Forest Prep

After the schema has been updated, the Deployment Wizard enables the remaining AD preparation steps. The next step is to prepare the forest for the Lync Server installation, which creates global configuration settings and universal security groups required for the Lync deployment. The forest prep step must be performed by a user that is currently a member of the Enterprise Admins group. Continuing with the Deployment Wizard, the following steps are used to prepare the forest:

1. Click Run on Step 3: Prepare Current Forest. The Prepare Forest task launches, as shown in Figure 11.3. Click Next.

Image

Figure 11.3. Preparing the forest.

2. At the Universal Group Location screen, the option is presented to create the Lync security groups in another domain in the forest. Either choose the Domain FQDN option and enter the fully qualified name of another domain, or keep the default setting to create the groups in the local domain. When finished, click Next. This action invokes the Install-CSAdForest PowerShell command, which creates the global configuration settings and universal security groups required by Lync.

Tip

By default, the Lync installer will create the Lync universal security groups in the domain where the wizard is being run. However, for some organizations it may make sense to select an alternate domain to host these groups. For example, some organizations use an empty placeholder domain as the AD forest root domain. In this situation, one of the child domains would likely be selected to host the Lync security groups to maintain organizational policy.

3. When the command has finished executing, click View Log to review the log file and ensure that no errors or warnings were generated during forest preparation.

4. When finished, click Finish to complete the procedure and return to the Deployment Wizard.

5. Verify that the changes introduced during Forest Prep have replicated throughout the AD forest before continuing with the next step.

Tip

Replication of the forest prep changes can be verified by simply using the Active Directory Users and Computers console to determine whether the Lync security groups have been created. In the Users container at the root of the domain chosen in step 2, 11 new groups named with the “CS” prefix should be present, for example, CSAdministrator.

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