Make your SharePoint fly by tuning and optimizing SQL Server
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This document summarizes a presentation on optimizing SQL Server for SharePoint. It discusses basic SharePoint database concepts, planning for long-term performance by optimizing resources like CPU, RAM, disks and network latency. It also covers optimal SQL Server configuration including installation, database settings like recovery models and file placement. Maintaining databases through tools like DBCC CheckDB and measuring performance using counters and diagnostic queries is also presented. The presentation emphasizes the importance of collaboration between SharePoint and database administrators to ensure compliance and optimize performance.
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Make your SharePoint fly by tuning and optimizing SQL Server
- 2. Make your SharePoint Fly by Tuning & Optimizing SQL Server Serge Luca, Isabelle Van Campenhoudt ShareQL, Belgium Add Speaker Photo here
- 3. Serge Luca Serge Luca 11 x SharePoint MVP, Brussels Consultant, speaker, trainer Managing partner of www.ShareQL.com SharePoint since 2001 Blog: http://sergeluca.wordpress.com/ [email protected] @SergeLuca Serge Luca
- 4. Isabelle Van Campenhoudt Isabelle Van Campenhoud t SQL Server MVP, Brussels Consultant, speaker, trainer, PASS V-Chapter Leader Managing partner de www.ShareQL.com SQL Server since 1999 Blog: http://thesqlgrrrl.wordpress.com/ [email protected] @thesqlgrrrl Isabelle Van Campenhoudt globalfrench.sqlpass.org
- 5. Credits Serge Luca Accidental DBA Isabelle Van Campenhoudt SQL guru
- 6. Agenda
- 7. Agenda Explain Basic Concepts Plan for long term performance Optimal Configuration Maintenance Measure & Improve Conclusions Explain Plan Configure Maintain Measure
- 9. SharePoint databases 100% of SharePoint content stored in SQL Server Farm Configuration information stored in configuration db Central Administration content stored in own content db Most Service Applications have at least one db All Web Applications have at least one content db Farm can have many databases : >20 Explain Source : Brian Alderman, modified
- 10. SQL Server basic concepts System databases Master : similar to the SP configDB Model : template for other dbs Tempdb : temporarily results Msdb : for automation User databases The SharePoint databases Explain Source : Brian Alderman, modified
- 11. .MDFCheckpoint.LDF Data Data Simple Recovery Model Add Content Content Database instructions instructions Explain
- 12. .MDFCheckpoint.LDF Data Data Full Recovery Model Add Content Content Database instructions instructions Explain
- 13. Plan for long term performances
- 14. Optimize Resources CPU RAM DISK Network
- 15. Quick Win : NTFS Allocation Unit Size 64K is optimal, 4K = 30% Performance Penalty (data files, not log files) Use chkdsk <drive>to Verify Use Format to Configure: • Format <drive> /Q /FS:NTFS /A:64K /V:<volume> /Y
- 16. Must Win: Network latency Network (dedicated subnet for SQL) Latency between web front ends and SQL Server • Mandatory for stretched farm, but good practice: • < 1 ms during10 minutes (1% failure max) • 1 Giga bits / sec • Recommended if mirroring or Always On Sync (see later) Use Alex Strachan PowerShell scripts !!!
- 17. Disks: Volume but also IOPS Because they need to know… As part of capacity plan Determine how many GB you need ->Talk to the DBA & Capacity Manager Determine how much IOPS you need ->Talk to the SAN team
- 18. Content DB volume & Site Collections Site Collections only reside in one database Content database contains multiple site collections (2,000 Default Setting) If Site Collection > 100GB store in own content database •Soft limit maximum size <= 200 GB
- 19. Databases consume disk throughput Database files IOPS requirements Typical load on I/O subsystem. Optimization TempDB High 2 IOPS/GB Write Transaction Log High 2 IOPS/GB Write Content DB High 0.5-0.75 IOPS/GB 4 TB supported: 0.25 IOPS/GB , ideally: 2 IOPS/GB Read Search Crawl database Medium to high 10 IOPS per 1 document per second (DPS) crawl rate. Write Search Link database Medium 10 IOPS per 1 million items in the search index. Search Analytics reporting database Medium Not applicable. Search administration database Low Not applicable.
- 20. How can you check if you SAN support these IOPS ? • IOMeter (free) • SQLIO (free) • Discuss with SAN team … • In production: resource intensive • Test with a file > than SAN cache • Test reading/writing , random 64k (for data)and sequential (for transaction log)
- 22. Installing SQL Server For SharePoint 2013: • SQL Server 2008 R2 SP1 • SQL Server 2012 (SP1 for BI) • SQL Server 2014 (SP2013 SP1 & April CU) For SharePoint 2016: • SQL Server 2014 • SQL Server 2016 • SQL Server 2017 (Win) Don’t install SSMS on the SQL Server computer Use named instances SharePoint Use a dedicated instance Run the service with a Managed account No specific permission, Use SQL configuration manager ---IFI
- 23. Collation settings Latin1_General_CI_AS_KS_WS for SharePoint databases Any CI collation is supported for tempDBs, master Latin1_xxx_ is recommended SP uses this collation when it creates its own db Cannot be changed after the setup !!!
- 24. Server Properties Max degree of parallelism Maxdop=1
- 25. Memory Limits Specify memory limits
- 26. Tips Use alias for the connection string • Client alias or DNS alias (preferred) Good practice : every SP Content db must be created (and documented) by a DBA after a strict capacity plan
- 27. Recovery – related to your RPO & Backups Model db : recovery model = template Tempdb : recovery model = simple SharePoint DB : recovery model ? Contend DB = full Config DB= simple Services App DBs= it depends : • http://technet.microsoft.com /en- us/library/cc678868.aspx UAT & Production Always On Availability groups: recovery = full ! Developer Workstation /Test Farm: recovery = simple!
- 28. Model DB settings is the template Increase Initial size Increase Autogrowth (MB , not %)
- 29. TempDB settings : crucial Configure Tempdb files #files = #cores Max 8 if #cores > 8 Same size for every file Configure Tempdb Size At Least 10% of Biggest Content DB’s Size Tempdb Database Settings Increase Initial Size Setting Increase Autogrowth Settings (Use MB Not %) Use Simple Recovery Model Place on Different Drive Than Content Databases
- 30. Files placement Priority (Fastest to Slowest Drive) Tempdb Data and Transaction Log Files Content DataBase Transaction Log Files Search Database Data Files Content Database Data Files Use Multiple Data Files for Content and Search DB’s Distribute Equally-Sized Data Files Across Separate Disks Number of Data Files Should Be <= Number of Processor Cores
- 31. Installing SharePoint Setup account (sp-install) Must be: (SQL Server) DBcreator (SQL Server) Securityadmin Local admin (SP Machines only) Domain account
- 32. Using SQL Server Resource Governor to optimize Search Database usage Part of SQL Server Enterprise (since SQL 2008) Limits CPU and memory usage on some DBs (and IO in SQL Server 2014) • like search DBs Allow less CPU & mem & IO usage during work hours Allow more CPU & mem & IO usage during off hours
- 33. Maintenance
- 34. SharePoint: Health Analyzer Job will defragment the indices If fragment > 30% & rowcount > 10.000 Job will update statistics AUTO_CREATE_ STATISTICS OFF
- 35. DBA: Verify Integrity of databases DBCC CheckDB Check REPAIR_REBUILD Option to Fix Errors (Not Always Possible) REPAIR_ALLOW_DATA _LOSS Not Supported Time & Resource Consuming Operation, Run During Non-Peak Hours For Very Large DBs consider using option MAXDOP=1
- 37. Measuring is the key Measure the compliance Measure the performance
- 38. Measure the compliance SQL configuration Disks placements Databases configuration Correct maintenance SPDOCKIT SYSKIT SQL Policies & Custom Reporting KANKURU Microsoft BPA Custom PowerShell DBA Tools Extended Properties
- 39. Measure the performance CPU I/O Network Memory Run a trace of Performance Counters (24 hours) Provides templates of accurate counters Analyse regarding thresholds Generate meaningfull reports Map Toolkit Performance Analysis of Logs (PAL) SCOM You need a Baseline
- 40. Principal SQL Counters to measure Counters: Should be: Memory: Available Bytes At least 4 GB for the system Logical Disk: Disk sec/Read Between 15 and 25 ms Logical Disk: Disk sec/Write Between 15 and 25 ms Process: cpu/working set/io SQLsrve.exe % other processes Processor Max 40% SQL Server: Buffer Manager: Buffer Cache Hit Ratio >97% SQL Server: Buffer Manager: Page life expectancy > 300 sec (but do a baseline)
- 41. Performances interpretation (source : PAL)
- 42. Stress your system to not have it stress you
- 43. A Dashboard is useful TIP: I use SQL Diagnostic Queries queries in Power BI
- 44. Monitor your System on a daily basis • Continuous monitor • Rely on SQL monitoring • Less is More • Stick to the basics • Notifications • Adapt • Reactions • Have a strong reaction chain
- 45. Conclusions
- 46. Conclusions Explain Plan Configure Maintain Measure Build strong relations with: DBA SAN Network Monitoring Team
- 47. Useful links • http://www.iometer.org/ • https://dbatools.io/ • http://kankuru.com/ • https://pal.codeplex.com/ • https://www.sqlskills.com/blogs/glenn/sql-server- diagnostic-information-queries-for-november-2017/ • https://www.spdockit.com/ • https://www.syskit.com/
- 48. Merci ! • @thesqlgrrrl @sergeluca
Editor's Notes
- #2: This is the Pre-Title Screen. Please do not place any content on this screen.
- #3: To add your image, first delete the place holder image as shown in the white box. Then insert your picture and scale it to be bigger than the size of the white box shown. Finally, right click on your image and select ‘Send to back’ – your image should now be framed correctly. Please add co-speaker image directly below, if applicable
- #5: TODO GUSS
- #8: Parle-ton encore de ha ? ---non Ajouter une partie audit et monitoring en passant en revue le toolset: Spdockit et Spsqlkit Dbatools Kankuru Policies Tatoos SQLtreeo Methodologie d'audit Insister sur la maintenance Insister sur le capacity planning Prevoir un tableau synoptique avec les points d'attention les outils les gens qui (people tools process)
- #12: In ldf, insttructions are stored in the lDF, data are stored in memory, and during the checkpoints data are stored in the MDF : ldf are cleaned-up
- #13: In ldf, insttructions are stored in the lDF, data are stored in memory, and during the checkpoints data are stored in the MDF : ldf are cleaned-up
- #16: Sql server reads 64k blocks (8x8 pages)
- #17: https://sergeluca.wordpress.com/2014/01/21/stretched-farms-and-sharepoint-2013/