Starting the system

Some changes to the system settings or hardware configuration require the system to go through a startup sequence called an initial program load (IPL). During an IPL, system programs load from the designated load source device in the system auxiliary storage. The system hardware is also checked.

The control panel displays a series of system reference codes that indicate its current status and warn you of any problems. When the IPL is finished, the character-based interface presents the sign-on display, and users can sign on with System i® Navigator.

During the IPL, the control panel displays a series of system resource codes (SRCs) indicating the current system activity.

There are various options for starting a system.