Highly Available Virtual Networks and VMM

We had a few customers ask us to clarify high availability (HA) with regards to Virtual Networks (VN). In the VMM/Clustering case, there are a few considerations around virtual networks: A VN to be considered HA has to have the same exact name in all nodes of the cluster (Virtual Network names are case-sensitive), the…

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How to upgrade between the different SKUs of VMM 2008

Now that VMM 2008 has RTM’ed, a lot of folks are asking what are the upgrade paths between the various SKUs of VMM. I wanted to list two upgrade paths here and the associated process around this. Upgrade Paths supported by this method when the build number of VMM is the same: VMM 2008 Evaluation…

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Opening the VMM Administrator Console results in error 1604

After installation, if you try to open the VMM administrator console and you get the error below, you can follow these steps to troubleshoot and fix the issue: You cannot access Virtual Machine Manager server <servername>. Contact the Virtual Machine Manager administrator to verify that your account is a member of a valid user role and…

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How to get the BIOS GUID from a Hyper-V VM

Hi all, the below vbscript (save as sample.vbs and execute using “cscript.exe sample.vbs”), will give you a list of all VMs in a hyper-v system as well as their respective BIOS GUIDs. This can help in troubleshooting VMM 2008 beta for the cases where more than 1 VM on the same hyper-v host is having…

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Ports being utilized by VMM 2008

Before our official documentation for VMM 2008 comes out, I wanted to outline for everyone all the ports that VMM 2008 RTM will use (almost all of these are the same for beta). Some of these ports are configurable during VMM setup – for those ports, I listed the default option.   SQL ports required…

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dealing with VMM error 2917 : "The network path was not found"

This error is one of the most difficult to diagnose errors in a customer environment. If you are hitting this issue when trying to install the VMM server component, here are a few things to try out. -First, run “gpupdate /force” on your VMM server and reboot and try this again-If that does not work,…

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What are the different ways virtual machines can be migrated using VMM 2008

A post on the VMM newsgroup today prompted me to explain the different ways that VMs can be migrated when using VMM 2008. From a VMM perspective, we have a few ways that we allow you to move a VM from one host to another. I listed them below in no particular order: -Using Hyper-V…

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How to configure the integration between VMM and OpsMgr

VMM teams up with OpsMgr to provide a comprehensive end-to-end services management through monitoring the health and performance of workloads all the way down to the application level.  VMM and PRO (a feature of VMM that allows you to extend the services management and augment the available knowledge in the MPs to make recommendations or take…

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Supporting Red Hat for Hyper-V

I am sure many of you have heard of the recent support statements from Windows Hyper-V with regards to Red Hat. (see http://blogs.technet.com/virtualization/archive/2010/02/23/red-hat-enterprise-linux-and-hyper-v.aspx for more details). We have now posted a KB article that shows you how to enable this guest operating system in VMM. http://support.microsoft.com/kb/2022557 has all the details including the database script necessary to enable…


Virtual Machine Manager and Performance Metrics (CPU counters) – Part 1

Chetan from my team volunteered to write a two part blog post about how VMM gathers the performance information it shows on VM. This article describes the details around the performance metrics that VMM collects and how to make sense of perf information that is displayed in VMM.    VMM uses a periodically running performance…