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Running Schema Preparation

 

Topic Last Modified: 2012-10-13

Before you begin preparing Active Directory Domain Services (AD DS), you can open the schema files by using a text editor, such as Windows Notepad, or see Active Directory Domain Services Reference to review all the Active Directory Domain Services (AD DS) schema extensions that will be modified for Microsoft Lync Server 2010. Lync Server 2010 uses four schema files:

  • ExternalSchema.ldf, which is used for interoperability with Microsoft Exchange Server

  • ServerSchema.ldf, which is the primary Lync Server 2010 schema file

  • BackCompatSchema.ldf, which is used for interoperability with any components from prior releases

  • VersionSchema.ldf, which is used for version information of the prepared schema

All .ldf files are installed during schema preparation, regardless of whether you are migrating from a previous release or performing a clean installation. These schema files are installed in the sequence shown in the preceding list and are located in the \Support\schema folder on the installation media.

The Lync Server schema extensions are replicated across all domains, which impacts network traffic. Run schema preparation at a time when network usage is low.

noteNote:
If you need to add support for Microsoft® Office Communicator Mobile 2007 R2 for Java and Microsoft® Office Communicator Mobile for Nokia 1.0 mobile clients to your Lync Server 2010 deployment, you need to prepare the Active Directory schema for Microsoft Office Communications Server 2007 R2 during installation of Lync Server 2010. For the necessary software and documentation, see "Configuring Microsoft Lync Server 2010 to Support Communicator Mobile for Java and Communicator Mobile for Nokia" at http://go.microsoft.com/fwlink/p/?LinkId=207172.

Active Directory Service Interfaces Editor (ADSI Edit) is an AD DS administration tool that you can use to verify schema preparation and replication.

ADSI Edit is installed by default when you install the AD DS role to make a server a domain controller. For Windows Server 2008 and Windows Server 2008 R2, ADSI Edit (adsiedit.msc) is included with the Remote Server Administration Tools (RSAT). You can also install RSAT on domain member servers or stand-alone servers. The RSAT package is copied to these servers by default when you install Windows, but it is not installed by default. You install individual tools by using Server Manager. ADSI Edit is included under Role Administration Tools, Active Directory Domain Services Tools, Active Directory Domain Controller Tools.

For Windows Server 2003, ADSI Edit is included with the Support Tools. The Support Tools are available from the Windows Server 2003 CD in the \SUPPORT\TOOLS folder, or you can download them from “Windows Server 2003 Service Pack 2 32-bit Support Tools” at http://go.microsoft.com/fwlink/p/?LinkId=125770. Instructions for installing the Support Tools from the product CD are available from “Install Windows Support Tools” at http://go.microsoft.com/fwlink/p/?LinkId=125771. Adsiedit.dll is automatically registered when you install the support tools. If, however, you copied the files to your computer, you must run the regsvr32 command to register the adsiedit.dll file before you can run the tool.

 
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