NetBackup83_AdminGuide_SnapshotClient.pdf - Veritas...

Unformatted text preview: Veritas NetBackup™ Snapshot Client Administrator's Guide UNIX, Windows, and Linux Release 8.3 Veritas NetBackup™ Snapshot Client Administrator's Guide Document version: 8.3 Technical Support Technical Support maintains support centers globally. All support services will be delivered in accordance with your support agreement and the then-current enterprise technical support policies. For information about our support offerings and how to contact Technical Support, visit our website: You can manage your Veritas account information at the following URL: If you have questions regarding an existing support agreement, please email the support agreement administration team for your region as follows: Worldwide (except Japan) [email protected] Japan [email protected] Documentation The latest documentation is available on the Veritas website: Documentation feedback Your feedback is important to us. 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No part of this document may be reproduced in any form by any means without prior written authorization of Veritas Technologies LLC and its licensors, if any. THE DOCUMENTATION IS PROVIDED "AS IS" AND ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID. Veritas Technologies LLC SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS DOCUMENTATION. THE INFORMATION CONTAINED IN THIS DOCUMENTATION IS SUBJECT TO CHANGE WITHOUT NOTICE. The Licensed Software and Documentation are deemed to be commercial computer software as 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, et seq. "Commercial Computer Software and Commercial Computer Software Documentation," as applicable, and any successor regulations, whether delivered by Veritas as on premises or hosted services. 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. Veritas Technologies LLC 2625 Augustine Drive Santa Clara, CA 95054 Contents Chapter 1 Introduction .......................................................................... 14 Snapshot Client features at a glance ................................................ Snapshot Client features ................................................................ About snapshots .................................................................... About snapshot methods ......................................................... About snapshot providers ......................................................... About off-host backup support ................................................... About Instant Recovery ........................................................... About FlashBackup policies ...................................................... About snapshot methods for disk arrays ...................................... About block level incremental backup ......................................... About Snapshot Client and NDMP ............................................. About snapshot basics .................................................................. About the copy-on-write snapshot type ....................................... About the mirror snapshot type .................................................. Benefits of copy-on-write versus mirror ............................................. About local backup of a snapshot .................................................... Off-host backup overview ............................................................... About file and volume mapping methods ..................................... Off-host backup methods ............................................................... About alternate client backup .................................................... FlashBackup and alternate client combination example .................. NetBackup media server data mover example (UNIX only) ............. About the NDMP data mover .................................................... Snapshot Client requirements ......................................................... Snapshot Client restrictions ...................................................... Snapshot Client terminology ........................................................... Snapshot Client assistance ............................................................ About open file backups for Windows ............................................... Chapter 2 Installation 14 16 16 16 17 18 19 19 19 20 20 20 21 21 22 23 24 25 26 26 32 33 34 34 35 37 41 42 ........................................................................... 43 Installation prerequisites for Snapshot Client ...................................... 43 Snapshot Client installation notes .................................................... 44 About distributing Client Software in mixed-platform environments ........................................................................................... 45 Contents About creating log directories .......................................................... 45 About the snapshot state file ........................................................... 45 Chapter 3 Policy configuration ........................................................... 47 Notes on Snapshot Client policies .................................................... Configuring a Snapshot Client policy ................................................ Backup Selections tab options when configuring a policy ...................... Off-host backup configuration options .............................................. Automatic snapshot selection .......................................................... Selecting the snapshot method ....................................................... Snapshot methods .................................................................. Configuration parameters for Snapshot Client .............................. Snapshot Resources ............................................................... Configuring backup scripts ............................................................. About using alternate client backup .................................................. Alternate client backup requirements .......................................... Configuring alternate client backup .................................................. Before running the alternate client backup ................................... Example alternate client backup configurations ............................. Policy configuration tips ................................................................. Maximum pathname length ...................................................... Snapshot tips ........................................................................ Multiple data streams .............................................................. About incremental backup of mirror-based snapshots .................... About disabling snapshots ............................................................. Disabling Open File Backups on Windows ................................... Disabling Snapshot Client snapshots .......................................... Chapter 4 FlashBackup configuration 47 48 51 53 55 56 58 61 67 67 68 68 70 70 70 71 72 72 73 73 74 74 75 ............................................. 77 About FlashBackup ....................................................................... FlashBackup restrictions ................................................................ Restores of Windows encrypted files and hard links ....................... Configuring a FlashBackup policy .................................................... Configuring FlashBackup policy for backward compatibility (UNIX only) ........................................................................................... About the cache partition ......................................................... Requirements for the cache partition .......................................... Directives for multiple data streams ............................................ 77 78 79 79 83 85 86 86 5 Contents Chapter 5 Instant Recovery configuration ...................................... 89 About Instant Recovery capabilities .................................................. 89 Instant Recovery requirements ........................................................ 90 Instant Recovery restrictions ........................................................... 90 Giving full server privileges to the media server .................................. 92 About Instant Recovery ................................................................. 93 About snapshot and backup for Instant Recovery .......................... 94 About NetBackup catalog maintenance ....................................... 94 About snapshot management ................................................... 95 Means of controlling snapshots ................................................. 96 Configuring a policy for Instant Recovery ........................................... 98 About sizing the cache for Instant Recovery copy-on-write snapshots .......................................................................................... 100 Cache size during restore ....................................................... 101 Setting an adequate size for the snapshot cache ......................... 101 Large restores from an Instant Recovery snapshot ...................... 102 About configuring VxVM ............................................................... 102 Creating a snapshot mirror ..................................................... 103 About creating Instant Snapshots ............................................. 104 Using the VxVM 3.5 GUI to configure VxVM mirrors ..................... 106 Modifying the VxVM or FlashSnap resync options for point in time rollback .............................................................................. 107 Instant Recovery for databases ..................................................... 107 About storage lifecycle policies for snapshots ................................... 108 Configuring a storage lifecycle policy to manage snapshot-based backups for Instant Recovery ........................................... 108 Storage lifecycle polices and Snapshot Client troubleshooting .................................................................................... 110 Chapter 6 Network Attached Storage (NAS) snapshot configuration ................................................................ 113 About NAS snapshot overview ...................................................... Notes on NAS_Snapshot .............................................................. Logging on to the NetBackup Client Service as the Administrator ......... Setting up a policy for NAS snapshots ............................................. NAS snapshot naming scheme ...................................................... Dynamic data streaming for NAS workloads ..................................... Understanding the features ..................................................... Example of dynamic data streaming with backup host pool ............ Configuring dynamic data streaming with backup host pool ................. Configuring a backup host pool ..................................................... Setting up a NAS-Data-Protection policy .......................................... 113 114 116 116 118 118 118 119 120 121 122 6 Contents Chapter 7 Configuration of software-based snapshot methods ........................................................................ 126 Software-based snapshot methods ................................................ About nbu_snap ................................................................... Cache device requirements .................................................... About VxFS_Checkpoint ........................................................ About VxFS_Snapshot ........................................................... About VxVM ........................................................................ About FlashSnap .................................................................. About VVR .......................................................................... About NAS_Snapshot ............................................................ About VSS .......................................................................... Chapter 8 Support for Cluster Volume Manager Environments (CVM) ................................................ 144 About support for CVM environments .............................................. Note on NetBackup and CVM ........................................................ About enabling VxVM or FlashSnap snapshots in a CVM environment .......................................................................................... About enabling the NetBackup client to execute VxVM commands on the CVM master node ............................................................ Chapter 9 126 126 127 131 133 133 136 139 141 141 144 145 145 146 Configuration of snapshot methods for disk arrays .......................................................................................... 147 About the new disk array snapshot methods ..................................... About array-specific methods vs array-independent methods .................................................................................... Advantages of the new array-specific methods ........................... About types of disk array methods ............................................ Important disk array method notes and restrictions ...................... Disk array methods at a glance ................................................ Disk array configuration tasks ........................................................ Configuration tasks for the array administrator ............................ Configuration tasks for the NetBackup administrator .................... Disk array configuration tasks diagram ...................................... OS-specific configuration tasks ...................................................... About dynamic multi-pathing ................................................... HBA configuration ................................................................. About Solaris sd.conf file ........................................................ Linux modprobe.conf file ........................................................ 147 148 149 149 150 151 153 153 154 155 156 156 156 157 158 7 Contents Verifying NetBackup client access, zoning, and LUN masking .................................................................................... About VSS configuration (Windows) ............................................... Note on NetBackup array credentials ........................................ Initial configuration of certain arrays .......................................... About EMC CLARiiON arrays ........................................................ EMC CLARiiON software requirements for UNIX ......................... Veritas support for VSS Snapshot and EMC CLARiiON ................ Diagram of installed software for EMC CLARiiON ........................ Verifying connectivity from client to array ................................... About resolving host names on the network ............................... Configuring NetBackup to access the CLARiiON array ................. Adding clients to a CLARiiON storage group .............................. Configuring for EMC_CLARiiON_SnapView_Clone ...................... Creating a clone private LUN with the EMC Navisphere Web interface ....................................................................... Creating a clone group and select a LUN as source ..................... Adding clone LUNs to the clone group ...................................... Obtaining the device identifier for each source and clone LUN .................................................................................... About configuration for EMC_CLARiiON_SnapView_Snapshot .................................................................................... Configuring a reserved LUN pool for the storage processors .......... Configuring a NetBackup policy for a CLARiiON array method .................................................................................... Common CLARiiON array configuration problems ....................... About EMC Symmetrix arrays ....................................................... EMC Symmetrix DMX software requirements ............................. Clone emulation flag can cause snapshots to fail ......................... EMC snapshot operation fails ................................................. Support for EMC Symmetrix with Volume Shadow Copy Service .................................................................................... Prerequisites for using EMC Symmetrix disk arrays ..................... Configuring NetBackup clients to use EMC Symmetrix ................. About configuring NetBackup to access the Symmetrix array ......... About configuration for EMC_TimeFinder_Mirror ......................... About configuration for EMC_TimeFinder_Clone ......................... About configuration for EMC_TimeFinder_Snap .......................... Configuring a policy for EMC_TimeFinder methods ...................... About HP EVA arrays .................................................................. Prerequisites for working with HP EVA arrays ............................. HP EVA software requirements for UNIX ................................... Diagram of installed software for HP EVA .................................. 158 160 160 160 164 165 165 165 167 168 168 169 170 171 171 172 174 175 176 177 178 178 179 179 179 180 180 180 182 182 183 184 184 186 186 186 187 8 Contents Veritas support for VSS Snapshot and HP EVA ....
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