Update enables Premium Storage support for Data files on Azure Storage and resolves backup failures

Applies to: SQL Server 2014 EnterpriseSQL Server 2014 EnterpriseSQL Server 2014 Enterprise Core More

Improvements and fixes

  • Enables support to store SQL Server database files as Windows Azure Blobs in Azure Premium Storage. This helps prevent the problem in which you receive one of the following error messages when you try to create a database that include files that resides in Microsoft Azure Premium Storage:

    Msg 5123, Level 16, State 10, Line 7
    CREATE FILE encountered operating system error 1117(The request could not be performed because of an I/O device error.) while attempting to open or create the physical file '<File name>.mdf'.

    Msg 1802, Level 16, State 4, Line 7
    CREATE DATABASE failed. Some file names listed could not be created. Check related errors.
  • Resolves the problem in which a read operation fails immediately after a network failure during SQL Server backup, and then SQL Server backup fails.

    Note After you apply this update, SQL Server retries the read operation when a network failure occurs.


These problems were first fixed in the following cumulative updates of SQL Server:

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


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