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For SharePoint Servers 2016 and 2019, SQL administrator must create Maintenance Plans for SharePoint content databases: SQL statistics are not managed by the health rule “Databases used by SharePoint have outdated index statistics” Content databases have the Auto Update Statistics property set to True `
To keep SharePoint running with optimal performance, it’s recommended to run the following maintenance tasks for your SharePoint databases: 1 Check database integrity 2 Defragment indexes by reorganizing or rebuilding them 3 Set the fill factor for a server More
How to create a maintenance plan for SQL Server?
To do this open the SQL Server Management Studio, navigate to Management > Maintenance Plans and click on Maintenance Plan Wizard. Click Next until you reach the Select Plan Properties page. Specify a Name for your maintenance plan. Click on the Change… button to schedule the job.
With the exception of the Claims to Windows Token Service account, no Service Application Pool account should have Local Administrator access to any SharePoint server, nor any elevated SQL Server role, for example, the sysadmin fixed role.
As is the case with front-end servers and application servers, the configuration for database servers affects how well SharePoint Server performs. Some databases have to be on the same server as other databases. Conversely, some databases cannot be on the same server as other databases.
How to check the integrity of a SharePoint database?
Select the databases you want to check for integrity. You can select all SharePoint databases. Click Next. Select the databases you want to rebuild the indexes. Click Next. Select Change free space per page percentage to and type 80. Check Sort results in tempdb. Click Next.