people who worked on it. For details on how to create a custom For Dummies book for your business or organization, contact [email protected] or visit www.wiley.com/go/custompub. For details on licensing the For Dummies brand for products or services, contact BrandedRights&[email protected]. Some of the people who helped bring this book to market include the following: Acquisitions, Editorial, Composition Services and Vertical Websites Senior Project Coordinator: Project Editor: Kristie Rees Carrie A. Burchfield Layout and Graphics: Acquisitions Editor: Carrie A. Cesavice, Kyle Looper Andrea Hornberger Editorial Manager: Rev Mengle Proofreader: Robert Springer Business Development Representative: Karen Hattan Custom Publishing Project Specialist: Michael Sullivan Publishing and Editorial for Technology Dummies Richard Swadley, Vice President and Executive Group Publisher Andy Cummings, Vice President and Publisher Mary Bednarek, Executive Director, Acquisitions Mary C. Corder, Editorial Director Publishing and Editorial for Consumer Dummies Kathleen Nebenhaus, Vice President and Executive Publisher Composition Services Debbie Stailey, Director of Composition Services Business Development Lisa Coleman, Director, New Market and Brand Development These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Introduction rganizations are virtualizing server and desktop Oresources more aggressively than ever, which dramatically changes the performance demands on storage. As more physical server resources are moved to a virtualized environment, the data path into shared storage becomes more unpredictable, driving the demand for agile storage systems even higher. The result of this performance demand is a significant challenge, especially for organizations who haven’t evaluated how flash technologies can alleviate these storage challenges. About This Book Flash Storage for Virtualization For Dummies, Tegile Special Edition, introduces you to the options flash technology offers to meet the increasing demands on storage created by virtualization. This book is about solving your organization’s storage needs without putting up with poorer performance and greatly increased operational costs induced by legacy hard drive–based systems. In these pages, you discover how to get more bang for your buck by applying flash technology to your mod- ernized infrastructure. In this book, you also find solutions from Tegile Systems — all flash arrays and hybrid storage systems that allows you to balance the performance optimiza- tion of solid-state drives and the capacity efficiency of hard disk drives in a single architecture. These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. 2 Icons Used in This Book This book uses the following icons to call your atten- tion to information that you may find helpful in particular ways. The information in paragraphs marked by the Remember icon is important and therefore repeated for emphasis. The Tip icon indicates extra-helpful information. This icon marks places where technical mat- ters, such as file systems and whatnot, are discussed. Sorry, it can’t be helped, but it’s intended to be helpful. Where to Go from Here Hey, it’s your book, so dive in anywhere. No, seriously. You can thumb through the book anywhere you like, skipping around here and there. Or, you can read it straight through from front to back, if you prefer. Either way, you can go back to it at any time you want. These materials are © 2015 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Chapter 1 Understanding the Challenges In This Chapter ▶ Comprehending the I/O Blender ▶ Understanding the server issues ▶ Considering desktops s servers continue to get virtualized and new Adesktop virtualization programs are launched, organizations face many challenges in addressing those needs. Storage is often the biggest bottleneck to performance. Simply adding more and more hard disk drive (HDD) spindles without considering the cost and efficiencies isn’t a sustainable answer for most companies. This chapter takes a look at the challenges you face when you try to balance competing forces that can seem to be incompatible. Understanding the I/O Blender Meeting the challenge of increased demand for storage may sound simple on the surface, but in reality, you need to be aware of

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