The service reference procedures include general tasks such as
setting the system date and time, setting the system password, determining
the dominant operating system, accessing the history file, and so on.
System password
If a system password is required, the Verification of System Password
Failed display appears just prior to the IPL or Install the System display.
System unique identifier
The system unique identifier (SUID) is a 12-character ID that is
assigned by the manufacturer.
Determining a primary or alternative console
The primary console is the first workstation that the system
identifies. It is attached to the first input/output adapter (IOA) or input-output
processor (IOP) that supports workstations. The alternative console
is the workstation that functions as the console when the primary console
is not operational.
History file
The history file provides a high-level audit trail of the actions
that are performed by the system.
Low-level debug and data collecting procedures
Use these procedures to collect data for problems with Licensed
Internal Code or hardware that you have been unable to solve with other methods.
Logical partitions
Logical partitions are the distribution of resources within a single
system to make it operate as if it were two or more independent systems.
Independent Auxiliary Storage Pool (IASP) and clustering
These service reference procedures include determining if a tower
is switchable, and determining the power controlling and current logical system
ownership of a tower.