dbi services Antonio De Santo Stéphane Haby Migration to SQL Server 2012 Consultant Consultant dbi services 1

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1 dbi services Migration to SQL Server 2012 Antonio De Santo Consultant Stéphane Haby Consultant

2 dbi services Migration to SQL Server 2012 Agenda i. Introduction ii. Why? iii. How? iv. After v. Conclusion

3 Introduction what is your migration? You have SQL Server You have another RDBMS

4 Introduction SQL Server generation /R Migration between distant generations are more difficult Only 2 generations away for a migration: Migration from 2000 to 2012 requires an intermediate step

5 dbi services Migration to SQL Server 2012 Agenda i. Introduction ii. Why? iii. How? iv. After v. Conclusion

6 Why? From SQL 2000 to 2005 Solid offering for departmental and mid-market IT and enhanced enterprise data platform: SQL Server Management Studio High Availability: Database mirroring, piecemeal restore, indexation online Partitioning (tables and indexes) XQuery and CLR Snapshot isolation Service broker

7 Why? From SQL 2005 to 2008 Comprehensive data platform solution for the enterprise: Resource governor Transparent data encryption Auditing Data and backup compression Policy-based management New data types (spatial, dates, and time) Filestream New cube designer Write-back to MOLAP SSAS performance and scale

8 Why? From SQL 2008 to 2008R2 Comprehensive, integrated data management and business intelligence (BI): PowerPivot for Microsoft SharePoint Report Builder 3.0 Support for up to 256 logical processors Master data services Multi-server management Data-tier application component (DAC) Complex event processing System preparation Unicode compression

9 Why? From SQL 2008R2 to 2012 Facility to manage High availability, performance features: AlwaysOn Windows Server Core support ColumnStore Index Visual Studio 2010 & SQL Data Tools FileTable Contained Databases Sequences, new functions PowerView MDS, DQS

10 Why? SQL Server & OS SQL Server 2000: Not available of Windows 2008 & 2008 R2 SQL Server 2005: Windows 2000 SP4, 2003 SP1 & 2008(SP2 for SQL Server) SQL Server 2008: Windows 2003/R2 SP2, 2008 & 2008 R2(SP1 for SQL Server) SQL Server 2008 R2: Windows 2003/R2 SP2, 2008 SP2 & 2008 R2 SQL Server 2012: Windows 2008 SP2 & 2008 R2 SP1 Windows 2008 R2 SP1 server Core

11 Why? Microsoft support SQL Version Mainstream Support Extended Support SQL Server 2000 SP SQL Server 2005 SP SQL Server SQL Server 2008 R Windows Version Mainstream Support Extended Support Windows Server Windows Server Windows Server Windows Server 2008 R

12 dbi services Migration to SQL Server 2012 Agenda i. Introduction ii. Why? iii. How? iv. After v. Conclusion

13 How? Microsoft Assessment and Planning MAP version 6.5 Functions Discovery and inventory Database Consolidation Appliance SQL Server Licencing Detail reporting Link:

14 How? SQL Server update Platform change? Db granular control? Fallback? parallel versions? Parallel update Direct update

15 How? Direct update SQL Server 2008 R2: Since 2000 SP4, 2005 SP2 & 2008 SQL Server 2012: Since 2005 SP2, 2008 & 2008 R2 Simple Fast Same server for applications Update System Data's little control non-granular Downtime No fallback (need a reinstall)

16 How? Direct update BEGIN Prerequisites installation Check Binaries installation Stop Services redirects services to the new version Single user Start Attach resource db Stop Services Restart services Update all databases Update Scripts Delete old binaries END

17 How? Parallel update New instance or Server Backup/restore or attach/detach Change platform Can be tested Db granularity Fallback Complex Volumes copy Change instance or/and server name

18 How? Preparation checklist Schedule Known your applications Document and analyze the source platform Test and compare the application s behavior Document the scenario and the migration procedure Script and automate the migration Test the scenario and test turning back Check your backups "I love it when a plan comes together"

19 How? Preparation Security: users/logins mapping ALTER USER user WITH LOGIN = login Clonage : Transfer SQL Agent jobs Script or SSIS job Maintenance plan DTS / SSIS Verify / Revise / Recopy Migrate DTS to SSIS package Others Stored procedure in master SQL Mail

20 How? SQL Server Upgrate Advisor Analysis of several components, including DTS Analysis of traces or SQL queries files Displays a detailed report Provides actions to take before and after the update... But does not replace the test

21 How? Documentation Uses Tools SQLDiag.exe Sp_configure, sp_dboption storage, network, security configuration SQL Agent Job DTS / SSIS Performance's monitoring Perfmon SQL Profiler Application s response time

22 dbi services Migration to SQL Server 2012 Agenda i. Introduction ii. Why? iii. How? iv. After v. Conclusion

23 After... Tests before migration Is essential Migration changes the performance of my queries and stored Procedures in good and sometimes in bad! An update change your RDBMS Engine The optimizer behavior is different Query plans are different Procedure s cache management is different

24 After... Analysis Tools SQL Profiler Capture activity Replay and recapture RML Utilities (Traces from 2000 to 2008R2 not 2012) ReadTrace Replay & Reports Distributed Replay (Traces from 2005 to 2012) The optimizer behavior is different Query plans are different Procedure s cache management is different

25 After... Improve performances Update statistics (FULL SCAN if possible) Review or delete query hints Rewrite queries Measure tempdb usage Check query plans, using the DTA Use the new features Partionning Columns Store index, filtered indexes

26 After... Checklist Review all log (eventlogs, errorlogs) Check the integrity DBCC CHECKDB ( For SQL 2000: DBCC UPDATEUSAGE) Check the scheduled tasks and maintenance plans Check the security Update statistics Reconfigure and use the new features Perform validation tests, including fallback After validation: decommission / uninstall the old servers

27 dbi services Migration to SQL Server 2012 Agenda i. Introduction ii. Why? iii. How? iv. After v. Conclusion

28 Conclusion SQL Server Migration Assistant Free download For Sybase, Oracle, MySQL or Access Migrate to 2005, 2008/R2, 2012 or Azure Provide an estimate report Automates main operations Data types mapping Objects Migration Data Migration

29 Conclusion SSIS Packages for Data Migration Generator Develop by Pascal Belaud, Microsoft France Automatic generation of SSIS Packages for data s transfer from all OLE DB connector to SQL Server Free on codeplex:

30 Conclusion SQL Server Analysis Services Structural changes No virtual cubes No virtual dimensions Direct upgrade supported Parallel upgrade with MigrationWizard.exe Install backward compatibility

31 Conclusion SQL Server Reporting Services Since Reporting Services 2008 Not on IIS uses native http.sys Direct upgrade supported Manually Upgrading to a SQL database using SSRS 2000 in remote

32 dbi services Any Questions? Please Do Ask! Antonio De Santo Consultant Stéphane Haby Consultant We look forward to working with you!