HP-UX 11i September 2001 Release Notes

Workstation/Server Specific Information
Service Processor (GSP or MP)
Chapter 3
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Service Processor (GSP or MP)
The service processor is a service and console subsystem on N4000, all L-Class models,
the new A-Class machines (the A400 and A500), Superdome systems, rp8400 servers,
and all new servers introduced starting with the N-Class. The GSP console driver, the
software component of the GSP, provides the following features on HP-UX:
Local console port provides system console while HP-UX is running.
Remote session port establishes an HP-UX login session on the remote
console.
Local session port establishes an HP-UX login session on the local
console.
Internal console port supports firmware upgrade and diagnostics on GSP.
UPS port establishes a communication channel between the
UPS daemon and UPS.
SAM provides configuration support (that is, modem and UPS connections) over the GSP
serial ports. The insf (1M) and mksf (1M) commands create device files for the GSP serial
ports.
The following commands have been changed to provide additional support for the GSP
console:
• ttytype can determine the ID of the terminal connected to the local console port.
• stty supports status query and reset function of the GSP.
NOTE The service processor in HP servers is sometimes called the ManagementProcessor (MP)
and sometimes the Guardian Service Processor (GSP).
Regardless of the name, the service processor in these servers provides approximately
the same features and performs essentially the same role.
Throughout this document the term “service processor” refers to both the MP and GSP
service processors.
The GSP console driver is based on the existing built-in serial port driver (asio0). Every
serial port on the GSP adheres strictly to the termio feature set; these features are
described in the termio (7) and modem (7) manpages.
GSP Logging Capabilities
The introduction of GSP to the above platforms dramatically changes the way chassis
operations and diagnostic evaluations are performed on a running system.
The new subsystem requires HP-UX to provide more information than was provided on
previous platforms. HP-UX will continue to output the same chassis-codes and
forward-progress indicators that have been provided in previous releases. On the above
and subsequent systems, however, the codes are displayed on the Virtual Front Panel
(VFP) of the system. Most of the existing four-hex digit chassis codes are enclosed in
GSP-specific encoding.