HP Sizer for Microsoft Hyper-V 2008 R2


The HP Sizer for Microsoft Hyper-V 2008 R2 is an automated, downloadable tool that provides quick and helpful sizing guidance for “best-fit” HP server and storage configurations running in a Hyper-V R2 environment. The tool is intended to assist with the planning of a Hyper-V R2 virtual server deployment project. It enables the user to quickly compare different solution configurations and produces a customizable server and storage solution complete with a detail Bill of Materials (BOM) that includes part numbers and prices.

The HP Sizer for Microsoft Hyper-V 2008 R2 allows users to create new solutions, open already existing solutions, or use other types of performance data collecting tools, such as the Microsoft Assessment and Planning tool (MAP), to build rich Hyper-V R2 configurations based on HP server and storage technology. The tool allows rapid comparison of Hyper-V R2 characterizations using various HP server and storage choices.

HP Sizer for Microsoft Hyper-V 2008 R2

Download details: FIM 2010 RC1 Demo Hyper-V VHD


This download consists of a Hyper-V-based virtual hard disk image that contains a pre-installed demonstration version of Microsoft® Forefront (TM) Identity Manager (FIM) 2010 RC1. The image includes all components needed to experience the full integration of FIM 2010 with Active Directory, Microsoft Exchange Server 2007 and Microsoft Outlook 2007.
The image uses evaluation software and will only continue to work as expected until March, 2010.

Download details: FIM 2010 RC1 Demo Hyper-V VHD

Ask the Core Team : Top Issues for Microsoft Support for Windows Server 2008 Hyper-V


Top Issues for Microsoft Support for Windows Server 2008 Hyper-V

Hyper-V Beta released as part Windows Server 2008. The final release of Hyper-V happened shortly after the Windows Server 2008 release and can be downloaded here. After a few months of supporting customers, we now have enough case data to report on the top issues being reported for Hyper-V. The issues are categorized below with the top issue(s) in each category listed with possible resolutions and additional comments as needed. These may change as time passes, but as of this post, this is how we see it here in CORE. As always, we welcome your comments.


Issue #1

Customers looking for Hyper-V documentation.

Resolution: Information is provided on the Microsoft Hyper-V TechNet Library which includes links to several Product Team blogs. Additionally, the Microsoft Virtualization site contains information that can be used to get a Hyper-V based solution up and running quickly.

Issue #2

How to migrate virtual machines from Virtual Server 2005 to Hyper-V?

Resolution: The CORE Team blog provides tips and suggestions to help with the migration process.

Installation Issues

Issue #1

System hangs on restart at "Configuring Updates Stage 3 of 3" after the Hyper-V role is enabled, disabled, or updated.

Cause: HP Network Configuration Utility.

Resolution: Perform the steps documented in KB950792.

Issue #2

After the Hyper-V role is installed, a virtual machine fails to start with the following error:

The virtual machine could not be started because the hypervisor is not running

Cause: Hardware virtualization or Data Execution Prevention (DEP) was not enabled in the BIOS.

Resolution: Enable Hardware virtualization or DEP in the BIOS. In some cases, the server must be physically shutdown in order for the BIOS settings to take effect.

Virtual Devices\Drivers

Issue #1

A Synthetic NIC was listed as an unknown device in device manager.

Cause: Integration Components were not installed.

Resolution: Install Integration Components package in the VM.

Issue #2

Unable to associate the virtual COM port to a physical COM port.

Cause: By design.

Issue #3

Dynamic disks attached to the SCSI controller in a Windows Server 2003 virtual machine show as Offline on restart.

Cause: Storsvc is set to the incorrect start value in the registry.

Resolution: Perform the following step in the Guest OS registry:

Under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\storvsc

Change the "Start" value from 3 to 0.

Additional Comment: This has been fixed in Windows Server 2008 SP2.

Integration Components

Issue #1

Attempting to install the Integration Components in a Windows Server 2003 virtual machine fails with the following error:

Unsupported Guest OS
An error has occurred: The specified program requires a newer version of Windows

Cause: Service Pack 2 for Windows Server 2003 wasn’t installed in the virtual machine. You can hit this error for other OS’ that don’t have the appropriate service pack installed (Vista, Windows XP, etc..).

Resolution: Install SP2 in the Windows Server 2003 VM before installing the integration components.

Virtual Machine State and Settings

Issue #1

Virtual machines show a state of "Paused-Critical" in the Hyper-V Management Console

Cause: Lack of free disk space on the volume hosting the .vhd or .avhd files.

Resolution: Free up disk space on the volume hosting the .vhd or .avhd files.

Issue #2

When you attempt to create or start a virtual machine, you receive the following error:

The requested operation cannot be performed on a file with a user-mapped section open. (0x800704C8)

Cause: This issue can be caused by antivirus software that is installed in the parent partition and the real-time scanning component is configured to monitor files used by Hyper-V.

Resolution: Configure the real-time scanning component within the antivirus software to exclude the following files and directories:

  • Default virtual machine configuration directory (C:\ProgramData\Microsoft\Windows\Hyper-V)
  • Custom virtual machine configuration directories
  • Default virtual hard disk directory (C:\Users\Public\Documents\Hyper-V\Virtual Hard Disks)
  • Custom virtual hard disk directories
  • Snapshot directories
  • Vmms.exe
  • Vmwp.exe

Additional Comment: A KB article is forthcoming.

High Availability (Failover Clustering)

Issue #1

Virtual machine settings that are changed on one node in a Failover Cluster are not present when the VM is moved to another node.

Cause: The 'Refresh virtual machine configuration' option in the Failover Cluster Management interface was not used prior to moving the VM to another node in the cluster.

Resolution: When virtual machine settings are changed in a VM that’s running in a Failover Cluster, you must select the 'Refresh virtual machine configuration' option before the VM is moved to another node.

Additional Comment: We have a CORE blog which discusses this issue.

Issue #2

Customers looking for documentation on how to configure Hyper-V in a Failover Cluster.

Resolution: A step-by-step guide is available which covers how to configure Hyper-V in a Failover Cluster.

Hyper-V Snapshots

Issue #1

Snapshots associated with a VM are lost.

Cause: Parent VHD was expanded.

Resolution: Restore data from backup.

Additional Comments: There is a warning about this in the Edit Disk wizard which should not be ignored.

Issue #2

Virtual machine fails to boot.

Cause: Virtual machine had associated snapshots and to recover disk space the .avhd files were deleted.

Resolution: Restore data from backup.

Backup (Hyper-V VSS Writer)

Issue #1

How to backup virtual machines using Windows Server Backup (WSB).

Resolution: There is a CORE blog which discusses the steps needed to register the Hyper-V VSS writer with Windows Server Backup. A KB article has also been written.

Hyper-V Management Console

Issue #1

When remotely managing a Hyper-V Server and trying to perform a task such as creating a virtual machine or modifying virtual machine settings, you may receive the following error:

You might not have permission to perform this task

Cause: There are multiple causes for this error but the most common cause is that a beta version of the Hyper-V Management Console was being used to manage a Hyper-V server that was running the RTM build.

Resolution: Install the RTM version of the Hyper-V Management Console.

Additional Comment: There is a multi-part Product Group blog that discusses this error and provides several possible solutions which are scenario dependent.

Chuck Timon
Senior Escalation Engineer
Microsoft Enterprise Platforms Support

Ask the Core Team : Top Issues for Microsoft Support for Windows Server 2008 Hyper-V

The New Virtualization Community Forums…

After a bit of reorganizing and recognition, we’ve added a specific forum section to myITforum.com just for Virtualization products and technologies.  For those delving deep into virtualization and those just getting started, this are should help provide an area to ask questions and give answers and learn the technologies together.

Jump straight to the Virtualization Community forums using the following link:


If you know of any specific application areas we need to add to aid you in your daily tasks, let us know:  admin@myITforum.com

Top Hyper-V links…

Hyper-V HW & SW requirement:

Hyper-V RTM links:
. KB950050 – Windows Server 2008
. KB952627 – Windows Vista SP1
. Upgrading from Beta, RC0 or RC1?
. Guest operating system support

Hyper-V FAQ
. Installing on Server Core
. How to enable remote management
. Installing ICs without a mouse
. VMBus fails to load on a 2K8 x86 VM from Virtual Server
. Hyper-V, VS and VPC compatibility
. Publish Hyper-V through TS Gateway
. Slipstreaming Hyper-V (Server and Client)
. Hyper-V Networking Part 1
. Hyper-V Networking Part 2
. Why can't I boot from SCSI?
. Moving a VM from Virtual Server

Hot Downloads:
Microsoft Hyper-V Server License Terms
Windows Server 2008 Evaluation Virtual Hard Drive Images (for Hyper-V)
Step-by-Step Guide for Testing Hyper-V and Failover Clustering

Hyper-V Support policy:
. Microsoft server software and supported virtualization environments

. Using Hyper-V with Windows Small Business Server 2008