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Hyper-V Tips Update

Hyper-V how to switch VMs to full screen, taking VM screen shots and using a quick way to enter lengthy product keys in VMs plus other useful tips.
Robert Larson photo

Difference Disk Chain Length in Hyper-V R2

In Hyper-V R1, you could have a maximum of 50 difference disks in a parent-child chain. This was not typically a problem unless you heavily used snapshots. Hyper-V R2 has expanded the number of supported difference disks in a chain to 1024. This should satisfy even the most heavy snapshot users.

Note the performance of the difference disk read/write has also improved. See the following whitepaper for more details

For more Hyper-V tips please visit Virtualization Admin Knowledge Base

ISCSI configuration on server core

When Microsoft released Windows Server 2008 R2, they helped all of the command line challenged ITPros by adding the iSCSI control panel applet. To launch the control panel applet, type ISCSICPL.EXE at a cmd prompt. Then use it just like you would on a full GUI version of Windows Server.

For more Hyper-V tips please visit Virtualization Admin Knowledge Base

Easy Screen Shots of VMs

Need to capture screen shots of your virtual machine for documentation? In Hyper-V you can do this directly from the VMConnect console. While the VMconnect console is running all you have to do is click on the VMConnect console menu option called Clipboard and select the "Capture Screen" option. This will capture the entire video window of the VMConnect screen and place is in the clipboard buffer. Just paste it where you need it in your document or paste it into PAINT and save it to a file for later use.

For more Hyper-V tips please visit Virtualization Admin Knowledge Base

Switching a VM to Full Screen

Want to view a VM in full screen mode so it looks like it is the OS or application that is running on your machine? If you are using the VMConnect tool built into Hyper-V you would click the View menu option, then select Full Screen. You can also just press CTRL-ALT-BREAK to toggle the mode. 

Note on most laptops you will need to press CTRL-ALT-FN-BREAK because the break key requires pressing the Function key. If you do not have a key labeled BREAK, then try the key labeled PAUSE.

For more Hyper-V tips please visit Virtualization Admin Knowledge Base

Quick way to enter those long product keys into a VM

Do you use your MSDN subscription for your lab VMs? Are you tired of typing in the product key for the OS install screen by hand? How about if you could copy and paste that key...well there is a way.

  1. Go to where the product key is listed in MSDN or where you store the key
  2. Copy the product key
  3. In the VMConnect window of the VM you want to paste the key, select the Clipboard menu option, and then select the type clipboard text option. This will type the text in the clipboard buffer like you were typing it yourself in the VM.
  4. You can also place your cursor in the VM window and press CTRL-V

For more Hyper-V tips please visit Virtualization Admin Knowledge Base

Do I need to install Integration Services in Windows 7 or Windows Server 2008 R2?

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Actually you do not need to install the integration services in Windows 7 or Windows Server 2008 R2 because they shipped with the R2 edition of integration services already integrated into the drive store. Now when a new version of Integration services are available as part of a hotfix or service pack, you will need to update them at that point. Until then do not worrry about it.

For more Hyper-V tips please visit Virtualization Admin Knowledge Base

About Robert Larson

Robert Larson photo Robert Larson is the co-author of the Microsoft Virtual Server 2005 R2 Resource Kit, and the upcoming Microsoft Windows Server 2008 Hyper-V Resource kit, both published by Microsoft Press. Robert has over 20 years experience in the engineering and IT field. Currently an architect with Microsoft Consulting Services, Robert focuses on helping customers design and deploy optimized data center and server infrastructures using physical and virtual approaches. Robert has been working with various virtualization technologies for over 4 years and is a regular speaker at Microsoft TechEd conferences in the US and Europe on the Microsoft virtualization stack. Robert has also written whitepapers and delivered webcasts on virtualization technologies. You can visit Robert's blog for more information.

Click here for Robert Larson's section.

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