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Virtualization: Blog Post

Scale-up Virtualization with Windows Server 2012 Release Candidate

Latest version of Hyper-V offers substantial improvements in Host resources and VM density

Hyper-V in Windows Server 2008 R2 supported configuring virtual machines with a maximum of four virtual processors and up to 64 GB of memory. However, many IT organizations increasingly want to use virtualization when they deploy mission-critical, tier-1 business applications into their private cloud datacenter fabric. Large, demanding workloads such as online transaction processing (OLTP) databases and online transaction analysis (OLTA) solutions typically run on systems with 16 or more processors and can demand large amounts of memory. For this class of workloads, more virtual processors and larger amounts of virtual machine memory can be a core requirement.

In response to these increased demands, Microsoft has greatly expanded support for Hyper-V host processors and memory in Windows Server 2012 RC . New features include support for up to 32 virtual processors and 1TB of memory for Hyper-V guests, a new VHDX virtual hard disk format with larger disk capacity of up to 64 TB and support for 512e/4kb sector disks, and additional virtual disk resiliency provided through a new logged design. These features help ensure that the virtualization infrastructure can support the configuration of large, high-performance virtual machines to support workloads that might need to scale up significantly or in environments where a smaller number of high capacity hypervisor hosts is desirable to reduce operational costs.

These however, aren’t the only improvements in Windows Server 2012 RC Hyper-V, as you can see from the table below:

Windows Server 2012 Hyper-V ScaleUp Improvements

Significant improvements have been made across the board, with Hyper-V now supporting increased cluster sizes, a significantly higher number of active virtual machines per host, and additionally, more advanced performance features such as in-guest Non-Uniform Memory Access (NUMA). This ensures customers can achieve the highest levels of scalability, performance and density for their mission-critical workloads.

To download Windows Server 2012 Release Candidate and learn about the technical details on the virtualization improvements in this latest release of the Windows Server operating system, please see: http://aka.ms/NewsWS2012RC

More Stories By Keith Mayer

Keith Mayer is a Technical Evangelist at Microsoft focused on Windows Infrastructure, Data Center Virtualization, Systems Management and Private Cloud. Keith has over 17 years of experience as a technical leader of complex IT projects, in diverse roles, such as Network Engineer, IT Manager, Technical Instructor and Consultant. He has consulted and trained thousands of IT professionals worldwide on the design and implementation of enterprise technology solutions.

Keith is currently certified on several Microsoft technologies, including System Center, Hyper-V, Windows, Windows Server, SharePoint and Exchange. He also holds other industry certifications from IBM, Cisco, Citrix, HP, CheckPoint, CompTIA and Interwoven.

Keith is the author of the IT Pros ROCK! Blog on Microsoft TechNet, voted as one of the Top 50 "Must Read" IT Blogs.

Keith also manages the Windows Server 2012 "Early Experts" Challenge - a FREE online study group for IT Pros interested in studying and preparing for certification on Windows Server 2012. Join us and become the next "Early Expert"!