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  • Blog Post: DCDIAG Advertising test with error 81

    David Everett here again with an interesting issue that causes the Advertising test in DCdiag.exe to fail when verifying the role of a global catalog (GC). A customer called Microsoft Product Support to determine why the Advertising test in dcdiag.exe was reporting that the global catalog role was...
  • Blog Post: Forced Demotion of a Windows Server 2008 Core Domain Controller

    Ned here again. Today's post is short and sweet, but when you need this one you will need it fast and we don't have this publically documented anywhere on TechNet (yet). Since Windows 2000 SP4, it has been possible to forcibly demote Domain Controllers using the DCPROMO /FORCEREMOVAL command. You...
  • Blog Post: Hard Disk Failure Error Messages in AD Replication?

    Hi everyone, David Beach here today. Here’s a fun AD Replication error from Windows Server 2003: Sitename\DCName via RPC DC object GUID: abc12345-6789-0123-4567-890abcdefabc Last attempt @ 2011-03-15 12:15:15 failed, result 1127 (0x467): While accessing the hard disk, a disk operation failed...
  • Blog Post: Friday Mail Sack: Wahoo Edition

    Hi folks, Ned here again. This week we talk GUI metadata cleanup, your useless manager (attributes), USMT abandonment and weight issues, the meaning of the DFSR nothing state, and the usual “other stuff.” Metadata cleanup when moving DCs The Manager and ManagedBy attributes Overriding...
  • Blog Post: DC’s and VM’s – Avoiding the Do-Over

    Hello everyone, Mark from DS again. With more and more companies using virtualization, such as Microsoft Virtual Server, Server 2008 Hyper-V or VMWare, in their environments these days you may end up in the following situation I recently worked on: 1) Customer wanted to roll back one of his DC’s in his...
  • Blog Post: How to Virtualize Active Directory Domain Controllers (Part 1)

    Hello Everyone, this is Shravan from the Active Directory team and Jason from the System Center VMM team here at Microsoft. We will be discussing a scenario that comes up often: how to migrate active directory domain controllers to a virtualized system. Why Now? Reduce Cost! Reduce Cost! Reduce...
  • Blog Post: What is the Impact of Upgrading the Domain or Forest Functional Level?

    Hello all, Jonathan here again. Today, I want to address a question that we see regularly. As customers upgrade Active Directory, and they inevitably reach the point where they are ready to change the Domain or Forest Functional Level, they sometimes become fraught. Why is this necessary? What does this...