344 | HP B6960-96035 guide

344	Further information

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HP B6960-96035 manual 344

Contents

HP Data Protector A.06.10 Concepts guide Page Contents Planning your backup strategy Types of incremental backups Media management and devices 133 Users and user groups 183 Service management 205 Data Protector internal database 187 How Data Protector operates 219 Integration with database applications 237 Direct backup 243 Disk backup 253Synthetic backup 257 This chapter 265 Overview Supported configurations 269 Microsoft Volume Shadow Copy service 289 Backup scenarios 297Snapshot concepts 275 Further information 331 Glossary 345 Index 403 Figures 149 Backup session information flow multiple sessions Page Page Tables Page Page Part number Guide edition Product Publication historyEdition history Publication history About this guide Intended audienceDocumentation set Guides HP Data Protector installation and licensing guide HP Data Protector troubleshooting guideHP Data Protector disaster recovery guide HP Data Protector integration guides HP Data Protector zero downtime backup concepts guide HP Data Protector zero downtime backup administrators guideHP Data Protector zero downtime backup integration guide HP Data Protector integration guide for HP Reporter HP Data Protector command line interface reference Online HelpHP Data Protector Media Operations users guide This guide fulfills a similar function for Media Operations Guide Documentation mapAbbreviations Map Abbreviation Guide Integrations Integration Guide Convention Element Document conventions and symbolsDocument conventions Provides helpful hints and shortcuts Data Protector graphical user interfaceProvides additional information General information HP technical support Data Protector graphical user interface Subscription service HP websitesDocumentation feedback For additional information, see the following HP websites About Data Protector About backup and Data ProtectorThis chapter High Availability Support Page This section explains basic backup and restore concepts Introducing backups and restoresWhat is a backup? What is a restore? Backing up a network environment Direct backup Data Protector architecture Data Protector cell physical view and logical view Cell Manager Systems with backup devices Installation ServerOperations in the cell Systems to be backed up How does it work? Backup sessionsWhat is a backup session? Restore sessions What is a restore session? What is an enterprise environment? When to use an enterprise environmentEnterprise environments Splitting an environment into multiple cells Why split large environments into multiple cells? MoM Manager-of-Managers environment Media management functionality What is a media pool?Media management Backup devices User interfaces Data Protector GUIPage Data Protector Java GUI Original Data Protector GUI Data Protector Java GUI architecture Benefits of Java GUI Differences from the Original Data Protector GUI Overview of tasks to set up Data Protector Install and configure your Data Protector environment Planning your backup strategy Disaster recovery onClustering on Restoring data on What is backup strategy planning? Backup strategy planningDefining the requirements of a backup strategy Page Factors influencing your backup strategy Preparing a backup strategy planPage Planning cells One cell or multiple cells?Page Creating cells in the Unix environment Installing and maintaining client systemsInstallation Servers and the Cell Manager Mapping a Data Protector cell into a Windows domain Creating cells in the Windows environmentWindows domains Creating cells in a mixed environment Geographically remote cellsWindows workgroups Considerations for geographically remote cells Network versus local backups Understanding and planning performanceInfrastructure MoM environment Device performance Network or server versus direct backupsDevices Advanced high performance configuration Using hardware in parallelWhen to use parallelism High performance hardware other than devices Hardware compression Configuring backups and restoresSoftware compression Object distribution to media Full and incremental backupsDisk image versus filesystem backups Disk image backups Disk performanceDisk fragmentation Compression What is security? Planning securitySAN performance Online database application performance Cells Data Protector users accounts Data Protector user groups Data Protector user rights Visibility of backed up data Data encryptionHow Data Protector AES 256-bit encryption works Hiding data from other users Backup session with AES 256-bit encryption How Data Protector drive-based encryption works Who owns a backup session? What is backup ownership?Restore from encrypted backups Backup ownership and restore What is a cluster?Clustering Cluster concepts Cluster network Cluster nodesShared disks What is a failover? What is a package or group?What is a virtual server? Automatic restart of backups Cluster supportHigh availability of the Data Protector Cell Manager Load balancing at failover Example cluster environments Cell Manager installed outside a clusterThis section gives three example cluster configurations Cell Manager installed outside a cluster Virtual server backup Result Backup behaviorCondition Virtual server backup Condition Result FC/SCSI MUX Virtual server backup Failover before a backup starts Incremental backup Full and incremental backupsComparison of full and incremental backup Full backups Incremental backupsSynthetic backup Full backup Incremental backup Types of incremental backups Conventional incremental backupEnhanced incremental backup Incr1-9 backup never references an existing Incr backup Level that is still protected. For example, an Incr1 backupBackup saves all changes since the last Incr4 backup. An Incremental backups Relative referencing of backup runs Examples Considering restoreHow to read on TIP Media needed to restore from leveled incremental backups What is data protection? Keeping backed up data and information about the dataData protection Data Protector Internal Database Browsing files for restore What is catalog protection?What is logging level? Catalog protection Overwriting backed up files with new data Enabling the browsing of files and quick restoreEnabling the restore of files, but not browsing Backing up data Exporting media from a cell Creating a backup specification Selecting backup objectsWhat is a backup specification? How to create a backup specification Examples of backup options Backup types and scheduled backups What is an object mirror?What is a media set? Object mirrors Scheduling, backup configurations, and sessions Backup configurationBackup session Optimizing backup performance When to schedule backups Staggering full backupsOptimizing for restore Staggered approach Full backup with daily simple incremental backups Example Full backup with daily level 1 incremental backups Considerations for unattended backups Automated or unattended operationPage Object copy Object mirror Media copy Smart Media Copy Duplicating backed up dataData Protector data duplication methods What is object copy? Copying objects Scheduled object copying Post-backup object copyingStart of object copy session Object copy session performance Selection of devicesSelection of the media set to copy from Freeing media Why use object copy?Vaulting Freeing media Demultiplexing of media Disk staging Consolidating a restore chainMigration to another media type What is object mirroring? Object mirroring Benefits of object mirroring Object mirror operation Backup performance Object mirroring What is media copying? How to copy mediaWhat is the result? Copying media What is automated media copying? Post-backup media copyingAutomated media copying Scheduled media copying Smart media copying using VLS What is smart media copying?What happens after the backup? Automated smart media copying Restoring data Restore durationFactors affecting restore duration Selection of restore chain Selection of the media setSelection of devices Media set selection algorithm What needs to be done Operators are allowed to restoreWhen to use this policy Disaster recovery End users are allowed to restorePage Disaster recovery methods Recovery using third-party tools for Windows Alternative disaster recovery methodsRecovery methods supported by operating system vendors 132 Planning your backup strategy Media management and devices Media management on Media life cycle onMedia pools on Devices on Media life cycle Typical media life cycle consists of the following steps Concepts guide 135 Media poolsSee Calculating media condition on Media pools and dcbf directories How to use media poolsMedia pool property examples Default media pools Free pools Free pool benefits What is a free pool?When is a free pool used? Free pool limitations Free pool propertiesMedia quality calculation Media pool usage examples Simple one device/one media pool relation Configuration of media pools for large libraries Multiple devices, single media pool What is a media rotation policy? Implementing a media rotation policy Media rotation and Data Protector Media needed for rotationAutomatic media rotation and media handling Estimating the quantity of needed media Media management before backups begin What is initializing formatting media?Initializing or formatting media Labeling Data Protector media Location field How are labels used? Media management during backup sessions Selecting media for backups Adding data to media during backup sessions Media conditionMedia usage policy Distributing objects over media Multiple objects and sessions per medium, sequential writes Media condition factors Writing data to several media sets during backupCalculating media condition Vaulting Media management after backup sessionsWhat is vaulting? Implementing vaulting Vaulting usage example Using devices with Data Protector DevicesRestoring from media in a vault Concepts guide 153 Library management console support TapeAlert Device lists and load balancing What is device streaming? How to configure device streamingDevice streaming and concurrency How load balancing works Segment size Disk agent concurrencyIncreased performance Multiple data streams Block size Data format Device names Number of disk agent buffersDevice locking and lock names Standalone devices Physical device collisionPreventing collision What are standalone devices? Small magazine devices Configuring a library Large librariesHandling of media Size of a library Sharing a library with other applications Enter / eject mail slotsBarcode support Advantages of barcodes Sharing a library with multiple systems Cleaning tape supportWhat is library sharing? Connecting drives to multiple systems Control protocols and Data Protector Media Agents Drive control Required Data Protector Media Agent for drive controlDrive control protocol Ndmp Scsi Exemplary configurations Required Data Protector Media Agent for robotic controlADIC/GRAU Scsi Ndmp ACS 168 Media management and devices Sharing a Scsi library robotics attached to an Ndmp Server Data Protector and Storage Area Networks Sharing an ADIC/GRAU or StorageTek ACS library Storage Area Networks Fibre Channel Storage Area Network Point-to-point topology Loop topology Switched topology Loop initialization protocol Concepts guide 175 Configuring multiple paths to physical devicesDevice sharing in SAN Why use multiple paths Path selection Device locking Backward compatibilityDevice locking with multiple applications Device locking within Data Protector Indirect and Direct Library Access Indirect Library Access Direct Library Access Indirect Library Access Device sharing in clusters Static drives Floating drives Concepts guide 181 182 Media management and devices Access to backed up data Users and user groupsIncreased security for Data Protector users Visibility of backed up data Predefined user groups Default administratorsUsers and user groups Using predefined user groups Following default groups are provided by Data ProtectorUser group Access rights Data Protector predefined user groups 186 Users and user groups Data Protector internal database About the IDB IDB on the Windows Cell Manager IDB size and growth considerationIDB location IDB format IDB in the Manager-of-Managers environment IDB architectureIDB on the Unix Cell Manager Mmdb records Media Management Database MmdbUnderlying technology Catalog Database CDB Mmdb size and growthMmdb location CDB records Detail Catalog Binary Files Dcbf Size and growth for CDB objects and positionsCDB location Dcbf information Session Messages Binary Files Smbf Dcbf locationSmbf records Smbf size and growth Serverless Integrations Binary Files Sibf During backupIDB operation Exporting media During restoreDuring object copying or object consolidation IDB configuration Overview of IDB managementRemoving the detail catalog Filenames purge IDB maintenance IDB recoveryIDB growth and performance Key IDB growth and performance factors IDB growth and performance key tunable parameters Logging level as an IDB key tunable parameter Concepts guide 199 Impact on performance Logging level and browsing for restoreLogging level and restore speed Catalog protection and restore Catalog protection as an IDB key tunable parameterRecommended usage of logging level and catalog protection Expired catalog protection Specifics for small cells Use different logging levels in the same cellDifferent logging levels for object copies On the Windows Cell Manager IDB size estimationSpecifics for large cells 204 It is organized as follows Overview on Service managementOverview Data Protector and service management Concepts guide 207 Native Data Protector functionalityKey functions What Is ARM? Application Response Measurement version 2.0 ARM 2.0 API ARM functionality Integration with HP Operations Manager software Snmp trapsMonitor Functionality of the Data Protector OM integration Reporting and notification Event logging and notification Reporting and notification examples Data Protector log files Windows application logJava-based online reporting Data Protector checking and maintenance mechanism Using the data provided by Data ProtectorCentral management, distributed environment What can I do with the data? Data Protector OM-R integration Service management integrationsBackup Session Reports Concepts guide 215 Data Protector Reporter example Operational error status report Data Protector OM SIP Direct SIP integration example Data Protector processes or services How Data Protector operatesSystems, the system inet daemon Inetd starts the Data Protector Inet process Backup sessions CRSMMD RDS Scheduled and interactive backup sessions Backup session data flow and processesScheduled backup session Interactive backup session Backup session information flow How many sessions can run concurrently? Pre-exec and post-exec commands On page 223 shows multiple sessions running concurrently Queuing of backup sessions Mount requests in backup sessions Restore sessions Backing up with disk discovery Restore session data flow and processes What happens in a restore session? Queuing of restore sessions How many restore sessions can run concurrently? Mount requests in a restore session Parallel restoresWhat is a parallel restore? How does it compare to a standard restore? Fast multiple single file restore Object copy sessions Automated and interactive object copy sessions Object copy session data flow and processes How many sessions can run concurrently? Queuing of object copy sessions Mount requests in an object copy session Object consolidation session data flow and processes Object consolidation sessionsAutomated and interactive object consolidation sessions Queuing of object consolidation sessions Media management session data flow Media management sessionsMount requests in an object consolidation session How many sessions can run? Integration with database applications Overview of database operation Relational database Filesystem backup of databases and applications Online backup of databases and applications Data Protector integration with databases Concepts guide 241 242 Direct backup Requirements and support on Supported configurations on Configurations on Backup types How direct backup worksDirect backup benefits Direct backup architecture Environment About resolve About XCopy XCopy + Resolve Direct backup process flowBackup stages for data files Requirements and support RestoreThere are two restore options when using direct backup Supported configurations Three hosts CM, application, Resolve Concepts guide 251 Basic configuration single hostTwo Hosts Cell Manager/Resolve Agent and application 252 Disk backup Disk backup benefits on Data Protector disk-based devices on Disk backup benefits Data Protector disk-based devices Standalone file deviceFile jukebox device File library device Recommended disk-backup device ConfigurationData format Backing up to a disk device Synthetic backup Concepts guide 257 Synthetic backup brings the following benefits Synthetic backup benefitsHow Data Protector synthetic backup works Synthetic backup Restore and synthetic backup Synthetic backup and media space consumption Full and incremental backups Regular synthetic backup Page 264 Split mirror concepts Split mirror backup concept Instant recovery Backup clients and clusters ZDB to tape and ZDB to disk+tapeZDB to disk Replica set rotation Local mirror dual host Concepts guide 269 Local mirror single host Remote mirror Split mirror remote mirror LAN-free remote backup data HA Concepts guide 271 Local/remote mirror combination Other configurations 274 Split mirror concepts Snapshot concepts Storage virtualization Snapshot concepts RAID Snapshot backup Snapshot backup types Instant recovery Replica set and replica set rotationTypes of snapshots Snapshots with the preallocation of disk space Snapshots without the preallocation of disk space Snapclones Basic configuration single disk array dual host Other supported configurations Multiple disk arrays dual host Multiple application hosts single backup host Disk arrays single host LVM mirroring HP StorageWorks Virtual Array only 286 Page 288 Microsoft Volume Shadow Copy service What is a shadow copy provider? What is a shadow copy?What is a writer? Data Protector and VSS Actors of the traditional backup model VSS benefits Data Protector Volume Shadow Copy integrationBenefits of using VSS VSS backup VSS restore VSS filesystem backup and restore Backup and restore Considerations Backup scenariosThis appendix 298 Hardware and software environment of XYZ Company XYZEnvironment Current XYZ backup topology Problems with the current solution Backup strategy requirements Requirements Proposed solution Solution overviewProposed environment Department Current Data Projected Data Devices 5 Years Proposed solution in detail Proposed XYZ backup topology Estimating the size of the IDB Input parameters Page Staggering approach Remote full backups to the HP DLT 4115 library Department Current Data/Backup TimeTime ENG1BS ENG2BS OthbsAdmbs Dbbs Restore options 312 Backup scenarios #UX Size of backup environmentCompany ABC Current ABC Cape Town backup topology Problems with current solution Maximum acceptable downtime for recoveryType of data Maximum downtime Concepts guide 315 How long data should be kept Type of data Max data storage timeAmount of data to be backed up Location Amount of data to be backed up in five years ABC enterprise environment Why configure into seven cells? Why use the CMMDB?ABC cell configuration #UNIX Why choose the Windows system? ABC Cape Town enterprise backup environment 322 Why use the HP StorageWorks DLT 4228w Library? How long does a full backup last? Why use the HP StorageWorks DLT 4115w Library?Why use the HP StorageWorks DAT24 Autoloader? Concepts guide 325 ABC’s Media Pool UsageMedia pool name Location Description Why use differential incr1 backups? Staggering Approach for ABC Cape Town ABC’s backup specification configuration Name Cell Description Backup day TimeSERVERSA...G USERSD...G Backup options Page 330 Further information Backup generationsWhat is a backup generation? Backup generations Examples of automated media copying Configuring backups Example 1 automated media copying of filesystem backupsIncr1 backup Configuring automated media copying Full backup Concepts guide 335 336 Full backup and automated media copying Example 2 automated media copying of Oracle database backups Full database backup and automated media copying Internationalization Localization File name handling Background File name handling during backup File name handling during restoreBrowsing file names Unix incompatibility examplePage 344 AML GlossaryAcsls See library See also online redo logLotus Domino Server specific term Lotus Domino Server Backint See restore chainSee also Virtual Library System VLS and virtual tape See also backup specification, incremental backup, and full Backup Backup types Backup viewBackups/templates. Default view By Group according to the group to which backup Or development. When used for backup purposes, the original Or BCV devices, are dedicated SLDs that are pre-configuredManual and disaster and recovery SAP R/3 specific term An SAP R/3 backup tool that allows Restore files of the following type Saved with BrbackupNon-database files saved with Brbackup You can specify files, tablespaces, complete backups, log CAP CDBSee also Mmdb See also MoM See also backup to IAP Microsoft Exchange Server and Lotus Domino Server specific See also Exchange Replication Service and local continuous Microsoft Exchange Server specific term Cluster continuousReplication Informix Server specific term a Windows CMD script that is HP StorageWorks EVA specific term The user interface that CV EVAVLS Oracle and SAP R/3 specific term An Oracle data file that HP StorageWorks EVA specific term a logical grouping CSMOracle and SAP R/3 specific term a physical file created by See also backup types See also copy setInformix Server specific term An Informix Server physical Dcbf See also XCopy engine See also incremental backupMicrosoft SQL Server specific term a database backup that Veritas Volume Manager specific term The basic unit of data DR OS See also virtual full backupDMZ EMC Symmetrix Specific term See client backup with disk discoverySee Symmetrix Agent Syma Microsoft Exchange Server specific term The Microsoft See also librarySee also importing media See also CA+BC EVA Backup media Volume and each of these copies can have additional twoBi-directional transmission of large data files and can be Allows any server to perform replication activity Flash recovery Run out of media. The media pools must be configured to useFull backup Backup Full ZDB GUI HSM Ldev ReplicaEVA provider SMI-S EVA Microsoft Exchange Server specific term a backup IcdaEMC Symmetrix specific term EMCs Symmetrix Integrated IDB Incremental restore BCV control operations, an incremental restore reassigns aPair. However, the standard devices are updated with Devices are updated with only the data that was written to ZDB to disk+tape See also replica, zero downtime backup ZDB, ZDB to diskSee formatting See also Information Store and Site Replication Service IsqlKMS LBO LISTENER.ORA Microsoft Exchange Server specific term Local continuous Service Oracle and SAP R/3 specific term The format of the login Microsoft SQL Server specific term The name a user uses toLVM See Wake Onlan Microsoft Exchange Server specific term a part MCUCA HP StorageWorks Disk Array XP specific term, and HP See MoM During a restore session, a Media Agent locates data on Robotics control of a libraryMedia allocation Or off-site storage StorageWorks Disk Array XP specific Term See also overwriteSymmetrix and HP StorageWorks Disk Array XP specific Term Mmdb See also CMMDB, CDBMSM HP StorageWorks Disk Array XP specific term Mirror Unit See backup object See also zero downtime backup ZDB and online backup OnconfigSee archived redo log Informix Server specific term An environment variable that Oraclesid See also zero downtime backup ZDB, and offline backupSee also archived redo log See also merging See also pre-exec See also post-exec HP StorageWorks Disk Array XP specific term Standard HPMicrosoft Exchange Server specific term The part HP StorageWorks Disk Array XP specific term The RAID RCU RdbmsRDF1/RDF2 EMC Symmetrix specific term a type of Srdf device group Rman HP StorageWorks Disk Array XP specific term The Remote RSM HP StorageWorks Disk Array XP VSS provider specific termRman Oracle Session See backup session,media management session, and restoreHP StorageWorks Disk Array XP specific term secondary Sibf Microsoft VSS specific term a volume that represents aMicrosoft VSS specific term a collection of shadow copies HP StorageWorks VA and HP StorageWorks EVA Specific term SMBSmbf See also snapshot HP StorageWorks Disk Array XP Specific term EMC Symmetrix specific term The EMC Symmetrix Remote See also ZDB to tape, ZDB to disk+tape, and replicaSrdf Syma See failoverEMC Symmetrix specific term The Data Protector software Any number of incremental backups Checkpoints and the quorum resource recovery log, whichPutting stress on the production servers or the network. a Synthetic full Disaster recovery specific term a system after a computer See ZDB to diskZDB specific term See also source R1 device Oracle and SAP R/3 specific term a network configuration See also Microsoft Volume Shadow Copy Service VSSTNSNAMES.ORA Data Protector specific term Keep track of IDB changes. See lights-out operation Microsoft SQL Server specific term This is a SQL Server See also Command View CV EVASee also source volume and target volume VSS Adic and STK specific term a VOLume SERial number is aSee Microsoft Volume Shadow Copy Service Replica, secondary volume S-VOL, and replica set rotation Configuration Informix Server specific term ON-Bar and Data Protector ZDB Arrays, split mirror restore can also be used See also zero downtime backup ZDB, ZDB to disk, instantRecovery, ZDB to disk+tape, and replica Recovery 402Glossary Index 404 Page Concepts Snapshot backup, 276 split mirror backup Hardware, 68, 70 software CRS 408 Selecting for restore Direct BackupSupported configurations 324 410 Failover, 81, 82 FC-AL 412 Size See IDB Internationalization, 340 IT managementSee also libraries 414 Media pools, 135, 309, 325 default, 136 properties Loose, 147 strictMedia condition, 150 calculating, 150 fair Good 416 RDS Data, 194 location Restores, 125SAN Backup, 43 Sharing libraries, 47, 162, 163, 164 Sibf data Snmp RAID HP, 33 technical support 422