IT 221 REPORT #1
HYPER V FOR WINDOWS SERVER 2008

The Hyper V role enables you to create and manage a virtualized server computing environment by using a technology that is part of Windows Server 2008. The improvements to Hyper-V include new live migration functionality, support for dynamic virtual machine storage, and enhancements to processor and networking support.
Live migration functionality allows you to transparently move running virtual machines from one node of the failover cluster to another node in the same cluster without a dropped network connection or perceived downtime. Live migration requires the failover clustering role to be added and configured on the servers running Hyper-V. In addition, failover clustering requires shared storage for the cluster nodes. This can include an iSCSI or Fiber-Channel Storage Area Network. All virtual machines are stored in the shared storage area, and the running virtual machine state is managed by one of the nodes. On a given server running Hyper-V, only one live migration (to or from the server) can be in progress at a given time. This means that you cannot use live migration to move multiple virtual machines simultaneously. Dynamic virtual machine storage improves the virtual machine storage which includes support for hot plug-in and hot removal of the storage on a SCSI controller of the virtual machine. By supporting the addition or removal of virtual hard disks and physical disks while a virtual machine is running, it is possible to quickly reconfigure virtual machines to meet changing requirements. Hot plug-in and removal of storage requires the installation of Hyper-V integration services (included in Windows Server 2008 R2) on the guest operating system. Enhanced processor support can now have up to 64 physical processor cores. The increased processor support makes it possible to run even more demanding workloads on