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  • Symantec NetBackupDeduplication Guide

    Release 7.0

    20654102

  • Symantec NetBackup Deduplication GuideThe software described in this book is furnished under a license agreement and may be usedonly in accordance with the terms of the agreement.

    Documentation version 7.0

    PN: 20654102

    Legal NoticeCopyright 2009 Symantec Corporation. All rights reserved.

    Symantec, the Symantec Logo, Veritas, and NetBackup are trademarks or registeredtrademarks of Symantec Corporation or its affiliates in the U.S. and other countries. Othernames may be trademarks of their respective owners.

    The product described in this document is distributed under licenses restricting its use,copying, distribution, and decompilation/reverse engineering. No part of this documentmay be reproduced in any form by any means without prior written authorization ofSymantec Corporation and its licensors, if any.

    THE DOCUMENTATION IS PROVIDED "AS IS" AND ALL EXPRESS OR IMPLIED CONDITIONS,REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OFMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT,ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TOBE LEGALLY INVALID. SYMANTEC CORPORATION SHALL NOT BE LIABLE FOR INCIDENTALOR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING,PERFORMANCE, OR USE OF THIS DOCUMENTATION. THE INFORMATION CONTAINEDIN THIS DOCUMENTATION IS SUBJECT TO CHANGE WITHOUT NOTICE.

    The Licensed Software and Documentation are deemed to be commercial computer softwareas defined in FAR 12.212 and subject to restricted rights as defined in FAR Section 52.227-19"Commercial Computer Software - Restricted Rights" and DFARS 227.7202, "Rights inCommercial Computer Software or Commercial Computer Software Documentation", asapplicable, and any successor regulations. Any use, modification, reproduction release,performance, display or disclosure of the Licensed Software and Documentation by the U.S.Government shall be solely in accordance with the terms of this Agreement.

  • Symantec Corporation350 Ellis StreetMountain View, CA 94043

    http://www.symantec.com

    http://www.symantec.com

  • Technical SupportSymantec Technical Support maintains support centers globally. TechnicalSupports primary role is to respond to specific queries about product featuresand functionality. The Technical Support group also creates content for our onlineKnowledge Base. The Technical Support group works collaboratively with theother functional areas within Symantec to answer your questions in a timelyfashion. For example, the Technical Support group works with Product Engineeringand Symantec Security Response to provide alerting services and virus definitionupdates.

    Symantecs maintenance offerings include the following:

    A range of support options that give you the flexibility to select the rightamount of service for any size organization

    Telephone and Web-based support that provides rapid response andup-to-the-minute information

    Upgrade assurance that delivers automatic software upgrade protection

    Global support that is available 24 hours a day, 7 days a week

    Advanced features, including Account Management Services

    For information about Symantecs Maintenance Programs, you can visit our Website at the following URL:

    www.symantec.com/techsupp/

    Contacting Technical SupportCustomers with a current maintenance agreement may access Technical Supportinformation at the following URL:

    www.symantec.com/techsupp/

    Before contacting Technical Support, make sure you have satisfied the systemrequirements that are listed in your product documentation. Also, you should beat the computer on which the problem occurred, in case it is necessary to replicatethe problem.

    When you contact Technical Support, please have the following informationavailable:

    Product release level

    Hardware information

    Available memory, disk space, and NIC information

    Operating system

    www.symantec.com/techsupp/www.symantec.com/techsupp/

  • Version and patch level

    Network topology

    Router, gateway, and IP address information

    Problem description:

    Error messages and log files

    Troubleshooting that was performed before contacting Symantec

    Recent software configuration changes and network changes

    Licensing and registrationIf your Symantec product requires registration or a license key, access our technicalsupport Web page at the following URL:

    www.symantec.com/techsupp/

    Customer serviceCustomer service information is available at the following URL:

    www.symantec.com/techsupp/

    Customer Service is available to assist with the following types of issues:

    Questions regarding product licensing or serialization

    Product registration updates, such as address or name changes

    General product information (features, language availability, local dealers)

    Latest information about product updates and upgrades

    Information about upgrade assurance and maintenance contracts

    Information about the Symantec Buying Programs

    Advice about Symantec's technical support options

    Nontechnical presales questions

    Issues that are related to CD-ROMs or manuals

    www.symantec.com/techsupp/www.symantec.com/techsupp/

  • Maintenance agreement resourcesIf you want to contact Symantec regarding an existing maintenance agreement,please contact the maintenance agreement administration team for your regionas follows:

    customercare_apac@symantec.comAsia-Pacific and Japan

    semea@symantec.comEurope, Middle-East, and Africa

    supportsolutions@symantec.comNorth America and Latin America

    Additional enterprise servicesSymantec offers a comprehensive set of services that allow you to maximize yourinvestment in Symantec products and to develop your knowledge, expertise, andglobal insight, which enable you to manage your business risks proactively.

    Enterprise services that are available include the following:

    These solutions provide early warning of cyber attacks, comprehensive threatanalysis, and countermeasures to prevent attacks before they occur.

    Symantec Early Warning Solutions

    These services remove the burden of managing and monitoring security devicesand events, ensuring rapid response to real threats.

    Managed Security Services

    Symantec Consulting Services provide on-site technical expertise fromSymantec and its trusted partners. Symantec Consulting Services offer a varietyof prepackaged and customizable options that include assessment, design,implementation, monitoring, and management capabilities. Each is focused onestablishing and maintaining the integrity and availability of your IT resources.

    Consulting Services

    Educational Services provide a full array of technical training, securityeducation, security certification, and awareness communication programs.

    Educational Services

    To access more information about Enterprise services, please visit our Web siteat the following URL:

    www.symantec.com

    Select your country or language from the site index.

    mailto:customercare_apac@symantec.commailto:semea@symantec.commailto:supportsolutions@symantec.comwww.symantec.com

  • Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    Chapter 1 Introducing NetBackup deduplication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11About NetBackup deduplication .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

    About NetBackup deduplication options .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12How deduplication works .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    Chapter 2 Planning your deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Planning your deduplication deployment ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17About the deduplication storage type .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19About the NetBackup Media Server Deduplication Option .... . . . . . . . . . . . . . . . . 19

    About deduplication servers ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21About deduplication nodes .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22About deduplication server requirements ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23About media server deduplication limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . 23

    About NetBackup Client Deduplication .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24About client deduplication host requirements ... . . . . . . . . . . . . . . . . . . . . . . . . . . 25About client deduplication requirements ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25About client deduplication limitations .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

    About NetBackup Deduplication Engine credentials ... . . . . . . . . . . . . . . . . . . . . . . . . 26About the network interface for deduplication .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27About firewalls and the deduplication hosts ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27About scaling deduplication .... . . .

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