Q. I thought Hyper-V in Windows Server 2008 R2 allowed you to hot add and remove virtual storage, but the option isn't available in the settings of the virtual machine (VM). What's wrong?

A. Hot adding or removing of storage (VHD or pass through) is only available on virtual SCSI controllers, not on virtual IDE controllers. You won't be able to add or remove storage on the IDE controller of a running VM. Add a virtual SCSI controller to take advantage of hot addition and removal of storage.

Watch this video to learn more about Windows Server 2008 R2 clustering and virtualization

• How do I create a failover cluster in Windows Server 2008?
• Is a Windows Server 2003 and Windows Server 2008 mixed-cluster possible?
• How can I add disk resources to a Windows Server 2008 cluster from the command line?
• How do cluster shared volumes work in Windows Server 2008 R2?

• How to Manage Failover Clusters in Windows Server 2008
• Configure Windows Server 2008 Failover Clustering from the Command Line