I have a Windows Server 2012 R2 Std Server with Hyper-V installed on the physical host and 2 VM's. The first VM has the Essentials Role installed and is the domain controller. The second VM will be the application server. What is the best practice to ensure the physical host is backed up in addition to the 2 VM's. Would it be ok to install Windows Server Backup on the physical host and let that handle the backup?