Operations Master Roles

Posted on 2006-04-18
Last Modified: 2012-06-21
We had a server fail with a hardware problem.

The server was a Active Directory Controller, with a global catalog. Most of the operations masters roles are on a different machine, and in fact they may all be on the other machine.

What I don't find anywhere is how to determine which roles are assigned to which machines.

I can find plenty of info on moving or seizing roles, but none on locating.

With the server down this is an urgent problem.
Question by:Tsdjws
    LVL 57

    Assisted Solution

    by:Pete Long
    Dumpfsmos.cmd: Dump FSMO Roles (XP, 2K and 2K3)

    Dump FSMO Roles (DumpFSMOs) is a command-line tool that displays the operations master (also known as flexible single master operations or FSMO) roles target server's domain and forest. Using Dump FSMO Roles you can find the names of the domain controllers that are performing operations master roles.
    There are five operation master roles. Two of them exist at the forest level, meaning that only one server fills that role for the entire forest. These are the schema master and the domain naming master. The remaining three roles exist at the domain level, meaning that one server fills that operations master role for every domain in the forest. These include RID master, primary domain controller emulator, and infrastructure master
    The following rights are required to run DumpFSMOs:
    •      Builtin\Administrator, to run the tool locally.
    •      Domain\Administrator or Enterprise\Administrator, to run the tool remotely.
    File Required
    •      Dumpfsmos.cmd
    Files included in the 2K3 Resource Kit
    Download and run rktools.exe then extract it to a folder.
    LVL 3

    Accepted Solution

    Hi there,

    The method above works.
    I use the NETDOM command:
    netdom query /domain:<domain> fsmo

    This is in the Resource Kit as well.

    Nice link you might find helpful:

    Hope that helps

    Author Comment

    Thanks, y'all.

    Answer 2 was a little easier...
    LVL 57

    Expert Comment

    by:Pete Long

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