Windows Server 2012 has a ton of new features. One new feature that may not seem so obviously important to VDI and RDS environments the Scale-Out File Servers. Scale-Out File Servers extended the clustering technology found in Windows Server 2008 and below by allowing active/active file servers for both high availability and scalability. Prior to Windows Server 2012, file server clusters could only function in an active/passive capacity for HA.
With Scale-Out File Server, all file shares are online on all nodes simultaneously. File shares associated with this type of clustered file server are called scale-out file shares. This is sometimes referred to as active-active.
VDI in Windows Server 2012 supports using Scale-Out File Server to store server application data. If file server high availability and scalability are important to you, we highly encourage you to check out the new Scale-Out File Server feature in Windows Server 2012, and take full advantage of it for your Windows Server 2012 VDI deployment!
I could have used this features years ago!