System Requirements: VMM Library Server

Atualizada: Agosto de 2009

Aplica-se a: Virtual Machine Manager 2008, Virtual Machine Manager 2008 R2, Virtual Machine Manager 2008 R2 SP1

For System Center Virtual Machine Manager (VMM) 2008 or VMM 2008 R2, the following are estimated system requirements for adding a VMM library server on a dedicated computer. If your computer does not meet the minimum requirements, you cannot install this component.

When you install the VMM server, Setup automatically adds the computer as the default library server, with a default library share. After setup is complete, you can add library shares to the default library server or add other library servers on separate computers. However, you cannot move or remove the default library server or the default library share.

For better performance, when you are managing more than 150 hosts, it is recommended that you add one or more remote computers as library servers and that you do not use the default library share on the VMM server.

Hardware Requirements

The minimum and recommended hardware requirements for a VMM library server vary depending on a number of factors, including but not limited to, the quantity and size of the following files that will be stored on the library server:

  • Virtual machine templates

  • Virtual hard disks

  • Virtual floppy disks

  • ISO images

  • Scripts

  • Hardware profiles

  • Guest operating system profiles

  • Stored virtual machines


Hardware component Minimum Recommended


Pentium 4, 2.8 GHz

Dual-Core 64-bit, 3.2 GHz or greater


2 GB

2 GB

Hard disk space

Varies based on the number and size of files stored

Varies based on the number and size of files stored

Software Requirements

The following software must be installed prior to adding a VMM library server.


Software requirement Notes

A supported operating system for the VMM library server

For more information, see Supported Operating Systems for VMM Components.

Windows Remote Management (WinRM) 1.1 or 2.0

WinRM 1.1 is included in Windows Server 2008, and by default, the WinRM service is set to start automatically.

WinRM 2.0 is included in Windows Server 2008 R2, and by default, the WinRM service is set to start automatically (delayed start).

  • If the WinRM service is disabled or set to start manually and if the service is stopped, Setup will display a warning during the prerequisites check.

  • If the WinRM service is set to start automatically but is stopped, the Setup Wizard automatically starts the service.

For Windows Server 2003 Service Pack 2 or Windows Server 2003 R2, you must install this software from the following site: WS-Management v1.1 (

For Windows Server 2003 R2, if you have previously enabled WinRM by using the Management and Monitoring Tools components group in Add/Remove Windows Components, it will not work with VMM. You must disable WinRM and then install the version of this software indicated here, which overwrites your existing version.

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