You must already have discovered any installed Sun Blade X8400 Server Modules.
You must know the complete URL and the login and password of an account on the SC. By default, you can enter the IP address of the CMM as configured in Configuring the Sun Blade 8000 Modular System.
In the N1 System Manager browser interface, choose the Launch ILOM Web GUI option from the Actions list in the System Dashboard.
Edit the URL if it needs to be changed.
The first time you launch the ILOM Web GUI, you are prompted for the URL of the SC for the ILOM Web GUI. Subsequently, each time you launch the ILOM Web GUI, you are prompted to verify the URL you previously entered.