I have a 4 server SharePoint farm.

Two Web Front servers FE1, FE2

TWO App servers APP1, APP2

TWO SQL servers SQL1, SQL2 for SQL server Always on.

I need to replace the current SharePoint SQL server instance on SQL1 with SQL server 2012 Availability groups on SQL1 and SQL2.

I have created a AOAG group on AG1 with a listener SQL-L1

  1. I have configured Windows fail-over clustering and SQL availability groups.
  2. In the Central admin i have changed the SQL server instance to the availability listener AG1
  3. I also configured the SQL Alias name to point the SQL availability group AG1.

Do i need to run the SharePoint Configuration wizard and change the SQL instance to the AG1 availability group. Are there any best practices that I am missing or crucial steps that i have forgotten.

I need to configure the Always on with asynchronous mode with Manual failover.

I get an the following errors after setting the SQL Alias to SQL-L1

  • "Unknown SQL Exception 0 occurred. Additional error information from SQL Server is included below. Connecting to a mirrored SQL Server instance using the MultiSubnetFailover connection option is not supported."

  • Can not connect to configuration database: System.Data.SqlClient.SqlException (0x80131904): Connecting to a mirrored SQL Server instance using the MultiSubnetFailover connection option is not supported.

1 Answer 1


You don't need to run the config wizard. We moved the same server in past and follow the same exact steps.

  • mark the Dba readonly and move to new sql server.we did this to minimize the down time.
  • stop the sharepoint so that all connection stop to old server.
  • create sql alias on the sharepoint server point to new server.
  • start the sharepoint
  • test it

I always recommend to perform these steps in lower farm to test the process.

Check this for more information https://technet.microsoft.com/en-us/library/cc512725.aspx

  • Thank you for the reply. But i get the errors database not supported errors and Unknown SQL exception error . I have modified the question to reflect detailed errors. Sep 22, 2016 at 9:27

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