Using a Read Only Domain Controller as a Host in SCVMM 2008

Article ID: 975113 - View products that this article applies to.
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Source: Microsoft Support
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RAPID PUBLISHING ARTICLES PROVIDE INFORMATION DIRECTLY FROM WITHIN THE MICROSOFT SUPPORT ORGANIZATION. THE INFORMATION CONTAINED HEREIN IS CREATED IN RESPONSE TO EMERGING OR UNIQUE TOPICS, OR IS INTENDED SUPPLEMENT OTHER KNOWLEDGE BASE INFORMATION.
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Symptom



A Read Only Domain Controller (RODC) can only be used as a Host if it was already a Host prior to being promoted. If a RODC needs to be used as a Host and was not previously managed by SCVMM, it will have to be demoted to a member server and made a managed Host prior to promotion back to RODC.

Important: Although a Read Only Domain Controller can be used as Host in SCVMM, this is not the recommended usage of a Read Only Domain Controller.

Requirements

  • System Center Virtual Machine Manager 2008 or 2008 R2
  • A Host machine that was added to SCVMM via the Admin Console-NOT manual installation of the VMMAgent.
  • VMMServer Computer Account in BUILTIN\Administrators group in Active Directory
    • Created when Host is added via SCVMM Admin Console
  • Virtual Machine Manager Servers local group on Host
    • Created when Host is added via SCVMM Admin Console
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Resolution

  1. If the server is currently a RODC, it must be demoted to a member server via DCPROMO.
  2. Add the member server to SCVMM via the Admin Console. You must not install the VMMAgent manually or necessary groups will not be created.
  3. Once the member server can be managed by SCVMM, proceed with the next steps.
  4. Log onto a Domain Controller and go to Active Directory Users and Computers.
  5. Add the VMM Server Computer Account to the Built-In Administrators Group in Active Directory. VMM Server=AP2118514 in this example.
  6. On the member server, START>RUN>DCPROMO.
  7. Follow the wizard, and select Read Only Domain Controller as an option, leaving DNS and Global Catalog checked.
  8. After the DCPROMO wizard completes , allow the reboot to complete.
  9. On the RODC, under CONTROL PANEL>WINDOWS FIREWALL, clicked on “Allow a Program through Windows Firewall”.
    • Make sure these are checked:
      • Hyper-V
      • Hyper-V Management Clients
      • Windows Management Instrumentation (WMI)
      • Windows Remote Management
  10. On the SCVMM Admin Console, selected the host (now an RODC) and selected REFRESH from the ACTION panel. Action should complete successfully.
  11. Created a new VM on the host as a test. Action should complete successfully.


Note: If the steps above do not work, demote the server to a member server and start over. This time, after Step 7, on the “Delegation of RODC Installation and Administrators” section of the wizard, set BUILTIN\Administrators as the group.

Keywords: SCVMM, RODC, Read Only Domain Controller, Hosts
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More Information



For more information about what is a Read Only Domain Controller, please visit the following Microsoft Web site:

http://technet.microsoft.com/en-us/library/cc732801(WS.10).aspx
(http://technet.microsoft.com/en-us/library/cc732801(WS.10).aspx)
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Properties

Article ID: 975113 - Last Review: August 28, 2009 - Revision: 1.0
APPLIES TO
  • Microsoft System Center Virtual Machine Manager 2008
  • Microsoft System Center Virtual Machine Manager 2008 R2 Workgroup Edition, when used with:
    • Windows Server 2008 R2 Datacenter
    • Windows Server 2008 R2 Enterprise
    • Windows Server 2008 R2 Standard
    • Windows Server 2008 Datacenter
    • Windows Server 2008 Enterprise
    • Windows Server 2008 Standard
Keywords: 
kbrapidpub kbnomt KB975113
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