virtual machine (VM) - simple - snapshot/image
One of the best features about running a virtual machine is the ability to snapshot/image a running VM so that you can revert back to it in case of a misconfiguration or other issue that would be difficult to recover from.
This is also a great non-intrusive way to backup machines without pegging CPU cycles (driving up cloud hosting costs).
I was able to do this with VMs running in Rackspace cloud and I believe other cloud hosting providers allow it. Why not Azure? It would be very important.
Try using "Ahsay software" It actually gives backup . i am using it from long time and really satisfied using it. Ahsay Backup Software supports backing up Microsoft Exchange Server,Microsoft SQL Server, VMware, Hyper-V, and other databases.