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Not in schema master site/domain

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2010-01-13

Microsoft® Exchange Server 2007 setup cannot continue because the computer that is running setup is not in the same Active Directory® directory service site or domain as the server that is assigned the domain schema master role, also known as flexible single master operations or FSMO.

Exchange 2007 setup requires the domain controller that serves as the domain schema master to be in the same site and domain as the local computer that is running Exchange setup.

The domain schema master controls all updates and modifications to the Active Directory schema.

To resolve this issue, run Exchange Server 2007 setup using the /prepareschema and /prepareAD switches from the same site and domain as the domain schema master.

For more information about the /prepareschema and /prepareAD setup switches, see the Exchange 2007 product documentation topic "How to Prepare Active Directory and Domains" (http://go.microsoft.com/fwlink/?linkid=78453)

You can use the Schema Master tool to identify the role. However, the Schmmgmt.dll DLL must be registered in order to make the Schema tool available as an MMC snap-in.

To view the current schema master
  1. At a command prompt, type regsvr32 schmmgmt.dll

    noteNote:
    RegSvr32 has been successfully registered when the following dialog box is displayed:
    DllRegisterServer in schmmgmt.dll succeeded.
  2. To open a new management console, click Start, click Run, and then type mmc.

  3. On the Console menu, click Add/Remove Snap-in.

  4. Click Add to open the Add Standalone Snap-in dialog box.

  5. Select Active Directory Schema, and then click Add.

  6. "Active Directory Schema" is displayed in the Add/Remove snap-in. Click Close, and then click OK to return to the console.

  7. Select Active Directory Schema so that the Classes and Attributes sections are displayed on the right side.

  8. Right-click Active Directory Schema and then click Operations Master.

  9. The current schema master is displayed

After you identify the current schema master, determine which subnet the schema master is located in. Then, use one of the following methods to install Exchange:

  • Modify the subnet on the Exchange server to move it into the site in which the schema master is located. Then, install Exchange.
  • Temporarily force a site membership change on the Exchange server, and then install Exchange. After Exchange is installed, return the Exchange server to its original site.
To force site membership
  1. On the server on which you want to install Exchange, start Registry Editor. To do this, click Start, click Run, type regedit, and then click OK.

  2. Locate the following registry subkey:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters

  3. Create the following new String value:

    Value name: SiteName

    Value type: REG_SZ

    Value data: <site_that_contains_the_schema_master>

  4. Exit Registry Editor, and then restart the Netlogon service. This action forces the Exchange server to participate in the site that you specified.

  5. Install Exchange.

  6. Remove the registry entry that you added in step 3.

  7. Restart the Netlogon service. This action returns Exchange to the original site.

 
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