Sun Microsystems CP2500 manual Reading Temperature Sensor States Using

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The environmental monitoring parameter values in the application program apply when the system is running at the Solaris level and do not necessarily have to be the same as the default settings programmed by the SMC and used by the OpenBoot PROM. The OpenBoot PROM environmental monitoring only applies when the system is running at the OpenBoot PROM level.

Reading Temperature Sensor States Using the

PICL API

Temperature sensor states may be read using the libpicl API. The following properties are supported in a PICL temperature sensor class node:

TABLE 2-4PICL Temperature Sensor Class Node Properties

Property	Type	Description

LowWarningThreshold	INT	Low threshold for warning
LowShutdownThreshold	INT	Low threshold for shutdown
LowPowerOffThreshold	INT	Low threshold for power off
HighWarningThreshold	INT	High threshold for warning
HighShutdownThreshold	INT	High threshold for shutdown
HighPowerOffThreshold	INT	High threshold for power off

The PICL plug-in receives these sensor events and updates the State property based on the information extracted from the IPMI message. It then posts a PICL event.

Threshold levels of the PICL node class temperature sensor are:

■Warning

■Shutdown

■Power Off

To obtain a reading of temperature sensor states, use the prtpicl -vcommand:

#prtpicl -c temperature-sensor -v

Sample PICL output of temperature sensors on a Netra CT system is as follows.

#prtpicl -c temperature-sensor -v

CPU-sensor (temperature-sensor, 2600000041f)

:Condition ok

:HighPowerOffThreshold 123

Chapter 2 Environmental Monitoring 35

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Contents Netra CP2500 Board Programming Guide Page Contents User Flash Figures Vi Netra CP2500 Board Programming Guide March Tables Viii Netra CP2500 Board Programming Guide March Code Samples Netra CP2500 Board Programming Guide March How This Book Is Organized PrefaceTypographic Conventions Using Unix CommandsRelated Documentation Shell PromptsThird-Party Web Sites Documentation, Support, and TrainingSun Welcomes Your Comments Overview Watchdog TimerPicl Plug-In Module 2Properties Under watchdog-controllerNode 1Watchdog Plug-In Interfaces for Netra CP2500 Board SoftwareHEALTHY# 3Properties Under watchdog-timerNodeCode Example 1-1System Watchdog Node Management Code Example Watchdog Node Management CodeCode Example 1-1System Watchdog Node Management Code Example Usagestr Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Null Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Code Example 1-1System Watchdog Node Management Code Example Notreached Code Example 1-1System Watchdog Node Management Code Example OpenBoot Prom Interface Netra CP2500 Board Programming Guide March Environmental Monitoring Typical Environmental Monitoring System Application Environmental Monitoring Component Compatibility1Compatible Environmental Monitoring Components I2C Environmental Monitoring Protection at the OpenBoot Prom Typical Cycle From Power Up to ShutdownPost Shutdown Recovery 3I2C Components Hardware Environmental Monitoring FunctionsEnvironmental Monitoring CPU Inlet, Exhaust, and CPU Temperature Monitoring Switching Power On and OffNetra CP2500 Board Programming Guide March Critical Temperature Response at OpenBoot Prom OpenBoot Prom Environmental MonitoringEnvironmental Monitoring Application Programming Using the show-sensorsCommand at OpenBoot Prom4PICL Temperature Sensor Class Node Properties Reading Temperature Sensor States UsingSolaris Driver Interface Using a Configuration File for Sensor InformationCode Example 2-1Sample envmond Application Program Sample Application ProgramCode Example 2-1Sample envmond Application Program Code Example 2-1Sample envmond Application Program Code Example 2-1Sample envmond Application Program Prtdiag command example Reading the CPU Temperature Environmental Limits5Description of Values Displayed by Solaris Commands User Flash Usage and Implementation User FlashUser Flash Driver OpenBoot Prom Device Tree and Properties1User Flash Node Properties User Flash Device Files Application Programming InterfaceInterface Header File 2System CallsCode Example 3-1PROM Information Structure Structures to Use in Ioctl ArgumentsExample Programs ErrorsCode Example 3-2User Flash Interface Structure Code Example 3-3Read Action on User Flash Device Read Example ProgramCode Example 3-4Write Action on User Flash Device Write Example ProgramCode Example 3-4Write Action on User Flash Device Code Example 3-5Block Erase Action on User Flash Device Block Erase Example ProgramCode Example 3-5Block Erase Action on User Flash Device Code Example 3-6Sample User Flash Application Program Sample User Flash Application ProgramCode Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Code Example 3-6Sample User Flash Application Program Picl IndexWatchdog-controller, 3 Watchdog-timer, 3