VMM is a stand-alone server application for managing a virtual environment running Windows Server 2008 Hyper-V, Microsoft Virtual Server, and VMware. By using VMM, you can centrally manage physical and virtual machine infrastructures through a single console.
VMM 2008 features PRO, which extends the administrator-set rules and policies of System Center Operations Manager (SCOM) 2007 to VMM 2008. Based on the information collected by SCOM 2007, virtual machines can be distributed across host servers with the available resources.
You can also integrate VMM 2008 with System Center Data Protection Manager (DPM) to provide backup and recovery services for virtual machines. By using DPM, you can perform snapshot-based backups of virtual machines running Windows Server 2008 Hyper-V.