Data Protection for Microsoft SQL Server Installation and User's Guide

Transcription

1 IBM Tioli Storage Manager for Databases Version 6.4 Data Protection for Microsoft SQL Serer Installation and User's Guide GC

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3 IBM Tioli Storage Manager for Databases Version 6.4 Data Protection for Microsoft SQL Serer Installation and User's Guide GC

4 Note Before using this information and the product it supports, read the information in Notices on page 275. This edition applies to Version 6.4 of IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer (product number 5608-E04) and to all subsequent releases and modifications until otherwise indicated in new editions or technical newsletters. This edition replaces GC Changes since the preious edition are marked with a ertical bar () in the left margin. Ensure that you are using the correct edition for the leel of the product. Copyright IBM Corporation 1997, US Goernment Users Restricted Rights Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

5 Contents Tables ii About this publication ix Who should read this guide ix Publications x Tioli Storage Manager publications..... x Tioli Storage FlashCopy Manager publications xii Conentions used in this book xiii Reading syntax diagrams xiii New for Version xii Management class Copy group Storage pool Data Protection for SQL node name: recommended settings Proxy node definitions (VSS Backups) Required node names for basic VSS operations 37 Required node names for basic VSS offloaded backups Specifying Data Protection for SQL options Specifying Data Protection for SQL preferences.. 42 Setting automatic expiration (VSS and Legacy).. 42 Chapter 1. Data Protection for SQL Oeriew Backup oeriew Legacy backup oeriew VSS Backup Restore methods Legacy restore oeriew VSS Restore VSS Fast Restore VSS Instant Restore SAN Volume Controller and Storwize V7000 FlashCopy support Microsoft SQL Serer 2012 protection AlwaysOn Aailability Groups Deployment of Data Protection for SQL on Windows Serer Core Chapter 2. Planning for Data Protection for Microsoft SQL Serer operations.. 19 How Tioli Storage Manager serer policy affects Data Protection for SQL Security requirements Backup strategies Using VSS and Legacy Backups together Using VSS operations in a SQL Serer Failoer Cluster enironment Considerations for using Data Protection for SQL in a Windows Failoer Cluster enironment.. 27 Using Data Protection for SQL in a Windows Failoer Cluster enironment Using Data Protection for SQL in a Veritas Cluster Serer enironment Back up to Tioli Storage Manager storage ersus back up to local shadow olumes VSS operations in DS, SAN Volume Controller, and Storwize V7000 enironments VSS operations in IBM N-series and NetApp enironments Recommended Tioli Storage Manager policy settings Domain Policy sets Chapter 3. Installing and upgrading Data Protection for SQL Quick installation and configuration Installation prerequisites Minimum hardware requirements Minimum software and operating system requirements Installing Data Protection for SQL on a local system 51 Installing Data Protection for SQL on Windows Serer Core Installing Tioli Storage FlashCopy Manager Installing Data Protection for SQL in a cluster enironment Installing and actiating the language packs Installing additional language packs Actiating the language packs Installing Data Protection for SQL silently Installing Tioli Storage Manager client silently 56 Silent installation with the setup program Silent installation with MSI (msiexec.exe) Installation problems: Capturing a log of the installation Creating the package on a DVD or a file serer 62 Playing back the silent installation Setup error messages Upgrading Chapter 4. Configuring Data Protection for Microsoft SQL Serer Configuring Data Protection for SQL Manually configuring Data Protection for SQL Perform these tasks on the computer running the SQL Serer Perform these tasks on the Tioli Storage Manager serer Perform these tasks on the machine running the offloaded backups Perform these tasks to erify your configuration Transitioning standard SQL databases to the AlwaysOn node Copyright IBM Corp. 1997, 2012 iii

6 Configuring where scheduled backups are run on aailability replicas Configuring Data Protection for SQL on Windows Serer Core Creating a node on the Tioli Storage Manager serer Setting up a proxy node for offloaded VSS backups in the Windows Serer Core enironment Configuring the client in the Windows Serer Core enironment Configuring Data Protection for SQL for Windows Serer Core Chapter 5. Protecting Microsoft SQL Serer data Setting user preferences Data Protection Properties Managing a policy Policy binding statements How backups expire based on policy Binding backups to a policy Determining managed storage capacity Using the Task Manager pane Mounting VSS snapshots to remote serers Backing up SQL databases and files Security Backup types Backing up SQL databases by using VSS Backing up SQL databases by using the Legacy method Backing up SQL groups or files by using the Legacy method Restoring SQL databases and files VSS Restore considerations Restoring SQL serer data Restoring SQL file groups and files from Legacy backups Restoring a SQL database to an alternate machine Restoring the master database Restore options Inactiating SQL databases (Legacy only) Inactiate tree and list Deleting SQL Serer Backups Using the Tioli Storage Manager scheduler Example scheduler procedure in a Microsoft Failoer Cluster enironment on Windows Scheduler guidelines Setting user mode Automating tasks Additional automation methods Viewing reports Protecting SQL Serer data in the Windows Serer Core enironment Backing up SQL Serer databases on Windows Serer Core Restoring SQL databases on Windows Serer Core Changing Data Protection for SQL configuration alues on Windows Serer Core i Getting help for Data Protection for SQL commands on Windows Serer Core Chapter 6. Troubleshooting Data Protection for SQL with VSS backup-restore support Problem determination assistance Resoling errors during Data Protection for SQL processing Determining if the problem is a Tioli Storage Manager or SQL issue Determining if the problem is a Data Protection for SQL issue or a general VSS issue Tracing the Data Protection client when using SQL VSS technology Gathering SQL with VSS information before calling IBM Gathering files from SQL with VSS before calling IBM Troubleshooting Data Protection for SQL VSS and SAN Volume Controller, Storwize V7000, or DS Installation Problems: Creating an installation-log file ing support files Online IBM support Viewing system information Viewing trace and log files Chapter 7. Performance Chapter 8. Data Protection for Microsoft SQL Serer reference Command oeriew Command-line parameter characteristics Backup command Backup syntax Backup positional parameters Backup optional parameters Legacy Backup examples VSS Backup examples Query command Query syntax Query positional parameters Query optional parameters Query output examples Query Managedcapacity command Restore command VSS Restore command-line considerations Restore syntax Restore positional parameters Restore optional parameters Legacy Restore output examples VSS Restore output examples Restorefiles command Restorefiles syntax Restorefiles positional parameters Restorefiles optional parameters Restorefiles examples Mount Backup command IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

7 Mount Backup syntax Unmount Backup positional parameter Mount Backup optional parameters Unmount Backup command Unmount Backup syntax Unmount Backup positional parameter Unmount Backup optional parameters Delete Backup command Delete Backup syntax Delete Backup positional parameters Delete Backup optional parameters Delete Backup example Inactiate command (Legacy only) Inactiate syntax Inactiate positional parameters Inactiate optional parameters Inactiate output examples Help command Help syntax Help positional parameters Help output examples Set command Set syntax Set positional parameters Set optional parameters Set output examples Changetsmpassword command Changetsmpassword Changetsmpassword positional parameters Changetsmpassword optional parameters Changetsmpassword output examples Query Policy command Examples of Tioli Storage Manager policy binding using include/exclude and VSSPOLICY statements. 253 Transitioning SQL Serer backups from Tioli Storage FlashCopy Manager to Tioli Storage Manager Using the Tioli Storage Manager serer wizard 257 Implement these tasks on the Tioli Storage Manager serer Implement these tasks on the workstation running the SQL Serer Appendix A. Frequently asked questions Appendix B. Support information Getting technical training Searching knowledge bases Searching the Internet Using IBM Support Assistant Finding product fixes Receiing notification of product fixes Contacting IBM Software Support Setting up a subscription and support contract 270 Determining the business impact Describing the problem and gathering background information Submitting the problem to IBM Software Support Appendix C. Accessibility features for Data Protection for SQL Notices Trademarks Glossary Index Contents

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9 Tables 1. Serer publications x 2. Storage agent publications xi 3. Backup-archie client publications..... xi 4. Data protection publications xi 5. Troubleshooting and performance tuning publications xii 6. Tioli Storage FlashCopy Manager publications xii 7. Snapshot restore and delete behaior on SAN Volume Controller and Storwize V7000 space-efficient target olumes Backup strategy characteristics Required node names for basic VSS operations Required node names for basic VSS offloaded backups Silent installation options Silent installation features (base client only) Silent installation features (Language Packages only) Silent installation transforms Commands for creating a silent installation package Aailable property pages for SQL Serer workloads Diagnostics modes and their usage Data Protection for SQL commands Data Protection for SQL optional parameters 139 Copyright IBM Corp. 1997, 2012 ii

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11 About this publication Who should read this guide The subject of this publication is Data Protection for Microsoft SQL Serer, a component of the IBM Tioli Storage Manager for Databases product. Data Protection for Microsoft SQL Serer is also known as Data Protection for SQL. This book explains how to install, configure, and administer the Data Protection for SQL component. You can use the Data Protection for SQL software to perform online backups of Microsoft SQL Serer databases to Tioli Storage Manager storage. Tioli Storage Manager is a client-serer licensed product that proides storage management serices in a multi-platform computer enironment. This publication is intended for system users, Tioli Storage Manager administrators, and system administrators. In this book, it is assumed that you hae an understanding of the following applications: Microsoft SQL Serer Tioli Storage Manager serer Tioli Storage Manager backup-archie client Tioli Storage Manager Application Programming Interface It is also assumed that you hae an understanding of one of the following operating systems: Windows Serer 2008 Windows Serer 2008 R2 Windows Serer 2012 It is also assumed that you hae an understanding of the following IBM storage system used for the database: IBM System Storage Disk Storage Models DS3000, DS4000, DS5000 IBM System Storage SAN Volume Controller (SVC) IBM Storwize V7000 Disk System IBM XIV Storage System Model 2810 (Gen2) IBM System Storage DS8000 (DS8100, DS8300, or DS8700) Any storage deice that implements the VSS proider interface as defined in the VSS system proider oeriew section of this document Copyright IBM Corp. 1997, 2012 ix

12 Publications Publications for the IBM Tioli Storage Manager family of products are aailable online. The Tioli Storage Manager product family includes IBM Tioli Storage FlashCopy Manager, IBM Tioli Storage Manager for Space Management, IBM Tioli Storage Manager for Databases, and seeral other storage management products from IBM Tioli. To search all publications, go to the Tioli Storage Manager information center at You can download PDF ersions of publications from the Tioli Storage Manager information center or from the IBM Publications Center at shop/publications/order/. Go to Tioli Documentation Central to find information centers that contain official product documentation for current and preious ersions of Tioli products, including the Tioli Storage Manager product family. You can find Tioli Documentation Central at tiolidoccentral/home. You can also order some related publications from the IBM Publications Center website at The website proides information about ordering publications from countries other than the United States. In the United States, you can order publications by calling Tioli Storage Manager publications The following tables list the publications that are included in the Tioli Storage Manager library. Table 1. Serer publications Publication title IBM Tioli Storage Manager for AIX Installation Guide IBM Tioli Storage Manager for AIX Administrator's Guide IBM Tioli Storage Manager for AIX Administrator's Reference IBM Tioli Storage Manager for HP-UX Installation Guide IBM Tioli Storage Manager for HP-UX Administrator's Guide IBM Tioli Storage Manager for HP-UX Administrator's Reference IBM Tioli Storage Manager for Linux Installation Guide IBM Tioli Storage Manager for Linux Administrator's Guide IBM Tioli Storage Manager for Linux Administrator's Reference IBM Tioli Storage Manager for Oracle Solaris Installation Guide IBM Tioli Storage Manager for Oracle Solaris Administrator's Guide IBM Tioli Storage Manager for Oracle Solaris Administrator's Reference IBM Tioli Storage Manager for Windows Installation Guide IBM Tioli Storage Manager for Windows Administrator's Guide IBM Tioli Storage Manager for Windows Administrator's Reference IBM Tioli Storage Manager for z/os Media Installation and User's Guide Order number GC SC SC GC SC SC GC SC SC GC SC SC GC SC SC SC x IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

13 Table 1. Serer publications (continued) Publication title IBM Tioli Storage Manager Upgrade and Migration Guide for V5 Serers IBM Tioli Storage Manager Integration Guide for Tioli Storage Manager FastBack Order number GC SC Table 2. Storage agent publications Publication title IBM Tioli Storage Manager for SAN for AIX Storage Agent User's Guide IBM Tioli Storage Manager for SAN for HP-UX Storage Agent User's Guide IBM Tioli Storage Manager for SAN for Linux Storage Agent User's Guide IBM Tioli Storage Manager for SAN for Oracle Solaris Storage Agent User's Guide IBM Tioli Storage Manager for SAN for Windows Storage Agent User's Guide Order number SC SC SC SC SC Table 3. Backup-archie client publications Publication title IBM Tioli Storage Manager for UNIX and Linux: Backup-Archie Clients Installation and User's Guide IBM Tioli Storage Manager for Windows: Backup-Archie Clients Installation and User's Guide IBM Tioli Storage Manager Using the Application Programming Interface IBM Tioli Storage Manager for Space Management for UNIX and Linux: User s Guide IBM Tioli Storage Manager HSM for Windows Administration Guide Order number SC SC SC SC SC Table 4. Data protection publications Publication title IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User s Guide IBM Tioli Storage Manager for Databases: Data Protection for Oracle for UNIX and Linux Installation and User s Guide IBM Tioli Storage Manager for Databases: Data Protection for Oracle for Windows Installation and User s Guide IBM Tioli Storage Manager for Mail: Data Protection for Microsoft Exchange Serer Installation and User s Guide IBM Tioli Storage Manager for Mail: Data Protection for Lotus Domino UNIX and Linux Installation and User s Guide IBM Tioli Storage Manager for Mail: Data Protection for Lotus Domino for Windows Installation and User s Guide IBM Tioli Storage Manager for Enterprise Resource Planning: Data Protection for SAP Installation and User s Guide for DB2 Order number GC SC SC GC SC SC SC About this publication xi

14 Table 4. Data protection publications (continued) Publication title IBM Tioli Storage Manager for Enterprise Resource Planning: Data Protection for SAP Installation and User s Guide for Oracle IBM Tioli Storage Manager for Virtual Enironments Installation and User s Guide Order number SC SC Table 5. Troubleshooting and performance tuning publications Publication title IBM Tioli Storage Manager Problem Determination Guide IBM Tioli Storage Manager Performance Tuning Guide IBM Tioli Storage Manager Client Messages and Application Programming Interface Return Codes IBM Tioli Storage Manager Serer Messages and Error Codes IBM Tioli Storage Manager for Mail: Data Protection for Microsoft Exchange Serer Messages IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Messages IBM Tioli Storage Manager for Databases: Data Protection for Oracle Messages IBM Tioli Storage Manager for Mail: Data Protection for Lotus Domino Messages IBM Tioli Storage Manager for Enterprise Resource Planning: Data Protection for SAP Messages Order number GC GC SC SC GC GC SC SC SC Note: IBM System Storage Archie Manager is not releasing a new product. You can find information about IBM System Storage Archie Manager at the Tioli Storage Manager V6.3 information center ( tsminfo/6r3/topic/com.ibm.itsm.na.doc/c_complydataretention_or.html). Tioli Storage FlashCopy Manager publications The following table lists the publications that make up the Tioli Storage FlashCopy Manager library. Table 6. Tioli Storage FlashCopy Manager publications Publication title IBM Tioli Storage FlashCopy Manager for UNIX and Linux Installation and User s Guide IBM Tioli Storage FlashCopy Manager for Windows Installation and User s Guide IBM Tioli Storage FlashCopy Manager for VMware Installation and User s Guide IBM Tioli Storage FlashCopy Manager Messages Order number SC SC SC GC xii IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

15 Conentions used in this book This guide uses seeral conentions for special terms and actions, operating system-dependent commands and paths. This guide uses the following typeface conentions: Bold Commands, keywords, authorization roles, or other information that you must use. Example: Log on to the serer as root user. italics Reading syntax diagrams Values or ariables that you must proide. Emphasized words and phrases. Example: The node name of the production node and backup node must not be the same. bold italics Options and parameters. Example: Specify the alue for the compression option. monospace Directories, parameters, URLs, and output examples. Example: The product is installed in the C:\program files\tioli\tsm\client\ba directory. UPPER CASE Enironment ariables associated with Tioli Storage Manager, operating systems, or SQL Serer. Example: Make sure the DSM_DIR enironment ariable is set correctly. This section describes how to read the syntax diagrams used in this book. To read a syntax diagram, follow the path of the line. Read from left to right, and top to bottom. The symbol indicates the beginning of a syntax diagram. The symbol at the end of a line indicates the syntax diagram continues on the next line. The symbol at the beginning of a line indicates a syntax diagram continues from the preious line. The symbol indicates the end of a syntax diagram. Syntax items, such as a keyword or ariable, can be: On the line (required element) Aboe the line (default element) Below the line (optional element) About this publication xiii

16 Syntax Diagram Description Abbreiations: Uppercase letters denote the shortest acceptable truncation. If an item appears entirely in uppercase letters, it cannot be truncated. Example KEYWOrd You can type the item in any combination of uppercase or lowercase letters. In this example, you can enter KEYWO, KEYWORD, or KEYWOrd. Symbols: Enter these symbols exactly as they appear in the syntax diagram. Variables: Italicized lowercase items (ar_name) denote ariables. In this example, you can specify a ar_name when you enter the KEYWORD command. Repetition: An arrow returning to the left means you can repeat the item. A character or space within the arrow means you must separate repeated items with that character or space. A footnote by the arrow references the number of times you can repeat the item. * Asterisk {} Braces : Colon, Comma = Equal Sign - Hyphen () Parentheses. Period Space KEYWOrd ar_name repeat, repeat (1) repeat Notes: 1 Specify repeat as many as 5 times. Required Choices: When two or more items are in a stack and one of them is on the line, you must specify one item. A B C In this example, you must choose A, B, or C. xi IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

17 Syntax Diagram Description Optional Choice: When an item is below the line, that item is optional. In the first example, you can choose A or nothing at all. When two or more items are in a stack below the line, all of them are optional. In the second example, you can choose A, B, C, or nothing at all. Defaults: Defaults are aboe the line. The default is selected unless you oerride it. You can oerride the default by including an option from the stack below the line. Example A A B C A B C In this example, A is the default. You can oerride A by choosing B or C. You can also specify the default explicitly. Repeatable Choices: A stack of items followed by an arrow returning to the left means you can select more than one item or, in some cases, repeat a single item. A B C In this example, you can choose any combination of A, B, or C. Syntax Fragments: Some diagrams, because of their length, must fragment the syntax. The fragment name appears between ertical bars in the diagram. The expanded fragment appears between ertical bars in the diagram after a heading with the same fragment name. The fragment name The fragment name: A B C About this publication x

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19 New for Version 6.4 Data Protection for SQL Version 6.4 contains the following feature. Microsoft SQL Serer 2012 protection on page 16 You can use Data Protection for SQL to back up and restore Microsoft SQL Serer 2012 data. With this update, you can complete the following tasks: Back up and restore AlwaysOn Aailability Databases to proide high aailability and disaster recoery at the SQL serer database leel, including: Display of AlwaysOn Aailability Group databases with aailability group information in the graphical-user interface and command-line interface Back up and restore any SQL Serer database in an AlwaysOn Aailability Group Management and expiration of an aailability database backup from different replicas in a common Tioli Storage Manager filespace to maintain a single chain of backups (applicable when you are working with a Tioli Storage Manager serer) Configure which replica backs up an aailability database during a scheduled backup Create copy-only full backups on primary and secondary database replicas Back up and restore any SQL Serer database by using any node in an AlwaysOn Failoer Cluster instance to proide high aailability and disaster recoery at the SQL serer instance leel Copyright IBM Corp. 1997, 2012 xii

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21 Chapter 1. Data Protection for SQL Oeriew Backup oeriew Product oeriew information related to new features, backup methods, backup types, restore methods, restore types, performance, security, and aailable documentation is proided for Data Protection for SQL. Data Protection for SQL proides seeral methods of backing up SQL Serer data. Legacy backup oeriew A Legacy backup creates a copy of all or part of a SQL database or logs on Tioli Storage Manager storage media. Data Protection for SQL proides selection mechanisms and the logic that are required to back up and restore SQL data. When you initiate a Legacy backup operation, Data Protection for SQL completes the following actions: 1. Begins a session with a Tioli Storage Manager serer using the Tioli Storage Manager API and information contained in a client options file. 2. Starts a session with the SQL Serer using the SQL-SMO interface. 3. Instructs the SQL Serer using the SQL VDI interface to begin a backup of the selected database objects. 4. Receies data from the SQL Serer and sends it to the Tioli Storage Manager serer. 5. Informs the SQL Serer that the backup is complete. 6. Ends the Tioli Storage Manager serer and SQL Serer sessions. Note: Depending on the instructions that are proided, Data Protection for SQL software can either compress or instruct the SQL Serer to compress the SQL data before sending it to the Tioli Storage Manager serer. When a backup is performed, Tioli Storage Manager serer retains information about the SQL Serer and database. This information is aailable for query and restore operations after the backup is completed. The information about the names and sizes of the database file groups and files is stored along with the database data, as a sub-object. This sub-object is referred to as metadata. VSS Backup A VSS Backup uses Microsoft Volume Shadow Copy Serice technology to produce an online snapshot (point-in-time consistent copy) of SQL data. A VSS Backup means that the SQL Serer is not in backup mode for an extended period of time. The length of time to perform the snapshot is usually measured in seconds, not hours. In addition, a VSS Backup allows a snapshot of large amounts of data at one time because the snapshot works at the olume leel. VSS Backups can be stored on Tioli Storage Manager serer storage or local VSS shadow olumes. Both of these storage destinations require that sufficient space be aailable for the snapshot. VSS Backups stored locally on VSS shadow olumes are directly accessible by the SQL system (as long as sufficient space is aailable for the snapshot). Copyright IBM Corp. 1997,

22 These types of local VSS Backups are faster for a couple of reasons: They are faster because the way the snapshots are managed and because the data is not placed into Tioli Storage Manager serer storage. Restoring these backups is also fast because the SQL data is not transferred from Tioli Storage Manager serer storage oer the network. For local VSS Backups you must hae a licensed ersion of IBM Tioli Storage FlashCopy Manager or IBM Tioli Storage Manager for Copy Serices installed on your system. When performing VSS Backups and moing data to Tioli Storage Manager serer storage, sufficient space on local snapshot olumes is still temporarily required to hold the snapshot. For SQL data backed up to Tioli Storage Manager serer storage, the SQL data on the snapshot olume is sent to the Tioli Storage Manager serer. After the data transfer to the serer is complete, the snapshot olume is made aailable for reuse. If you are storing VSS Backups locally and the maximum number of local backup ersions to be maintained (as specified by the Tioli Storage Manager policy) is reached, the oldest backup ersion is expired to create the snapshot for the backup to Tioli Storage Manager serer storage. For SQL data backed up to local VSS shadow olumes, the snapshot backup resides on the shadow copy olume. For SQL data backed up to both destinations, a local snapshot backup is performed and the SQL data on the local snapshot olume is sent to the Tioli Storage Manager serer. The local snapshot olume is retained as a local backup. The Tioli Storage Manager backup-archie client seres as the VSS requestor that communicates with VSS to access the SQL data to create shadow copies of SQL databases. Data Protection for SQL seres as a front end for VSS Backup operations. Because of the role that the backup-archie client performs as the VSS requestor, features such as LAN-free backup, client-side deduplication, data encryption, and data compression require that options related to these features be specified in the backup-archie client options file for VSS operations. With the IBM Tioli Storage Manager for Copy Serices Microsoft SQL VSS Integration Module, you can manage local persistent snapshots and perform offloaded VSS backups. VSS serice oeriew The VSS serice manages and directs three VSS software applications that are used during VSS operations. These are the VSS software applications that the VSS Serice manages and directs: VSS writer The VSS writer for the Microsoft SQL Serer is the SqlSererWriter. The SqlSererWriter is proided by the SQL Serer VSS Writer serice. VSS requestor This application initiates a snapshot operation. The application sends a command to the VSS serice to create a shadow copy of a specified olume. The VSS requestor is the Tioli Storage Manager backup-archie client. VSS proider This application produces the shadow copy and also manages the olumes where the SQL data resides. A proider can be a system proider (such as the one included with the Microsoft Windows operating system), a software proider, or a hardware proider (such as one that is included with a storage system). 2 IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

23 VSS hardware proiders require installation and configuration, including the installation of all required fix packages. For instructions, see the documentation for the VSS hardware proider.for more information about VSS technology, see the Microsoft Technical Reference document How Volume Shadow Copy Serice Works. VSS system proider oeriew A VSS system proider assists with creating and maintaining copies on local shadow olumes. The VSS system proider refers to the default VSS proider that is aailable with Windows Serer. Be aware that if you are using the Windows VSS system proider, no configuration is required. Howeer, you can make some configuration changes using the VSSADMIN commands. See Microsoft documentation on the VSSADMIN commands for details. VSS software or hardware proider oeriew A software or hardware proider acts as an interface during VSS processing at the software or hardware leel, respectiely. If you use a software or hardware proider, consider the following requirements when planning for VSS Backups: Place database files for each database or group of databases that are to be backed up and restored together as a unit on a separate and dedicated logical olume. Place logs for each database on a separate logical olume. Do not place non-sql data on storage olumes that are dedicated to SQL data. When using hardware snapshot proiders, do not share storage group LUNs with other databases or applications. Make sure to read and follow specific installation and configuration instructions in the documentation proided by your VSS proider endor. If you use XIV, you must install and configure IBM XIV Proider for Microsoft Windows Volume Shadow Copy Serice (xpro) Version or later. If a hardware proider is used, configure the disks that store SQL data and log files as basic disks. VSS Backup characteristics Some VSS Backup characteristics are different from Legacy backup characteristics. Examples of these differences are the backup characteristics for types supported, the backup granularity, and the backup storage location options. The following characteristics are true of VSS Backups: Full backups are supported. The copy-only full backup type is supported for VSS and Legacy backups. Log, differential, file, group, and set backup types are not supported. Legacy differential and Legacy log backups can be applied after a full VSS Backup is restored. Backup granularity is at the database leel only. Backups are managed through Tioli Storage Manager serer policy. Backups can be stored on local shadow olumes, Tioli Storage Manager serer storage, or both locations. Different policy settings can be defined for each storage location, backup method, and backup type (FULL or COPY). Chapter 1. Data Protection for SQL Oeriew 3

24 Backups to Tioli Storage Manager serer storage can be offloaded to an alternate machine as resource relief for production serers. Backups can be run in a Microsoft Windows Failoer Clustering or Veritas Cluster Serer (VCS) enironments. VSS Backup planning requirements Plan a VSS Backup strategy to optimize your backup operations performance and aoid potential problems. Consider the following requirements when planning for VSS Backups: When running VSS operations, make sure you hae at least 200 MB of free disk space on your Windows System Drie. This space is used to hold the metadata files for Data Protection for SQL. Continue to schedule and perform Legacy backups in your strategy. Make sure you hae a well-defined and tested recoery plan that meets your serice leel objecties. Use basic disks. If you plan to keep some VSS snapshot backups on local shadow olumes only, make sure to consider the VSS proider-specific implementation and configuration options when setting up your strategy. For example, if your VSS hardware proider supports a full-copy snapshot ersus a copy-on-write (COW) snapshot mechanism, be aware that full-copy type implementations hae greater disk storage requirements but are less risky because they do not rely on the original olume to restore the data. COW implementations require much less disk storage but rely completely on the original olume to perform a restore. Since these implementations are entirely controlled by the VSS proider and not Data Protection for SQL, make sure to consult your VSS proider documentation for a complete understanding of your VSS implementation. If you perform parallel VSS Backups, stagger the start of the backups by at least ten minutes. This interal ensures the snapshot operations do not oerlap. If you do not stagger the snapshots, errors can occur. In addition, configure the parallel instance backups so they do not take snapshots of the same olumes. Make sure that parallel backups do not snapshot the same LUN. Do not place multiple olumes on the same LUN. Microsoft recommends that you configure a single olume, single partition, and single LUN as 1 to 1 to 1. Do not set the ASNODENAME option in the dsm.opt file when using Data Protection for SQL. Setting ASNODENAME can cause VSS Backups and VSS Restores to fail. IBM System Storage requirements Specific database, log, file, and LUN settings are required for IBM System Storage. The DS8000, SAN Volume Controller, Storwize V7000, and XIV storage subsystems require these settings when planning for VSS Backups: Place database files for each database or group of databases that are going to be backed up and restored together as a unit on a separate and dedicated logical olume. Place logs for each database or group of databases that are going to be backed up and restored together as a unit on a separate logical olume. Do not place non-sql data on storage olumes that are dedicated to SQL. When using hardware snapshot proiders, make sure the database LUNs are dedicated to only one database or application. If you delete a LOCAL snapshot that is stored on a SAN Volume Controller or Storwize V7000 Space Efficient olume (SEV) that has multiple dependent 4 IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

25 targets, you must delete them in the same order in which you created them. That is, you must delete the oldest one first, followed by the second oldest, and so on. Failure to delete them in this order can cause remoal of other snapshots of the same source. (SAN Volume Controller and Storwize V7000 only) If you use multiple target FlashCopy mappings, a mapping can stay in the copying state after all the source data is copied to the target. This situation can occur if mappings that were started earlier and use the same source disk are not yet fully copied. Because of this, you should initiate local backups for SAN Volume Controller and Storwize V7000 storage subsystems at interals greater than the time required for the background copy process to complete. Offloaded VSS Backups An offloaded backup uses another machine to moe the data to the Tioli Storage Manager serer. This type of backup shifts the backup load from the production machine to another machine. An offloaded VSS Backup requires a VSS hardware proider that supports transportable shadow copy olumes is installed on the production and secondary machines. Offloaded VSS Backups require a Tioli Storage FlashCopy Manager license. Tioli Storage FlashCopy Manager is a separately purchasable program. Backup types Data Protection for SQL offers an expanded range of backup types that allows flexibility for your enironment and processing needs. Data Protection for SQL backup types hae the following characteristics: Full database backup (Legacy and VSS) Data Protection for SQL backs up an entire SQL Serer database and the portion of the transaction log necessary to proide a consistent database state. With both full and differential backups, the copy includes enough information from any associated transaction logs to make a backup consistent with itself. The portion of the log included contains only the transactions that occur from the beginning of the backup until its completion. Note: Legacy backups are a stream of bytes that Data Protection for SQL stores on the Tioli Storage Manager serer. VSS Backups differ since they are at the olume and file-leel. When a SQL Serer database is not fully allocated, a Legacy backup might transfer a smaller amount of data for a Tioli Storage Manager backup than for a VSS Backup because a VSS Backup transfers the entire file, regardless of its allocation. Copy-only full backup (Legacy and VSS) A copy-only full backup is a type of backup that is independent of the sequence of conentional SQL Serer backups. The copy-only full backup does not disturb the sequence for a differential backup. The differential backup is not associated with the copy-full backup, but is associated with the prior full backup that was completed. This type of backup can be used for special purpose backups that do not affect existing backup and restore procedures. In addition, when compared to conentional backups, this type of backup can be used for longer term retention. An example of a special Chapter 1. Data Protection for SQL Oeriew 5

26 purpose backup is a backup of a log before an online file restore. In this scenario, the copy-only full backup is used one time. After the backup is used, it is deleted. Differential backup (Legacy only) Data Protection for SQL backs up only the data pages in a SQL Serer database instance that changed after the last full backup and a portion of the transaction log. Differential backup is associated with the last full backup that was performed. The last full backup might be completed by Data Protection for SQL or another tool or product. For example, if you run a full backup with SQL Serer to disk backup, and run a differential backup with Data Protection for SQL, the differential backup is associated with the SQL Serer disk backup. (Microsoft SQL Serer 2012 only) Differential backup is not supported for databases on the secondary replica. Log backup (Legacy only) Data Protection for SQL backs up only the contents of a SQL Serer database transaction log since the last successful log backup. Before the first log backup, complete either a full backup or an equialent type of backup. Log backups normally follow full backups. The portion of the log included in full and differential backups is not equialent to a log backup. Additionally, in full and differential backups, the log is not truncated as it is during a log backup. Howeer, a log backup following a full or differential backup includes the same transactions as a full or differential backup. Log backups are not cumulatie as are differential; they must be applied against a base backup and in the correct order. Note: A log backup in SQL Serer terms is not equialent to an incremental backup in Tioli Storage Manager terms. File backup (Legacy only) Data Protection for SQL backs up only the contents of a specified SQL Serer logical file. This type of backup can ease the scheduling for backing up large databases. You can back up different sets of files during different scheduled backups. File, group, and set backups must be followed by a log backup, but a full is not required. Group backup (Legacy only) Data Protection for SQL backs up only the contents of a specified SQL Serer file group. This backup allows you to back up the set of database tables and indexes within a specific group of files. The "group" is specified as part of the setup within the SQL Serer when you define the database files. If no group is specified and all the database files are part of the "primary" group, it is not possible to back up or restore just part of the database by using the group. Set backup (Legacy only) Data Protection for SQL backs up the contents of specified SQL Serer file groups and files as a unit. 6 IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide

27 Restore methods Data Protection for SQL proides seeral methods of restoring SQL Serer data. Legacy restore oeriew A legacy restore obtains backup copies of SQL databases from Tioli Storage Manager serer storage and restores them to their original location. Like a Legacy backup, it uses a specialized API restore that functions with the SQL Serer. A complete restore of a database inoles restoring a full backup or the equialent thereof (from group, file, or set backups) and restoring all transaction logs since the last full backup. For a Legacy Restore, Data Protection for SQL: 1. Starts a session with a Tioli Storage Manager serer using the Tioli Storage Manager API and information contained in a client options file. 2. Starts a session with the SQL Serer using the SQL-SMO interface. 3. Queries the Tioli Storage Manager serer for a list of database backups. 4. Instructs the SQL Serer using the SQL VDI interface to begin a restore of the selected database objects. 5. Receies data from the Tioli Storage Manager serer and forwards it to the SQL Serer. 6. Ends the Tioli Storage Manager and SQL Serer sessions. VSS Restore A VSS Restore restores VSS Backups (SQL database files and log files) that reside on Tioli Storage Manager serer storage to their original location. The following characteristics are true of VSS Restores: You can only restore SQL Serer VSS Backups to the same SQL Serer instance. Full and copy-only full backup types can be restored. Differential, indiidual file groups, indiidual files, and set backups are not supported by VSS and therefore, cannot be restored. Howeer, Legacy differential and Legacy log backups can be applied after a full VSS Backup has been restored. VSS Restore granularity is at the database leel. Supports restoring one or more databases from a VSS snapshot backup located on Tioli Storage Manager serer storage. Restores can be performed in a Microsoft Windows Failoer Clustering or Veritas Cluster Serer (VCS) enironment. Supports restoring a VSS Backup (directly from Tioli Storage Manager serer storage) to an alternate location using the /relocatedir option. Chapter 1. Data Protection for SQL Oeriew 7

28 VSS Fast Restore A VSS Fast Restore restores data from a local snapshot. The snapshot is the VSS backup that resides on a local shadow olume. The restore operation retriees the data by using a file-leel copy method. The following characteristics are true of VSS Fast Restores: Full and copy-only full backup types can be restored. Differential, indiidual file groups, indiidual files, and set backups are not supported by VSS and therefore, cannot be restored. Howeer, Legacy differential and Legacy log backups can be applied after a full VSS Backup has been restored. You can only restore SQL Serer VSS Backups to the same SQL Serer instance. VSS Backups can be restored to an alternate location by using the /relocatedir option. Restore granularity is at the database leel. Restores can be performed in a Microsoft Windows Failoer Clustering or Veritas Cluster Serer enironment. VSS Instant Restore A VSS Instant Restore restores data from a local snapshot. The snapshot is the VSS backup that resides on a local shadow olume. The restore operation retriees the data by using a hardware assisted restore method (for example, a FlashCopy operation). A VSS Instant Restore is only possible when all of the data from the storage group or database that is specified for restore resides on storage subsystems that are supported by the VSS Instant Restore. If part of the data being restored, including the log files and full-text index files, resides on a local disk, a VSS Fast Restore is performed. When performing VSS Instant Restores, a best practice is to make sure that any preious background copies (that inole the olumes being restored) are completed prior to initiating the VSS Instant Restore. Howeer, this check is not necessary for XIV, SAN Volume Controller, or Storwize V7000 with space-efficient target olumes. Although VSS Instant Restore is the default restore method when all data specified for a restore resides on storage subsystems supported by the VSS Instant Restore, a failoer to VSS Fast Restore can occur when an error is detected early enough in the VSS Instant Restore process to trigger the failoer. In this situation, an error is logged in the dsmerror.log file. This is the dsmerror.log file that is used by the DSMAGENT. Howeer, a failoer to VSS Fast Restore might not always be possible. For example, if an error occurs later in the restore process, VSS Instant Restore processing fails without a failoer to VSS Fast Restore. An error can be a pending background copy on the storage subsystem, a failure to start the FlashCopy operation on the snapshot proider system, or other hardware error. You can only restore SQL Serer VSS Backups to the same SQL Serer instance. Full and copy-only full backup types can be restored. Legacy differential and Legacy log backups can be applied after a full or copy-only full VSS Backup has been restored. When planning for VSS Instant Restore, use the following considerations: 8 IBM Tioli Storage Manager for Databases: Data Protection for Microsoft SQL Serer Installation and User's Guide