Assume that you use database mirroring in high-performance mode in Microsoft SQL Server 2012. When you try to add new file groups to the principal database, new files in the new file groups are not synchronized on the mirror server.

Note ADR is not supported for databases enrolled in database mirroring. Status. Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. Resolution. This issue is fixed in the following cumulative update for SQL Server: Cumulative Update 5 for SQL Server 2019

Resolution. This fix is included in the following cumulative updates for SQL Server: Cumulative Update 1 for SQL Server 2017. Cumulative Update 5 for SQL Server 2016 Service Pack 1. About SQL Server builds:

When you use database mirroring in Microsoft SQL Server 2012 or Microsoft SQL Server 2014, you may hit an assert condition and database mirroring enters to suspended state. Cause. The issue occurs because, when allocating a new page, SQL Server obtains an X lock on the new page. SQL Server will put the hobt_id (Heap or B-Tree ID) to which the ...

Note ADR is not supported for databases enrolled in database mirroring. Status. Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. Resolution. This issue is fixed in the following cumulative update for SQL Server: Cumulative Update 5 for SQL Server 2019

When you use Microsoft SQL Server 2012 with the Service Broker, database mirroring or Availability Groups, the connection to SQL Server database has high latency and the response takes much more time. Cause. The issue occurs because, when the communication between two servers that use Service Broker, database mirroring or Availability Groups ...

In an application, you use SQL Native Client to connect to the instance of the principal server in the database mirroring session. In the application, you set the Failover_Partner option in the connection string to the mirror server. A failover occurs in the database mirroring session.

When you try to add a witness server to the new database mirroring session, SQL Server finds an existing database mirroring session that has the same database name as the new database mirroring session. Therefore, the witness server is not added to the new database mirroring session successfully. Resolution Cumulative update information

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Fixes a TCP port issue that occurs when you use the .NET Framework Data Provider for SQL Server (System.Data.SqlClient) to connect a database that has database mirroring configured in the .NET Framework 2.0. This issue occurs after a failover operation.