How to Determine the RID, PDC, and Infrastructure FSMO Holders of a Selected Domain
1. Click Start, click Run, type dsa.msc, and then click OK.
2. Right-click the selected Domain Object in the top left pane, and then click Operations Masters.
3. Click the PDC tab to view the server holding the PDC master role.
4. Click the Infrastructure tab to view the server holding the Infrastructure master role.
5. Click the RID Pool tab to view the server holding the RID master role.
Determine the Schema FSMO Holder in a Forest
1. Click Start, click Run, type mmc, and then click OK.
2. On the Console menu, click Add/Remove Snap-in, click Add, double-click Active Directory Schema, click
3. Close, and then click OK.
4. Right-click Active Directory Schema in the top left pane, and then click Operations Masters to view the server holding the schema master role
How to Determine the Domain Naming FSMO Holder in a Forest
1. Click Start, click Run, type mmc, and then click OK.
2. On the Console menu, click Add/Remove Snap-in, click Add, double-click Active Directory Domains and Trusts, click Close, and then click OK.
3. In the left pane, click Active Directory Domains and Trusts.
4. Right-click Active Directory Domains and Trust, and then click Operations Master to view the server holding the domain naming master role in the Forest.
for mote information, Check the microsoft tech article http://support.microsoft.com/kb/234790
