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Hyper-V Issue that can affect SCVMM operations

What: A new article has been released with a hotfix to resolve an issue where Windows 2008 R2 servers running on AMD Family 10h processors may restart unexpectedly or stop responding. No error messages are generated.

When: Issue may occur when the Live Migration feature is used to move a virtual machine (VM) from one Windows Server 2008 R2 Hyper-V based node to another. This implies that the nodes are members of a Failover Cluster. This problem usually affects the source node that is the original location of the VM.

Why: Erratum 383 in AMD Family processors generates a machine check exception.

Hotfix Information: To apply the hotfix the computer must be running Windows Server 2008 R2. You may have to restart the computer after installing the hotfix.

SCVMM Note: Install this hotfix on all Windows Server 2008 R2 systems that are nodes of a Failover Cluster.

Microsoft Support URL

The computer stops responding or restarts during the Hyper-V Live Migration process in Windows Server 2008 R2
http://support.microsoft.com/default.aspx?scid=kb;EN-US;981618