At work, I’m working on “STUFF” that includes a hypervisor-based backup and replication solution for Hyper-V VMs. It’s not much of a secret, but you can check out all of that info here: http://go.veeam.com/v6-backup-replication [v6 Preview Materials]
I’ll admit it, coming at it from the VMware perspective required some rethinking. First of all, these backups and replications are executed without a checkpoint (SCVMM term or snapshot in Hyper-V talk). Once you get your head around Volume Shadow Copy Services (VSS), you’ll quickly see that a few techniques around leveraging shadow copies will be a very efficient way to move data for Hyper-V backups.
So, once I have those concepts in hand; I can see a very clean approach to performing these agentless Hyper-V backups and replications.
Stay tuned of course, but check out the v6 preview materials that I have linked above and follow me on Twitter for any news that may happen!!