Use the following steps to upgrade the Java Run Environment, install Message Queue, and upgrade Directory Server.
Upgrade the Java 2 Runtime Environment (or Java 2 SDK) on each host (except on Windows NT) where Identity Synchronization for Windows components are installed. The minimum required version is 1.5.0.
Upgrade Directory Server to version 6.3. For more information, see Chapter 1, Overview of the Migration Process for Directory Server.
To keep the Administration Server intact, use the -N option while migrating Directory Server (configuration and data) to version 6.3. For more information on migrating configuration data and user data, see Using dsmig to Migrate Configuration Data and Using dsmig to Migrate User Data respectively.
The Directory Server upgrade preserves your current Directory Server configuration and database.