Article ID: 2276717 - Last Review: January 12, 2011 - Revision: 5.0

FIX: Error code 1456 when you add a witness to a new database mirroring session that has the same database name as an existing database mirroring session in Microsoft SQL Server 2008 and in Microsoft SQL Server 2008 R2

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Microsoft distributes Microsoft SQL Server 2008, and Microsoft SQL Server 2008 R2 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 or SQL Server 2008 R2 fix release.

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SYMPTOMS

Consider the following scenario:
  • You start a Microsoft SQL Server 2008 or a Microsoft SQL Server 2008 R2 instance that is a partner of an existing database mirroring session.
  • You start a new database mirroring session that has the same database name as the existing database mirroring session.
  • You try to add the SQL Server instance as a witness server to the new database mirroring session.
In this scenario, you receive error code 1456 and the witness server is not added to the new database mirroring session.
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CAUSE

This problem occurs because SQL Server 2008 and SQL Server 2008 R2 look up the database mirroring session by using the database name unexpectedly. 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.

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RESOLUTION

Cumulative update information

SQL Server 2008 R2

The fix for this issue was first released in Cumulative Update 4. For more information about how to obtain this cumulative update package for SQL Server 2008 R2, click the following article number to view the article in the Microsoft Knowledge Base:
2345451  (http://support.microsoft.com/kb/2345451/ ) Cumulative Update package 4 for SQL Server 2008 R2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
981356  (http://support.microsoft.com/kb/981356/ ) The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released

SQL Server 2008 Service Pack 2

The fix for this issue was first released in Cumulative Update 1 for SQL Server 2008 Service Pack 2. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2289254  (http://support.microsoft.com/kb/2289254/ ) Cumulative update 1 for SQL Server 2008 Service Pack 2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2402659  (http://support.microsoft.com/kb/2402659]/ ) The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 2 was released

SQL Server 2008 Service Pack 1

The fix for this issue was first released in Cumulative Update 10 for SQL Server 2008 Service Pack 1. For more information about this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2279604  (http://support.microsoft.com/kb/2279604/LN/ ) Cumulative update package 10 for SQL Server 2008 Service Pack 1
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 fix release. Microsoft recommends that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
970365  (http://support.microsoft.com/kb/970365/LN/ ) The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 1 was released
Microsoft SQL Server 2008 hotfixes are created for specific SQL Server service packs. You must apply a SQL Server 2008 Service Pack 1 hotfix to an installation of SQL Server 2008 Service Pack 1. By default, any hotfix that is provided in a SQL Server service pack is included in the next SQL Server service pack.
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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REFERENCES

For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897  (http://support.microsoft.com/kb/935897/ ) An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499  (http://support.microsoft.com/kb/822499/ ) New naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates
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APPLIES TO
  • Microsoft SQL Server 2008 Enterprise
  • Microsoft SQL Server 2008 Developer
  • Microsoft SQL Server 2008 Standard
  • Microsoft SQL Server 2008 Standard Edition for Small Business
  • Microsoft SQL Server 2008 Workgroup
  • Microsoft SQL Server 2008 R2 Developer
  • Microsoft SQL Server 2008 R2 Enterprise
  • Microsoft SQL Server 2008 R2 Standard
  • Microsoft SQL Server 2008 R2 Standard Edition for Small Business
  • Microsoft SQL Server 2008 R2 Workgroup
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Keywords: 
kbqfe kbfix kbexpertiseadvanced kbsurveynew KB2276717
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