Hyper-V Console vs SCVMM，一些事情只能通过SCVMM来做，不能通过Hyper-V管理控制台来做

·       - Quick storage migration: This enables migration of a VM's storage both within the same host and across hosts while the VM is running, with minimal downtime.·       -  Live migration queuing: This lets you perform multiple live migrations without needing to keep track of other live migrations within the cluster.·        - Physical to virtual (P2V) conversion: The enhancements in R2 let you do the P2V conversion through a simple wizard, which uses an agent that gets pushed out to the physical machine to perform the conversion.·        - Other great features include Maintenance Mode, which automates the process of migrating VMs to other hosts for maintenance or upgrades, the improved SAN management, and increased third-party support.·         -You should also note that that you can use VMM to manage more than just your Hyper-V environment. You can also manage ESX hosts through VMware vCenter Server (VMM can manage multiple vCenter Servers). But it cannot manage Citrix Xen Server, although that capability may be coming soon.·         -Integration with SCOM to provide performance resource optimization, by using Performance and Resource Optimization (PRO) in System Center Virtual Machine Manager (VMM) 2008, VMM customers can tie specific System Center Operations Manager alerts to remediation actions in VMM. For example, PRO can load-balance virtual machines between physical hosts when specific thresholds are exceeded, or it can migrate virtual machines to a host on a different physical computer after a hardware failure.·         - Delegated Administration with User Roles, In VMM 2008, administrators control access to hosts through user roles. There are three user roles in VMM 2008: Administrator, Delegated Administrator, and Self-Service. The Administrator user role grants users administrative rights across the entire environment. The Delegated Administrator user role grants users administrative permissions within a scoped environment. The Self-Service user role determines what actions users can take on their own virtual machines using a Web interface: the Virtual Machine Manager Self-Service Portal. The Self-Service user role may be assigned a quota to limit the number of virtual machines the user can create.·         - Support for Self Service Portal which give the end users the ability to create and manage Vms using VMM SSP (web site)