View the current operations master role holders

Once an operations master role has been transferred, it should be verified that the transfer has occurred successfully throughout the domain. The change must be replicated to all relevant domain members in order to truly take effect.
To view the current operations master role holders, use Ntdsutil.exe with the roles option. This option displays a list of all current role holders.
Administrative Credentials
To perform this procedure, you must be logged on as a User or an Administrator.
To view the current operations master role holder
    1. Click Start, click Run, type ntdsutil, and then press ENTER.
    2. At the ntdsutil: prompt, type roles and press ENTER.
    3. At the fsmo maintenance: prompt, type connections and press ENTER.
    4. At the server connections: prompt, type connect to server servername (where servername is the name of the domain controller that belongs to the domain containing the operations masters).
    5. After receiving confirmation of the connection, type quit and press ENTER to exit this menu.
    6. At the fsmo maintenance: prompt, type select operation target and press ENTER.
    7. At the select operations target: prompt, type list roles for connected server and press ENTER.
The system responds with a list of the current roles and the Lightweight Directory Access Protocol (LDAP) name of the domain controllers currently assigned to host each role.
    8. Type quit and press ENTER to exit each prompt in Ntdsutil.exe. Type quit and press ENTER at the ntdsutil: prompt to close the window.