Preparing for Migration

To prepare to migrate your servers or domains to Windows Server 2003, you must identify the specific users, groups, services, computers, domains, and trust relationships that are within the scope of the migration.

Identify the source domain that contains the information (users, groups, etc.) from which you want to migrate, and identify the destination (target) domain to which this information will be migrated.

To document the migration, enable auditing on both the source and destination domains by using either of the two following methods:

  • In Windows 2000 and Windows Server 2003, start Active Directory Users and Computers. Right-click the domain you want to work with, and select Properties. In the Group Policy tab of the Properties dialog box, select the domain policy, and then click Edit. This displays the Group Policy Object Editor. In the Group Policy Object Editor, expand Computer Configuration, Windows Settings, Security Settings, Local Policies, and then select Audit Policies. In the right pane, double-click Audit Account Management, and then select Define These Policy Settings. Under Audit These Attempts, select Success and Failure, and then click OK.

  • In Windows NT, load User Manager for Domains, go to Policies, click the Audit menu option, enable Audit These Events, and select both Success and Failure for User And Group Management.

Prior to actually performing a migration, it is useful to perform a test run to determine its effects (by viewing the logs and reports generated). To test first, select the Test The Migration Settings And Migrate Later option in each of the ADMT wizards. By doing this, you can identify errors that occur in the migration of security principals or domain information and can correct the underlying configuration factors that caused any errors before performing the actual migration. By repeating this process of doing a test run and correcting errors, you can eliminate errors in the migration.

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