There are also a handful of .

Besides multiple performance fixes, such as multipath I/O, we're going to see three big new features coming in 3.0. First, there's the new VHDX format. This new format supports sizes of up to 16 TB and is more resilient to corruption. Plus, the user defined metadata is already included and it gives admins support for larger block sizes to adapt to workload requirements. Another big one is Live Storage Migration, which moves any VHD files, saved states and other VM metadata from one machine to another without the need to take it offline. That's actually quite amazing since you won't experience downtime during servicing (such as SAN Upgrades or regular migrations). For that to work, the machine will automatically be mirrored and synchronized during runtime. Once the copy process is done, it will be deleted on the source machine. The VM keeps on running, with no interruption with the exception of one millisecond of network connectivity loss, when the adapter switches from one machine to another.

And Hyper-V replica allows you to seamlessly duplicate virtual machines (or just single VHDs) without the need to take the virtual machine offline. As Steven Sinofsky confirmed in his September 7 , there are very strict hardware requirements, so Hyper-V will solely run on the latest generation of Intel and AMD CPUs.

The last feature I want to mention is Hyper-V Network Virtualization. It allows you to run multiple virtual networks on physical network: each virtual network has the illusion of running as a physical fabric in and of itself.

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