Update to improve the backup of Hyper-V Integrated components in Hyper-V Server 2012 R2

Applies to: Hyper-V Server 2012 R2Windows Server 2012 R2 Standard

Summary


This article describes an update that improves the backup of Hyper-V Integrated components and that fixes the following issues.
  • Issue 1

    When you try to perform a live backup of virtual machines in Hyper-V 2012 R2 by using the Volume Shadow Copy Service (VSS), the backup operation is unsuccessful.

  • Issue 2

    When the Backup Guest operating system has multiple partitions, the system may fail because of time-outs in icsvc!CHyperVICProvider.

More Information


Hotfix information

A supported hotfix is available from Microsoft Support. 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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.

Prerequisites

To apply this update in Windows Server 2012 R2, you must first have update 2919355 installed.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

Status


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

References


Learn about the terminology that Microsoft uses to describe software updates.