Guardian Service Processor (Gsp) Overview; Gsp Lan; Gsp Rs-232; Gsp Features - HP L1000 - 9000 - 0 MB RAM Installation Manual

Cabling and Power-Up

Guardian Service Processor (GSP) Overview

Guardian Service Processor (GSP) Overview
This section provides an overview of the Guardian Service Processor (GSP). The GSP is an always on,
dedicated service processor that monitors system power, cooling and configuration, and provides console
communications. Power and cooling information is obtained via an interface to the platform monitor card.
Configuration information is obtained via connection to the Serial Presence Detect (SPD) bus. The GSP can
only be installed in slot 2 and must be present for the server to power up.
The GSP has downloadable firmware which can be updated independent of the HP-UX operating system.
GSP firmware updates can occur anytime the GSP is active. If the DC power switch is OFF, the GSP is still
operational and GSP firmware updates can still occur. GSP firmware updates may be performed by
customers.
If the GSP becomes hung, it is possible to reset the GSP without impacting the server. The GSP may be reset
via the GSP RESET button on the right side of the card. The PCI cover panel (right side panel) must first be
removed to allow access to the right side if the GSP card.
The GSP has two connectors on the bulkhead. An RJ-45 for LAN connections and a female DB25 connector for
RS-232 connections. Attach either a "W" or an "M" cable to the DB25 connector to provide individual output
for CONSOLE, REMOTE and UPS.
To access the GSP from the local ASCII console, type control b and the GSP> prompt will appear. It may be
necessary to type control Ecf first. To exit the GSP, type GSP>co.
The GSP was originally a core component of the revision A rp5400 (A5576A) and rp5450 (A5191A) servers.
Beginning with introduction of the revision B rp5400 (A5576B), rp5450 (A5191B), and rp5470 Servers the
GSP became a separate, must order product (A6696A).
There are two revisions of rp54xx GSP: rev A (A6696A) and rev B (A6696B). Both GSPs must be installed in
order for the server to power up.

GSP LAN

This LAN is exclusively for LAN console access and is not configurable via HP-UX. The LAN is configured via
GSP commands. Hostname, IP, gateway and subnet mask parameters may be set via the GSP>lc command.
The GSP may also initiate ping via the GSP>xd command.

GSP RS-232

The DB25 connector on the GSP is used for RS-232 communications to a local console (via CONSOLE
connector), a remote console via modem (REMOTE connector), and a UPS (UPS connector). The baud rate,
term type, etc., of the CONSOLE and REMOTE ports are configured via GSP>ca command.
The GSP supports VT100 and HPTERM terminal emulation. For correct communications, the GSP and
RS-232 device must use the same terminal emulation and baud rates.

GSP Features

The revision A GSP provides a 10 base-T LAN connector for LAN console access and a DB-25 connector to
which the A5191-63001 W-cable connects. The W-cable provides REMOTE, UPS, and CONSOLE DB-9
connectors.
Features of the revision A GSP are:
• 10 Base-T LAN connector for revision A GSP
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Chapter 3