SharePoint Admins: The Reluctant DBAs - Todd Klindt for... · 2013-04-16 · SQL is hard, let’s...
Transcript of SharePoint Admins: The Reluctant DBAs - Todd Klindt for... · 2013-04-16 · SQL is hard, let’s...
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SharePoint Admins:The Reluctant DBAs
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Who is this Todd guy?
• SharePoint MVP since 2006
• Speaker, writer, consultant, Aquarius
• Personal Blogwww.toddklindt.com/blog
• Company web sitewww.sharepoint911.com
• Twitter me! @toddklindt
• Netcast
• http://www.toddklindt.com/netcast
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My next book
http://www.toddklindt.com/prosp20
13admin
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Agenda
• Why is SQL so important to SharePoint?
• SQL versions
• SQL terminology
• Proper care and feeding of your SQL server and database
• Slides at http://www.toddklindt.com/slospug
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SQL is hard, let’s go shopping
• Used by every version of SharePoint since WSS v2
• Entire Farm configuration is stored in SQL
• All content is stored or is referenced to in SQL
• Central Admin is a web application rendered out of SQL
• Most service applications have databases as well• Search has at least 4
• User Profile has 3
• Managed Metadata
• Secure Store
• BCS
• If SQL ain’t happy, nobody’s happy
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A Few Words about Content Databases
• Each Web Application has at least one content database
• Most will have multiple content databases
• A Site Collection must exist entirely in one content database*
• However, a content database can, and usually does, contain multiple site collections
• A content database should not be larger than 200 GB• Can go larger for specialized databases
• Be very, very careful
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Worlds Greatest Slide
ItemsFiles, Calendar items, Contacts, Customers, Images, Custom
ListsDoc Libs, Pages, Events, Discussions, Surveys, Etc
Webs – SPWebPortal, Wikis, Blogs, Team, Doc, Workspaces, Search Center
Site Collections – SPSiteThe Bag
Databases – SPContentDatabaseContent Database
Web Applications – SPWebApplicationCentral Admin, Content
Servers - SPServerWeb Front End, APP
Farm – SPFarm
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Which version of SQL?
• SQL 2008 R2 SP1
• SQL 2012
• Must be 64 bit
• Can use SQL Express for no cost option• 10 GB database limit
• 1 GB of RAM
• 1 CPU up to 4 cores
• Hardware and software requirements
• http://technet.microsoft.com/en-us/library/cc262485(v=office.15).aspx
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SQL 2012 Edition ComparisonStandard Enterprise
CPUs (sockets) 4 (or 16 cores) OS Max
Memory 64 GB OS Max
Max Database Size 524 PB 524 PB
Mirroring Single threaded, Full Safety Full
Clustering 2 nodes OS Max
Database Snapshots X
PowerPivot X
AlwaysOn Availability Groups X
Reporting Services X X
Walks your dog X
Bucks $ $$$$$
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SQL Terminology
• Server – Physical box. Something you can kick. Also often erroneously used in place of Instance
• Instance – SQL process on a server. Has its own settings, databases and security. A server can have many Instances
• Database – An MDF file and one or more NDF files. Where the data is actually stored.
• Transaction Log - An LDF file. Used to store transactions before they’re written to a database
• File – MDF, NDF or LDF files that store information.
• Filegroup – A file or group of files that store a partition of a database.
• Role – SQL security boundary. Roles have permissions, users and logins go into Roles to get permissions.
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Let’s talk about Transaction Logs
User’s Desktop SharePoint Server SQL Server RAM Transaction log Database File
•
•
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Care and feeding of SQL
• Maintenance Plans are key• Can be easily created manually or with a wizard
• Easily modified after they’re created
• Can include a variety of operations, including backups
• http://www.toddklindt.com/blog/Lists/Posts/Post.aspx?ID=248
• Can email you
• Must create yourself as an operator
• What should you use them for?
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Check Database Integrity
• Corrupt data backs up every bit as well as uncorrupt data
• Uses T-SQL command DBCC checkdb
• Can be very disk and CPU intensive
• Can use PHYSICAL_ONLY switch to shorten time and impact
• Can run against non-live copies of your databases
• http://msdn.microsoft.com/en-us/library/ms176064.aspx
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Backups
• Three types
• Full
• Partial
• Differential
• Can back up database and transaction logs
• Regular transaction log backups keep your hard drives happy
• Use backup compression to save space and time
• Don’t forget third party solutions
• RBS complicates this
• A lot!
• Really!
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File System Fragmentation
• Fragmented MDF, NDF and LDF files slow SQL down
• Using the built-in tool may lock databases
• 3rd party tools are a better option
• Pregrow databases to minimize fragmentation
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Size your databases wisely
• Databases get larger over time, it’s their job
• SQL grow operations are slow and will likely result in fragmented databases
• Your database should always have white space. Always
• Monitor your databases and pregrow them to maintain whitespace
• Change autogrow settings to something more reasonable
• Autogrow is a last resort
• Consider setting a maximum database size
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Don’t shrink databases, dummy
• Database size is reduced by dropping unused space.
• Do not shrink databases unless something drastic has happened
• Massive web, site collection, or content deletions
• Abandoning databases
• You lost a bet
• Forces databases to grow again later
• Has a heavy impact on the server
• Fragments database indexes, which results in slower performance
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What about RBS?
• Storage of blobs outside of SQL
• Bolts in to SharePoint 2013
• Increase scale
• Increase performance
• Complicates disaster recovery
• Repeat after me, “I will not use the SQL Filestream provider in Production.”
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Some SQL Best Practices
• Create multiple TempDB files
• Put databases and transaction logs on separate spindles
• Arrange databases according to speed of drives
• Change Autogrow
• Increase the growth rate
• For databases and logs
• Consider setting a maximum size
• Keep your databases under 200 GB, realistically 50 GB
• Use multiple content databases
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More good ideas
• Do not access your databases in SQL
• pretend they don’t exist
• Here’s what’s supported
• http://support.microsoft.com/kb/841057
• Farm backups in SharePoint also do database backups
• Backup your System databases too
• Install SQL Server Management Studio on one of your SharePoint servers
• Or use Query Express
• http://www.albahari.com/queryexpress.aspx
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SQL Instance settings
• Set Max RAM
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• Compression
• File Location
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• Set MaxDOP = 1
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Shenanigans
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More Shenanigans
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SQL Alias
• Like a HOSTS file for SQL connections
• Allows us to move SharePoint to a different SQL without SharePoint knowing
• Use CLICONFG.EXE to config
• Must configure for 64 and 32 bit
• Definitive work on the subject, http://www.toddklindt.com/sqlalias
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Fun links
• SharePoint 2013 Hardware and Software requirements• http://technet.microsoft.com/en-us/library/cc262485.aspx
• Tips for database maintenance• http://technet.microsoft.com/en-
us/magazine/2008.08.database.aspx
• Plan for RBS in SharePoint 2013• http://technet.microsoft.com/en-us/library/ff628583.aspx
• Storage and SQL Server capacity planning • Not updated yet for SharePoint 2013
• http://technet.microsoft.com/en-us/library/cc298801.aspx
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Questions?
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