What's new in Windows Server 2012 R2
Tudor Damian - What's new in Hyper-V 2012 R2
Microsoft Virtual Academy Module 3 Creating and Managing Virtual Hard Disks, Virtual Machines, and Checkpoints.
Overview new feature enhancements coming in Windows Server 2012 R2 for Failover Clustering and availability Roadmap of incremental changes from Windows.
The Journey to the 2012 R2 wave The 2012 R2 wave File Based Storage Storage Management for Private Cloud Storage Spaces.