Hyper-V Rollup fixes Clock_WatchDog_Timeout and MEMORY_MANAGEMENT stop errors with newer Intel CPUs

Some more recent Hyper-V processor performance updates released by Intel were not anticipated by Windows Server 2008 R2 and require the following updates. People who were experiencing this problem may have used workarounds to disable ACPI functionality thereby reducing the performance advantages of these newer processors. I am writing this post to raise awareness that the workarounds can be undone after the update is installed restoring the performance of more recent Intel processors. The issues described in KB2264080 are resolved by the rollup package which is automatically available through Windows update More information: For more information, click the following article … Continue reading Hyper-V Rollup fixes Clock_WatchDog_Timeout and MEMORY_MANAGEMENT stop errors with newer Intel CPUs

Dynamic Memory for Hyper-V How To – Sp1 for Windows 7 and 2008 R2

Service Pack 1 for Windows 7 and Windows 2008 R2 released to the public and they are in the wild. Perhaps the most interesting and sought after aspect is Dynamic Memory for Hyper-V. This post sheds some limelight on a whitepaper and extracts some key aspects. The document can be found here: http://download.microsoft.com/download/E/0/5/E05DF049-8220-4AEE-818B-786ADD9B434E/Implementing_and_Configuring_Dynamic_Memory.docx Download Windows 7 and Windows Server 2008 R2 Service Pack 1 (SP1) Beta http://technet.microsoft.com/en-gb/evalcenter/ff183870.aspx Executive Summary Dynamic Memory is a new feature of Hyper-V™ introduced in Service Pack 1 for Windows Server® 2008 R2 that enables Hyper-V hosts to dynamically adjust the amount of memory available to … Continue reading Dynamic Memory for Hyper-V How To – Sp1 for Windows 7 and 2008 R2

System Requirements for creating a test environment using Microsoft Hyper-V Server 2008 R2

There are a few areas which catch the us off guard when we plan to create a test environment. If you are going to repurpose hardware make sure you review this Microsoft Hyper-V Server 2008 R2 information to make sure you have the required hardware and software. Microsoft Official System Requirements Supported Operating Systems: A list of supported guest operating systems can be found here. Processor: x64 compatible processor with Intel VT or AMD-V technology enabled. Hardware Data Execution Prevention (DEP), specifically Intel XD bit (execute disable bit) or AMD NX bit (no execute bit), must be available and enabled. … Continue reading System Requirements for creating a test environment using Microsoft Hyper-V Server 2008 R2

Hyper-V 2008 R2 – Gotcha #1 – How to install Windows Server 2003 SP2 without a network card

Well I am deep into using Hyper-V R2 and I have probably forgotten a dozen things that caught me off guard at the beginning. I have resolved to just blog about them as they come up rather that put them in order of importance. In order for Hyper-V 2008 R2 Integration services to be installed on Windows Server 2003, SP2 needs to be installed. Now in most circustances this would not be a problem because you could use slipstreamimng to make another ISO image with the SP2 or SP3 install files. For more information on slip streamimng look here: How … Continue reading Hyper-V 2008 R2 – Gotcha #1 – How to install Windows Server 2003 SP2 without a network card

Hyper-V: Upgrade to Windows Server 2008 R2 from Windows Server 2008 with Hyper-V

In the following post I will describe three methods for upgrading from Windows Server R2 from Windows Server 2008 with Hyper-V. The methods described here are covered in MS Support KB 957256. After listing the methods I will describe why I prefer one of the methods. Before you upgrade. The upgrade process is not complex however you need to be careful. An important first step is to bring all of your virtual machines into a single state. You should review each virtual machine and establish a clean VM to be migrated. This VM must be in a shut down state. … Continue reading Hyper-V: Upgrade to Windows Server 2008 R2 from Windows Server 2008 with Hyper-V

Best Kept Secret – VHD Native Support in Server 2008 R2 and Windows 7

Have you seen this? WOW. Native support for VHD disks offers huge potential. Think about creating Dual and Tripple boot systems with everything containted in one file per OS. Think about Back up to VHD… think about mounting VHDs for native read write in an OS and then sharing them with a Virtualized OS. This about syspreping an imaged OS for use across your network! Think about it and tell me you are not trying to reattach your jaw,,, Big Secret… now you know. Jeff LoucksAvailable Technology

Hyper-V R2 Video – Issac Roybal

  Issac Roybal is the Product Manager for Hyper-V and spent a few minutes discussing some very late breaking features in Hyper-V coming with the Windows Server 2008 R2 RC release including changes to the number of supported cores as well as an extremely cool enhancement to the new Live Migration feature. http://www.youtube.com/watch?v=-2r9oP_QK0g Jeff LoucksAvailable Technology

Hyper-V and Symbolic Links

 Hyper-V Meta data is stored in the following folder: %SYSTEMDRIVE%\ProgramData\Microsoft\Windows\Hyper-V\Virtual Machines\ If you open the directory you will see Symlinks to your virtual machine files. If ever the Hyper-V console loses track of your Virtual Machine data you might be able to tell Hyper_V where to look by reinserting the metadata. The following syntax must be run from the command prompt in the system32 folder. mklink “%SYSTEMDRIVE%\ProgramData\Microsoft\Windows\Hyper-V\Virtual Machines\GUIDMachineFile.xml” “c:\ClusterStorage\Volume1\VirtualMachineName\Virtual MachinesGUIDMachineFile.xml” Example mklink “%SYSTEMDRIVE%\ProgramData\Microsoft\Windows\Hyper-V\Virtual Machines\4DD127D2-8F04-4B39-85A9-EA679487A9BF.xml” “c:\ClusterStorage\Volume1\JeffVM\Virtual Machines\4DD127D2-8F04-4B39-85A9-EA679487A9BF.xml”  Background Symbolic link From Wikipedia, the free encyclopedia Jump to: navigation, search Not to be confused with SYmbolic LinK (SYLK), a Microsoft Office file … Continue reading Hyper-V and Symbolic Links

The Numbers: Hyper-V R2 and Dynamically Expanding Storage Performance

The Virtualization team is reporting 87% of native performance when using Dynamically expanding drives. A number of MVPs were emailing today about best practices for High Availability using Hyper-V and Clustered Shared Volumes. A great topics in and of itself but one that I will bring forward more extensive information in the near future. A side topic came up. Oliver Sommer, respected MVP from Germany, introduced me to the increased performance of Dynamic Expanding drives in Hyper-V R2. Now this should not be confused with dynamic versus basic drive formats. This is dynamically Expanding Storage versus Fixed storage in Hyper-V. There … Continue reading The Numbers: Hyper-V R2 and Dynamically Expanding Storage Performance