HP OpenView Storage Data Protector Concepts Guide Manual Edition: April 2005 Manufacturing Part Number: B6960-90105 Release A.05.50 © Copyright Hewlett-Packard Development Company, L.P.2005. Legal Notices ©Copyright 2004 Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. UNIX® is a registered trademark of The Open Group. Microsoft®, Windows®, and Windows NT® are U.S. registered trademarks of Microsoft Corporation. Oracle® is a registered U.S. trademark of Oracle Corporation, Redwood City, California. Java™ is a U.S. trademark of Sun Microsystems, Inc. ARM® is a registered trademark of ARM Limited. ii Contents 1. About Backup and Data Protector In This Chapter . 2 About Data Protector . 3 Introducing Backups and Restores . 7 What Is a Backup? . 7 What Is a Restore? . 7 Backing Up a Network Environment . 8 Direct Backup . 9 Data Protector Architecture . 10 Operations in the Cell. 12 Backup Sessions . 12 Restore Sessions . 14 Enterprise Environments . 15 Splitting an Environment into Multiple Cells . 16 Media Management . 19 Backup Devices . 20 User Interfaces. 21 Data Protector GUI. 22 Overview of Tasks to Set Up Data Protector . 23 2. Planning Your Backup Strategy In This Chapter . 26 Backup Strategy Planning. 27 Defining the Requirements of a Backup Strategy . 27 Factors Influencing Your Backup Strategy . 29 Preparing a Backup Strategy Plan . 30 Planning Cells . 32 One Cell or Multiple Cells? . 32 Installing and Maintaining Client Systems . 33 Creating Cells in the UNIX Environment. 34 Creating Cells in the Windows Environment . 35 Creating Cells in a Mixed Environment . 36 Geographically Remote Cells . 37 Understanding and Planning Performance . 38 The Infrastructure . 38 Configuring Backups and Restores . 41 Disk Performance . 42 SAN Performance . 43 iii Contents Online Database Application Performance . 43 Planning Security. 45 Cells . 45 Data Protector Users Accounts . 46 Data Protector User Groups. 46 Data Protector User Rights . 47 Visibility of Backed Up Data . 47 Data Encoding. 47 Who Owns a Backup Session? . 48 Clustering . 49 Cluster Concepts. 49 Cluster Support. 52 Example Cluster Environments. 53 Full and Incremental Backups . 63 Full Backups . 63 Incremental Backups . 64 Considering Restore . 66 Backup Types and Scheduling . 68 Keeping Backed Up Data and Information About the Data . 69 Data Protection . 69 Catalog Protection . 70 Logging Level . 70 Browsing Files for Restore . 71 Backing Up Data . 73 Creating a Backup Specification . 74 Selecting Backup Objects . 74 Backup Sessions . 76 Object Mirrors. 76 Media Sets. 76 Backup Types and Scheduled Backups . 76 Scheduling, Backup Configurations, and Sessions . 77 Scheduling Tips and Tricks . ..