Hyper-V Enhancements in Windows Server 2012 R2

The recently released Microsoft Windows Server 2012 R2 operating system offers some important new enhancements to the Microsoft virtualization technology, Hyper-V. One of the best enhancements to Hyper-V is the increased support for Linux virtual machines. Specifically, Hyper-V adds support for remote replication of Linux virtual machines, the ability to reallocate memory resources and resize the virtual storage without requiring a reboot of the virtual machine. Also, backup software designed to work with Hyper-V can also back up Linux VMs.

Another new feature is the addition of Generation 2 virtual machines that replace the legacy hardware elements with the modern 64-bit architecture that operates on UEFI rather than BIOS. More information about Generation 2 virtual machines can be found here.

Finally, Hyper-V in Server 2012 R2 offers some additional performance enhancements. Replication between virtual servers is faster, and more frequent, and disaster recovery options have been added. Also, it’s now possible to assign QoS (quality of service) to prioritize disk access for virtual machines for disk-intensive servers like database servers.

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