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«IBM Real-time Compression in IBM SAN Volume Controller and IBM Storwize V7000 Discover how embedded compression software aids data reduction Learn ...»

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Front cover

IBM Real-time Compression

in IBM SAN Volume Controller

and IBM Storwize V7000

Discover how embedded compression

software aids data reduction

Learn about IBM Random Access

Compression Engine technology

See the compression savings

that can be achieved

Christian Burns

Bosmat Tuv-El

Jorge Quintal

Jon Tate



International Technical Support Organization

IBM Real-time Compression in IBM SAN Volume

Controller and IBM Storwize V7000

March 2015

REDP-4859-01 Note: Before using this information and the product it supports, read the information in “Notices” on page vii.

Second Edition (March 2015) This edition applies to those hardware and software products as detailed in the paper only.

© Copyright International Business Machines Corporation 2012, 2015. All rights reserved.

Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Contents Notices................................................................. vii Trademarks............................................................. viii Preface................................................................. ix Authors.................................................................. ix Now you can become a published author, too!................................... xi Comments welcome........................................................ xi Stay connected to IBM Redbooks............................................. xi Summary of changes..................................................... xiii March 2015, Second Edition................................................ xiii Chapter 1. Overview...................................................... 1

1.1 Current IT cha

–  –  –

This information was developed for products and services offered in the U.S.A.

IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any IBM intellectual property right may be used instead. However, it is the user's responsibility to evaluate and verify the operation of any non-IBM product, program, or service.

IBM may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not grant you any license to these patents. You can send license inquiries, in

writing, to:

IBM Director of Licensing, IBM Corporation, North Castle Drive, Armonk, NY 10504-1785 U.S.A.

The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION



MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.

This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.

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IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.

Any performance data contained herein was determined in a controlled environment. Therefore, the results obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment.

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All of these names are fictitious and any similarity to the names and addresses used by an actual business enterprise is entirely coincidental.


This information contains sample application programs in source language, which illustrate programming techniques on various operating platforms. You may copy, modify, and distribute these sample programs in any form without payment to IBM, for the purposes of developing, using, marketing or distributing application programs conforming to the application programming interface for the operating platform for which the sample programs are written. These examples have not been thoroughly tested under all conditions. IBM, therefore, cannot guarantee or imply reliability, serviceability, or function of these programs.

vii © Copyright IBM Corp. 2012, 2015. All rights reserved.

Trademarks IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. These and other IBM trademarked terms are marked on their first occurrence in this information with the appropriate symbol (® or ™), indicating US registered or common law trademarks owned by IBM at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries. A current list of IBM trademarks is available on the Web at http://www.ibm.com/legal/copytrade.shtml

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The following terms are trademarks of other companies:

Intel, Intel logo, Intel Inside logo, and Intel Centrino logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.

Linux is a trademark of Linus Torvalds in the United States, other countries, or both.

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Other company, product, or service names may be trademarks or service marks of others.

viii IBM Real-time Compression in IBM SAN Volume Controller and IBM Storwize V7000 Preface IBM® Real-time Compression™ software that is embedded in IBM SAN Volume Controller (SVC) and IBM Storwize® V7000 solution addresses all the requirements of primary storage data reduction, including performance, by using a purpose-built technology called real-time compression. This IBM Redpaper™ publication addresses the key requirements for primary storage data reduction and gives real world examples of savings that can be made by using compression.

–  –  –

Authors This paper was produced by a team of specialists from around the world working for the IBM International Technical Support Organization in Tel Aviv, Israel.

–  –  –

x IBM Real-time Compression in IBM SAN Volume Controller and IBM Storwize V7000 Now you can become a published author, too!

Here’s an opportunity to spotlight your skills, grow your career, and become a published author—all at the same time! Join an ITSO residency project and help write a book in your area of expertise, while honing your experience using leading-edge technologies. Your efforts will help to increase product acceptance and customer satisfaction, as you expand your network of technical contacts and relationships. Residencies run from two to six weeks in length, and you can participate either in person or as a remote resident working from your home base.

Find out more about the residency program, browse the residency index, and apply online at:

ibm.com/redbooks/residencies.html Comments welcome Your comments are important to us!

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Stay connected to IBM Redbooks

Find us on Facebook:


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Continued data growth and economic pressures are driving the rapid adoption of data reduction technologies. Although much of the attention around data reduction has focused on backup, many businesses are applying data reduction throughout the entire data lifecycle.

Traditionally, the most common form of data reduction technology has been deduplication.

Generally, deduplication is used with highly redundant data sets found in backup-to-disk, virtual tape, or physical tape library applications. Deduplication provides an acceptable solution for sequential access workloads that are less sensitive to performance. However, deduplication cannot meet the demanding requirements of primary storage for random-access, high transaction volumes, and high throughput.

IBM Real-time Compression Software that is embedded in IBM System Storage SAN Volume Controller (SVC), IBM Storwize V7000, and IBM FlashSystem V840 addresses all the requirements of primary storage data reduction, including performance. It does so by using a purpose-built technology called real-time compression. This publication addresses the key requirements for primary storage data reduction.

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© Copyright IBM Corp. 2012, 2015. All rights reserved.

1.1 Current IT challenges Businesses and organizations around the world are challenged with tough economic conditions. The IT environment, which historically was viewed as an expense, is now viewed as a source of innovation that can drive future revenue. However, ever increasing data storage requirements consume the available resources and disrupt attempts to innovate the IT environment.

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1.2 The solution: IBM Real-time Compression The IBM Real-time Compression solution addresses the challenges that are listed in the previous section because it was designed from the ground up for primary storage.

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