Hyper-V - What is Hyper-v

License: Freeware
Operating Systems: Hyper-V Server 2008
Requirements: - x64 compatible processor with Intel VT or AMD-V technology enabled. Hardware Data Execution Prevention (DEP), specifically Intel XD bit (execute disable bit) or AMD NX bit (no execute bit), must be available and enabled. Minimum CPU speed : 1.4 GHz; Recommended: 2 GHz or faster
- Minimum: 1 GB RAM; Recommended: 2 GB RAM or greater
- Minimum: 8 GB; Recommended: 20 GB or greater
Date Update: Sep 5, 2011
Developer: MICROSOFT
RSS Feed: http://www.microsoft.com/en-us/news/rss/default.aspx
Download: Download Download Microsoft Hyper-V™ Server 2008 R2
Software Price: Buy Free download via the Microsoft Download Center

If you have recently started learning all about virtualization technology and the many different virtualization solutions that are available out there, then perhaps you are already familiar with something called Microsoft Hyper-V, which is just another virtualization solution that's available for you to try today. Microsoft's Hyper-V, or simply Hyper-V, is a virtualization technology solution that's available under the codename Viridian and used to go by the name Windows Server Virtualization. It can be described simply as a virtualization solution that is not unlike other systems in that it is uses a hypervisor and it falls under the x86-64 category. An x86-64 system is that which is more commonly known as a 64-bit system. These systems run on compatible 64-bit central processing units or CPUs and are more useful for server type applications compared to its 32-bit counterparts.

Hyper-V first was made available as beta software with certain 64-bit Windows Server 2008 installations. A final release version was subsequently made available through an automatic Windows Update on June 26, 2008. Since then, Hyper-V has been available freely in a stand-alone software version. Right now, it is available in an upgraded Release 2 (R2) status.

Hyper-V is actually Microsoft's answer to competing products such as those released by VMware Corporation in the desktop virtualization technology market. As you may already know, VMware Corporation is currently one of the most popular virtualization software makers out there, and it's only logical that the current overall market leader in desktop software, the maker of the world's most popular operating system itself, Microsoft, wants to compete and get its own share of the virtualization technology market.

Hyper-V Architecture - Virtual Network - Live Migration

Hyper-V Architecture

Virtual Network Live Migration

Click to see Screenshots

For additional documentation check this link

Why Hyper-V ?

Hyper-V was made with a simple goal in mind: to offer virtual environments to computer users who need them for whatever reason or application they deem necessary. One of Hyper-V's most important features is the fact that it supports partitions. That is, you can allocate a certain part of a hard drive, a partition, to the operating system that is currently in use. Hyper-V exists in a total of two different variations. First, there is the Windows Server 2008 R2 and Windows Server 2008 installable role. And then there is the stand-alone server version, formally known as the Microsoft Hyper-V Server 2008.

The idea of using partitions in Microsoft Hyper-V refers to the fact that this virtualization solution fully supports partition for inherent isolation. Once virtualized, a partition will not have any access whatsoever to the physical processor. Instead, all actions need to go through the hypervisor, although Hyper-V can use hardware acceleration to make things easier for all types of users.

Hyper-V requirements

The requirements for using Hyper-V as an installable role in Windows Server 2008 environments include the need for the host operating system to be either of two things. One is to be a 64-bit version of Windows Server 2008 and another is to be one of the following: Datacenter, Enterprise, or Standard editions of Windows Server 2008 R2. Installing it on Windows Server 2008 32-bit versions is not possible. Other requirements include a 64-bit processor, minimum 2GB of RAM, and hardware-assisted virtualization. Guest operating systems can use up to 4 processors per virtual machine, and support both 32-bit and 64-bit virtual machines.

As for the stand-alone version of Microsoft Hyper-V Server, it is not necessary or required to have a full installation of Windows Server 2008 or Windows Server 2008 R2. It can support up to a total of 64 virtual machines per individual system. It requires a minimum of 1GB RAM up to a maximum of 1TB, and minimum 8GB of available disk space; 20GB or greater is recommended.

Hyper-V versatility

Apart from Windows Server 2008 and Windows Server 2008 R2, other supported Guest operating systems include Windows Server 2003, Windows Server 2003 R2, Windows Vista, Windows 7 and certain versions of Linux. Some versions of Ubuntu Linux and Fedora 8/9 are reportedly able to run, however neither of those two Linux distributions are officially supported.

Like other virtualization solutions, Hyper-V comes with certain limitations such as the lack of built-in USB pass-through and DVD-writer support for guest operating systems, as well as graphics issues on the host operating system after installation. However, these limitations don’t take anything away from the fact that Hyper-V offers a very effective and cost-efficient solution for all of your virtualization needs.

Books you should read about Hyper-V

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