Windows Server 8 virtual machines will help you build private clouds of greater scale by supporting (at least…) 16 virtual processors fully loaded with business critical workloads like SQL Server.  Then we show you how you can deliver improved fault tolerance and flexibility, without the added tax or complexity of additional hardware, tools and software licenses, by using the new built-in Hyper-V Replica feature.  All it takes is a few clicks, a network connection and Windows Server 8.

Watch this Online video presentation and demo.

Source: http://blogs.technet.com/b/virtualization/archive/2011/07/18/windows-server-8-sneak-preview.aspx