New hotfix for Hyper-V has been recently published by Microsoft.
This KB adds ability to replicate VM groups and VMs that use shared VHDs! (I’ve not tested yet)
This KB describes an issue in which end users can’t track the shared disk ownership change if Guest clustered virtual machines (VMs) with shared disks are running Windows Server 2012 R2 or Windows Server 2012.
It’s important in scenarios such as replication tracking where the disk changes are tracked. This fix is applicable only for scenarios where the guest OS runs on the VM that’s running Windows Server 2012 R2 or Windows Server 2012.
After you apply this hotfix, you can track the ownership changes of the disk between Guest clustered VMs by using a CLUSCTL_GROUP_GET_LAST_MOVE_TIME cluster control code in a shared Virtual Hard Disk (VHD) guest cluster scenario.
To apply this hotfix, install update 2919355 in Windows Server 2012 R2.