Defining Basic Virtual Machine Configuration Parameters.pdf

Windows Server 2008 Hyper-V Virtual Machine Configuration

http://www.virtualizationadmin.com/articles-tutorials/microsoft-hyper-...

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Microsoft Hyper-V Articles

General

Windows Server 2008 Hyper-V Virtual Machine

Configuration

The virtual machine configuration parameters that you must define prior to creating

a new virtual machine, and the process to create and configure a new virtual

machine using the New Virtual Machine Wizard in Hyper-V Manager.

Published: Jul 09, 2009

Updated: Aug 11, 2009

Section: General

Author: Janique Carbone

Company: Infrastructor Group

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Windows Server 2008 Hyper-V Virtual Machine Configuration

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Defining Basic Virtual Machine Configuration Parameters

Before you create a new virtual machine (VM) using the Hyper-V Manager, it is crucial that you define these

essential parameters:

Virtual Machine Name

This is the name that is associated by default with the new virtual machine folder, as well as the new

virtual hard disk (VHD) that will contain the virtual machine operating system and data files. This is also

the virtual machine name that is displayed in the Hyper-V Manager console. You should develop a

naming convention that reflects the information that is required in your environment to quickly and

appropriately identify the new VM.

Virtual Machine Processor Allocation

This represents the number of virtual processors to allocate to the new virtual machine. This parameter

should take into consideration the requirements of the virtual machine guest operating system and hosted

applications, as well as those of other running virtual machines, and the host operating system. All of the

Microsoft Windows Server 2008 Hyper-V editions and Microsoft Hyper-V Server 2008 support a

maximum of 24 logical processors in a Hyper-V host (up to 4 physical processors, each with 6 cores), and

a maximum virtual machine allocation of 4 virtual processors. Although this is not used in the New

Virtual Machine Wizard, you must define this parameter to ensure that you create the new virtual

machine on a Hyper-V host with sufficient resources to support it.

Virtual Machine Memory Allocation

This represents the amount of memory to allocate to the new virtual machine. The memory allocation

should take into consideration the amount of RAM in the physical server in conjunction with the memory

requirements of the new guest operating system and hosted applications, as well as other running virtual

machines. Microsoft Hyper-V Server 2008 and Windows Server 2008 Standard Edition limit a virtual

machine memory allocation to 31 GB, while Microsoft Windows Server 2008 Enterprise and Datacenter

Edition allow a maximum memory allocation of 64 GB.

Virtual Hard Disk Size and Location

If you need to install a new guest operating system, you must define the size for a new IDE-based virtual

hard disk. In Hyper-V, IDE-based VHDs can support up to 2040 GB. Although Hyper-V also includes a

SCSI controller, it is a synthetic device (one that does not represent a physical counterpart) that cannot

be used to boot a VHD without an installed operating system. Unless you specify otherwise, a new virtual

hard disk is stored in the default virtual machine directory using the same name as the virtual machine

and a .vhd extension. If you intend to connect a pre-existing VHD to the new virtual machine, you must

define the virtual hard disk folder location and copy the VHD to it prior to creating the VM.

Virtual Network Connection

This represents the virtual network to connect to the new virtual machine. If you want to isolate the

virtual machine, you can choose not to connect the virtual network adapter to any virtual network.

Hyper-V allows connection multiple virtual networks using a combination of legacy and synthetic virtual

network adapters. However, the New Virtual Machine Wizard only provides the connection to a single

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Windows Server 2008 Hyper-V Virtual Machine Configuration

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virtual network.

Installation Method and Media

There are several methods available in Hyper-V to install a guest operating system in a new virtual

machine. You can use physical installation media in a connected CD/DVD-ROM drive mapped to a

virtual CD/DVD-ROM drive, an accessible ISO image file that contains a bootable image of a guest

operating system, a virtual floppy boot disk image, or a network-based installation.

Once you have defined these basic parameters, you are ready to create a virtual machine using the New Virtual

Machine Wizard available in Hyper-V Manager.

Starting the Hyper-V Manager

The Hyper-V Manager MMC is installed when the Hyper-V role is configured in a full installation of Microsoft

Windows Server 2008. It is the default graphical user interface that allows you to manage and configure

Hyper-V hosts and virtual machines. Through the Start menu, you can select the Hyper-V Manager from the

Administrative Tools menu as shown in Figure 1. In a default installation, you can also invoke it using the Start

menu Run option or from a command prompt by typing in c:\Program Files\Hyper-V\virtmgmt.msc.

Figure 1: Hyper-V Manager Administrative Tools Menu Option

As shown in Figure 2, the Hyper-V Manager console is divided into three sections. The left pane displays the

tree view of managed Hyper-V hosts. The center pane displays existing virtual machines and their state, as well

as a tree view of existing snapshots and a minimized view of the virtual machine console when a virtual

machine is selected. The right pane contains the list of actions available to manage the Hyper-V hosts and

virtual machines. The list of virtual machine actions is only displayed after a virtual machine is created or added

on the Hyper-V host.

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Figure 2: Hyper-V Manager Console

Creating a Virtual Machine Using the New Virtual Machine Wizard

The first step to create a new virtual machine is to select the New | Virtual Machine option from the Actions

pane, as shown in Figure 3. As a result, the New Virtual Machine Wizard is invoked and you can begin to enter

the basic virtual machine configuration information.

Figure 3: Invoking the New Virtual Machine Wizard in Hyper-V Manager

Figure 4 shows the Before You Begin dialog of the New Virtual Machine Wizard. This is the starting point from

which you can create a new virtual machine.

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Figure 4: New Virtual Machine Wizard in Hyper-V Manager

To continue the process, click Next in the Before you Begin dialog.

In the Specify Name and Location dialog, shown in Figure 5, enter the new virtual machine name in the Name

text box. Unless you specify otherwise, the virtual machine will be stored in the default configuration folder that

appears in the Location text box.

If you want to define a new location for the virtual machine folder, select the Store The Virtual Machine In A

Different Location check box, then type in a fully qualified path (for example, D:\Hyper-V VMs\Win2008). If

the folder does not exist, it will be created. It is worthwhile to take notice, as indicated in the dialog, that you

must select a storage location with sufficient free space if you plan on creating one or more snapshots for the

virtual machine.

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