Hyper-V notes from the field
Errors discovered during backup of VHDS in guest clusters
Hi, with Windows Server 2016 we introduced VHD Sets to create a shared virtual disk to be used with...
Date: 11/08/2017
Compliance Scan from SCVMM fails with Error (2927)
Hi, recently, I had some occurrences of the following error while scanning the compliance state of...
Date: 12/09/2015
Verify all SCVMM Host Agents are up to date
Hi, now that UR8 is available, I modified my script slightly to also check if the DHCP Extension is...
Date: 08/07/2014
Achieving over 1-Million IOPS from Hyper-V VMs in a Scale-Out File Server Cluster using Windows Server 2012 R2
Hi, I'd like to point you to a Whitepaper from your Development Group that impressively shows how to...
Date: 05/26/2014
Building a teamed virtual switch for Hyper-V from SCVMM
Hi! A common question today is how to setup your cluster blades with (10GB) Ethernet connections....
Date: 10/25/2013
Using Port ACLs in Hyper-V 2012
Hi, recently, I had an issue where it was needed to carefully control which machines can talk to...
Date: 07/03/2013
Howto move a Linux VM from Vmware to Windows Azure VM
Hi, I just had a interesting task I'd like to share: Customer had some Linux CentOS 6.3 VMs running...
Date: 03/14/2013
Hyper-V Powershell module not installed during Bare Metal Deployment
Hi, I just had an issue that my 2012 Hyper-V Hosts did not have the new powershell commands...
Date: 11/28/2012
RedHat 6.3 VM may loose Network connectivity after a live migration
Hi, recently, I had an issue with a RHEL 6.3 VM with the latest Integration Components 3.4. After...
Date: 11/20/2012
Raising Assigned Memory on Demand on Hyper-V
Hi, I'm using Dynamic Memory for all my VM's and tend to start low (512MB). However, it happend to...
Date: 10/22/2012
Windows 8 Beta allows to import a VM from plain files.
Hi, this is a "WOW" feature for me that I found not to be documented. Until now you could only...
Date: 03/07/2012
Windows Server 8 beta available
Hi everyone, besides the Consumer Preview of Windows '"8", there was also a beta version of Windows...
Date: 03/05/2012
Service Templates in VMM 2012
As VMM 2012 is almost complete, I started to upgrade to the RC Version. I thought I’ll share...
Date: 01/03/2012
Time Drift in VM
Recently, we worked on an issue with time drift in a VM, and my colleague Johann Binder had an...
Date: 11/11/2011
Problems with Live Migration
Hi, today my collegue Bernd Högen has interesting finding that he would like to share:...
Date: 06/07/2011
Time Synchronization and Domain Controller VM's
Hi, often, I’m getting asked how to configure Time Synchronization for Hyper-V VM’s that...
Date: 05/11/2011
Recent fixes that address slow network throughput on Hyper-V
Hi, Recently, I’ve been working on several issues where customers reported poor network...
Date: 04/19/2011
How does a NIC inside a VM get a MAC address assigned?
Hi, If you add a NIC to a VM, it needs a MAC address that should be unique (at least in the network...
Date: 03/25/2011
What does "Enable heartbeat monitoring for the virtual machine" do ?
Hi, I've been asked this a couple of times, and thought it might be interesting to blog.. If you...
Date: 01/11/2011
A script to check the Integration Services Version on Hyper-V Host and Guests
Hi, Scripting time again! Really often, I need to check if the Integration Services Version of the...
Date: 10/11/2010
A powershell script which balances the load of Hyper-V VMs across all cluster nodes
Hi everyone, I run a 2 node cluster with Hyper-V. While debugging and testing, i often have to...
Date: 10/07/2010
When would I need to limit the processor features so that Quick or Live Migration is possible
Hi, Recently, I had some customers which could not Quick or Live Migrate their VMs in a Hyper-V...
Date: 07/22/2010
Error Message: The server encountered an error while creating “Name of the VM”
Recently, I worked on the below issue and though this might be worth to blog: On a Hyper-V Server,...
Date: 06/08/2010
Hyper-V: Live Migration Network Configuration Guide
Hi, we just release a guide on how to configure your Network Cards with Hyper-V...
Date: 02/26/2010
VHDTool - a must have.
This tool saved me lots of time. So I thought I point you to it:...
Date: 02/25/2010
Getting some more info about my .vhd and .avhd files.
I often have the need to get more info on the .vhd and .avhd (Snapshots or Differencing) files. I...
Date: 12/17/2009
Availability of Hotfix Rollup package for System Center Virtual Machine Manager 2008 R2
Update: Meanwhile there is a further Februar Rollup available: Description of the System Center...
Date: 12/17/2009
Quick or Live Migration may fail after you used Migrate Storage
SCVMM R2 has a nice new feature to migrate the storage location of a VM. The move is done on one...
Date: 11/13/2009
Installing SCVMM on a host with a name containing "-SCVMM-" fails with Error 257
Well, the title says it all. If the host you're trying to install SCVMM on has a name that contains...
Date: 11/05/2009
SCVMM 2008 Error (2927) A Hardware Management error has occurred trying to contact server
I had a large customer where some Host occasionally where reported with an Error during Host...
Date: 10/23/2009
BITS Compact Server cannot process the request for the following URL in the %1 URL group: %2. The request failed in step %3 with the following error: %4.
Hi, Windows Server 2008 R2 has a new feature component: Bits Compact Server! This is a lightweight...
Date: 10/20/2009
After installing Hyper-V Integration Services on the next reboot the VM displays BSOD 0x0000007B
Hi, Recently, I had some customers with VMs they just P2V'ed, or even had them running already on...
Date: 10/07/2009
My Recommended Fix List Post SP2
While Service Pack 2 contains many fixes that I recommended earlier, I intend to post here some...
Date: 07/17/2009
SCVMM Service may take up lots of memory
In a large SCVMM environment we noticed that the SCVMM Service (vmmservice.exe) allocates lots of...
Date: 05/25/2009
Availability of Hotifx Rollup package for System Center Virtual Machine Manager 2008
Recently we published a Rollup for System Center Virtual Machine Manager 2008 on Microsoft Update....
Date: 04/17/2009
Virtual Machine "Disappears" from Hyper-V Manager or changes to a VM cannot be applied
Recently I saw some strange errors: - A complete VM was not listed in Hyper-V Manager anymore. -or-...
Date: 04/07/2009
During Quick Migration the Virtual Machine Configuration resource stays in "Offline Pending"
I have seen this at a customer site. Whenver one VM was moved from one node to the other, it took...
Date: 03/25/2009
SCVMM P2V conversion fails during 'Make operating system virtualizable'
You may run into the problem that a P2V conversion to a machine with an IBM SAN using an older...
Date: 03/17/2009
A Windows 2000 VM may perform badly and consume high CPU
Just had a couple of issues where a Windows 2000 VM was apparently slow and consumed >80% CPU....
Date: 03/17/2009
SCVMM error 3217, SP2.cab missing
Today, an issue with System Center Virtual Machine Manager. If you try to convert a physical machine...
Date: 02/06/2009
Comprehensive List of Hyper-V Updates
I'm often getting asked for paritcular fixes required for Hyper-V . There is a comprehensive list...
Date: 02/02/2009
Howto manually add a VM Configuration to Hyper-V
With Hyper-V you cannot simply „Add“ a configuration file to your Hyper-V machine as you...
Date: 12/19/2008
Error Applying New Virtual Network Changes
When you create a new switch and assign it a pyhsical Network card, you might see this error. Error...
Date: 12/18/2008
E-Book on MS Virtualization Solutions
Just got a link to this free edition. It covers Hyper-V, SCVMM, MED-V and more. I browsed the...
Date: 12/18/2008
My modifications to InitialStore.xml don't seem to take effect
I wanted to allow a colleague access to my Hyper-V. Following the instructions at...
Date: 12/08/2008
HowTo monitor the NIC used by a Virtual Machine in a Hyper-V cluster
Recently I had a customer with the following problem: Hyper-V Host Clusters don't support NIC...
Date: 12/05/2008
A clustered Virtual Machine may end up on the wrong switch after move
When you have a VM clustered on multiple Hyper-V Hosts it is necessary that the machine...
Date: 11/21/2008
When do I use the Legacy Network Apater
When you configure a new VM you have the option to add a "Network Adapter" or a "Legacy Network...
Date: 09/25/2008