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Installing Exchange Server 2010 : Preparing for Exchange 2010 Ahead of Time (part 2) - Preparing the Active Directory Forest,Preparing Additional Domains

11/10/2014 3:50:06 AM
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3. Preparing the Active Directory Forest

The next step is to prepare the Active Directory forest to support an Exchange organization. Although this process does not make as many changes to the forest, it does make quite a few more noticeable changes, such as creating the various Exchange configuration containers and creating Exchange security groups. An example of the configuration containers that are created is shown in Figure 2.

Figure 2. Exchange configuration containers that are found in the Active Directory configuration partition

Here are some tasks that the Active Directory preparation process includes:

  • Defining the Exchange organization name if it does not exist already in the Microsoft Exchange container under the Services container of the Active Directory configuration partition

  • Creating configuration objects and containers under the Exchange organization container (see Figure 2)

  • Creating the Microsoft Exchange Security Groups organizational unit in the forest root domain and then creating the Exchange universal security groups:

    • Delegated Setup

    • Discovery Management

    • Exchange All Hosted Organizations

    • Exchange Servers

    • Exchange Trusted Subsystem

    • Exchange Windows Permissions

    • ExchangeLegacyInterop

    • Help Desk

    • Hygiene Management

    • Organization Management

    • Public Folder Management

    • Recipient Management

    • Records Management

    • Server Management

    • UM Management

    • View-Only Organization Management

  • Importing new Exchange-specific extended Active Directory rights and assigning the necessary permissions in Active Directory

  • Creating the Microsoft Exchange System Objects container in the forest root domain

  • Preparing the forest root domain for Exchange Server 2010

To run the forest preparation, you must be logged on with a user who is a member of the Enterprise Admins group. Further, you should run the forest preparation process from a server that is in the same Active Directory site and domain that holds the schema master flexible single master of operations (FSMO) role. The setup /PrepareAD option is used to prepare the Active Directory.

You have two options when running /PrepareAD; the option you choose will depend on whether you have an existing Exchange organization. For example, to prepare a forest that has never supported any version of Exchange Server and to use the organization name SomoritaSurfboards, you would run the following command from the Exchange 2010 setup folder:

Setup /PrepareAD /OrganizationName:SomoritaSurfboards

Choosing an Exchange Organization Name

In previous versions of Exchange Server, choosing the right organization name was often a source of great anxiety. With Exchange 5.5 and earlier, when you built an Exchange site, if you did not pick the right organization name, you could not replicate that site's global address list to the rest of the organization.

Even with Exchange 2000/2003, the organization name was visible at the top of the global address list and within the Exchange System Manager administrative console. And once the organization name is set, it cannot be changed. Fears of acquisitions, mergers, and company name changes still drive people to be concerned about this name.

Although we still recommend naming your organization something descriptive, the actual name is not as important because it is not going to be seen by the end users and is rarely (if ever) seen by the administrators. You can always set the organization name to something generic like ExchangeOrganization if you want something that would not be affected by a reorganization.

When you pick an organization name, use a name that is 64 characters or less and uses only valid Active Directory characters for a container name. We recommend you stick to the basics:

  • A–Z

  • a–z

  • 0–9

  • Spaces and hyphens


However, if the forest already supports a previous version of Exchange Server, the /OrganizationName option is not necessary. You can simply run this command:

Setup /PrepareAD

When the /PrepareAD process runs, it will check to see if the /PrepareLegacyExchangePermissions or /PrepareSchema steps need to be run. If so, Setup will check to see if you have the necessary permissions to run them, and Setup will run these steps as well. However, if the other steps are necessary and you do not have the necessary permissions, you will see an error and Setup will fail.

4. Preparing Additional Domains

If you have only a single domain in your Active Directory forest, the Setup option /PrepareAD will prepare that domain and you will be ready to proceed with your first Exchange server installation.

However, if you have additional domains in your Active Directory forest, you may have to prepare these additional domains if they are going to contain mail-enabled recipients or if they will contain Exchange servers. To prepare these domains, use the /PrepareDomain or /PrepareAllDomains Setup options. Some of the things this process does include the following:

  • Assigning to the domain container various permissions to the Authenticated Users and Exchange universal security groups that are necessary for viewing recipient information and performing recipient management tasks.

  • Creating a Microsoft Exchange System Objects container in the root of the domain; this container holds mail-enabled recipient information for organization objects such as Exchange databases.

To prepare a single domain, you must be logged on as a member of that domain's Domain Admins group, and there should be a domain controller for that domain in the same site as the server from which you are running Setup. The domain controller should be running a minimum of Windows Server 2003 SP2. To prepare a domain called eu.somorita.local, type this command:

Setup /PrepareDomain:eu.somorita.local

If you have a user account that is a member of the Enterprise Admins group, you can run this command and prepare all domains in the entire forest:

Setup /PrepareAllDomains
 
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