The Guardian Service Processor (also referred as GSP) is a

subsystem A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and is exp ...

within several models of server computers made by HP. It is a separate computer system within the server that allows some service tasks. It is available as long as the system is supplied with power, even when the main

operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

(usually

HP-UX HP-UX (from "Hewlett Packard Unix") is a proprietary software, proprietary implementation of the Unix operating system developed by Hewlett Packard Enterprise; current versions support HPE Integrity Servers, based on Intel's Itanium architect ...

) is shut down, defective or not installed at all. Common tasks of the GSP are: * Alert display configuration * Automatic System Restart configuration * Remote Power Control (if the system is managed from remote) * Configure asynchronous/serial ports * Display of several status values * Reset system ("reboot") * Show logs (chassis code buffer) * System status of proc. modules * LAN configuration for console port * Firmware upgrades

External links

* {{cite book, last=Poniatowski, first=Marty, title=HP-UX Virtual Partitions, url=https://books.google.com/books?id=6u3k1u0hEnoC&pg=PA161, year=2002, publisher=Prentice Hall Professional, isbn=9780130352125, pages=161–170 Hewlett-Packard products