Invoking diskshadow to back up a Virtual Machine from a Hyper-V Host

DiskShadow.exe is a new tool that shipped with Windows Server 2008 and it allows you to create and restore shadow copies (snapshots). The tool is similar to vshadow (a free tool that ships with the Volume Shadow Copy/VSS SDK), but it has a diskpart-like interface. You can invoke DiskShadow from a cmdline, or you can…

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Trying to add Windows Server 2008 R2 as a host to VMM 2008?

we have several customers that tried to add a Windows Server 2008 R2 as a host in VMM 2008. Our team has not validated that R2 will work with VMM 2008 and it is officially not supported. However, for the few of you that tried to add a Windows Server 2008 R2 Core edition as…

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Issues with adding a host to VMM when the computer has more than 16 processors

It has come to our attention that trying to add a computer with more than 16 processors (for example a quad six-core machine with 24 processors) is crashing the VMM server with the following exception: System.InvalidOperationException: Nullable object must have a value.    at System.Nullable`1.get_Value()    at Microsoft.VirtualManager.Engine.Adhc.WindowsHostDataProperties.GetProcessorData()    at Microsoft.VirtualManager.Engine.Adhc.WindowsHostDataProperties.PopulateProperties()  From a Hyper-V perspective we…

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Running the Virtual Machine Manager server component inside a Virtual Machine

Running VMM inside a Virtual Machine is a fully supported way of running VMM. Our team tests this scenario and we have some customers deploying VMM in such an enviroment. If you would like to deploy VMM in such an environment, it is recommended to place the SQL server in a separate server, especially if your…

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How to enable PRO with VMM

Last week I mentioned I was going to talk about how to enable PRO with VMM. PRO stands for Physical Resource Optimization. If you followed my steps from last week, your Operations Manager and VMM servers are configured to work together to provide monitoring and alerting within your virtualized environment.  This also means that your…

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Hyper-V telling you that integration services are installed on Win2k8 VMs but mouse is still not working?

This probably means that you need to upgrade to RC0 Integration Services for Hyper-V. This is KB949219 which is publicly available from the Microsoft download center. This needs to applied inside Win2k8 VMs, since integration services shipped with the core operating system and they need to be upgraded. Since Win2k8 shipped with integration services, you are…

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getting the computer name of a virtual machine

A lot of people have asked me how they can get the actual computer name or FQDN of a virtual machine from from the host system. (FYI, this method does not allow you to get the IP address from within the VM – to do that, you would need to use your DNS infrastructure to correlate…

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SCVMM 2008 Releases Management Pack Update

We have been getting a lot of excitement and questions about the reports for the VMM 2008 MP.  With this blog post we can announce that this update is ready and available for download today.    This update to the MP includes updated reports for all platforms that we manage (VS, Hyper-V,  and VMware) :…

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Azman permissions for VMM-managed Hyper-V hosts

When VMM starts managing a hyper-v host, it takes full control of the Azman XML file that contains the permissions for Hyper-V. In fact, VMM will create a new copy of the file in a separate directory location and point hyper-v to that file (the file name is HyperVAuthStore.xml and is located inside the installation…

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