WindowsServer2008 virtual technology (zz)

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Virtualization technology is a method of allocation of computing resources, it will be different levels — hardware, software, data, network and storage — separated.

WindowsServer 2008 includes the "server virtualization" role, it uses a very broad perspective, not just limited to server virtualization, cover-to-computer virtual virtual application also.

Server 2008 virtual technology (zz) "TITLE =" Windows Server 2008 virtual technology (zz) "/>

Now many people for Windows Server2008 virtualization technology applications concern, different companies of all sizes are already recognizing virtualization began as a change in the current scene.

Advantages of virtualization is that it runs exactly like a physical server, and end users at all.

In addition, in the same physical servers run multiple virtual machines (up to 15 to 20 units), you can save on hardware, data center space and energy consumption.

Now that when it comes to virtualization, had to mention Hyper-V.

Windows Server2008 "Hyper-V" new functionality to server virtualization technology integrated into the operating system. This improves the efficiency of virtualization technologies to provide better performance. Hyper-V technology to support server consolidation, support for new hardware running older operating systems and applications, as well as cross-platform migration application disaster recovery.

Establishment: Hyper-V

L management program (hypervisor): used to create different partitions, and the code of each virtualization instances will run on these partitions;

L virtualization stack and new virtualization I/O model: offers and Windows itself interactivity and and is created by a different partition of the interactive features;

L management program (hypervisor), the virtualization stack and new virtualization I/O model, three components are the order of the work;

L used server need equipment IntelVT-or AMD-V-enabled processors, Hyper-V can interact with the management procedure, the management program is a processor on a very small software;

L Hyper-V advantage is: you can reduce the machine's copy and save costs; can be on multiple customer cluster support; available on virtualization service host "hot swap" of resources; you can add multiple running Hyper-V component physical machine into a cluster, etc.;

If the reference to the virtual machine, I believe we must think of VMware and Virtual PC both virtual machine software.

Microsoft acquires VirtualPC this software development company, it will be Virtual PC integrated into the new server operating system. And after the improvement to Windows Servervirtualization (WSV), a complete platform in front of everyone.

Server 2008 virtual technology (zz) "TITLE =" Windows Server 2008 virtual technology (zz) "/>

Virtualization server WSV (Windows ServerVirtualization):

L WSV introduces and virtual machine storage hardware-related new features, supported guest OS to access memory.

The virtual machine's disk by path (Pass-Through DiskAccess) allows virtual machine directly to a writeable file system without using the VHD file.

L use disk through the path to the original VHD format compressed data can consist of a non-virtual system in the file system.

The storage configuration of additional options to increase the flexibility of WSV use scenarios.

L for WSV VMBus building in to the virtual machine with synthetic storage appliance controllers.

Synthetic storage device controller support each control that up 255VHDs, also supports each virtual machine controller unlimited number.

L specifies the virtual machine using virtual kernel, you can use up to eight cores;

L support memory Copy on Write function, you can significantly save memory;

L can create xuji of 64;

L support Linux, is a good way to run SUSE Linux;

L can achieve P2V (physical machines to virtual machines) of migration;

WSV CPU hardware requirements:

L support hardware virtualization, for example Intel VT or AMD T;

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L support 64 Technology;

L support hardware DEP technologies;

Combined with virtual technology and can free download of Windows Server 2008 beta 3, can be very easy to set up a test environment.

Server 2008 virtual technology (zz) "TITLE =" Windows Server 2008 virtual technology (zz) "/>

Installation of 64 of Windows Server 2008 RC0Enterprise basic steps:

L enter the installation directory, locate the subdirectory, run the WSV Windows6.0-KB939853-x64.msu and Windows6.0-KB939854-x64 respectively;

L need the WSV virtualization as a role added to Windows Server2008 system: Server Manager, select the Roles, click details in the form of the Add Roles, select "Windows ServerVirtualization";

L set some necessary configuration information, for example: Configuring virtual networks, etc., you are prompted to restart;

Although virtualization server is an outstanding product, though it will lack such as heat transfer such features, now it is the way to piece together, using the latest methods of virtualization — Hypervisor technology, server consolidation, energy efficiency, enhanced features and more simple management and deployment, to turn virtualization server and virtual host service has tangible benefits.

With the launch of WindowsServer 2008 as well as the maturity of the 64-bit multi-core servers, it will also be on board the new top model of the data center.