On your sever, the system console comes preconfigured to allow input and output only by means of the ILOM service processor. In the default configuration, ILOM alerts and system console output are interspersed in the same window.
You can separate the service processor system console output and the ILOM output by opening an ILOM session in one window, then opening the system console session in a second window. Or, you can redirect the system console to the graphics frame buffer. For more information, see Access the System Console Through a Local Graphics Monitor.