See the Sun N1 System Manager Site Preparation Guide for information about setting up a new server for discovery.
You can discover a server in three different ways: management network interface (SP-based discovery), provisioning network interface (OS-based discovery), or MAC address (manual discovery).
For SP-based discovery, each hardware platform requires a minimum set of credentials to be discovered. See the Sun N1 System Manager Site Preparation Guide for the list of system-specific default credentials that the discovery process uses if you do not specify credentials.
Note that the available N1 System Manager features for a server depend on how the server is discovered. Refer to the “Discovering Servers” chapter in Sun N1 System Manager Discovery and Administration Guide for more information.