Sensors and Indicators Reference Information

The server includes several sensors and indicators that report on hardware conditions. Many of the sensor readings are used to adjust the fan speeds and perform other actions, such as illuminating LEDs and powering off the server.

This section describes the sensors and indicators that Oracle ILOM monitors for the Sun Server X2-4.

The following types of sensors are described:

System Components
System Indicators
Temperature Sensors
Power Supply Fault Sensors
Fan Speed and Physical Security Sensors
Power Supply Unit Current, Voltage, and Power Sensors
Entity Presence Sensors

Note - For information about how to obtain sensor readings or to determine the state of system indicators in Oracle ILOM, see the Oracle Integrated Lights Out Manager (ILOM) 3.0 Daily Management -- CLI Procedures Guide and the Oracle Integrated Lights Out Manager (ILOM) 3.0 Daily Management -- Web Procedures Guide.

System Components

System Components describes the system components.

Table 3-2 System Components

Component Name	Description
/SYS/DBP	Disk backplane
/SYS/DBP/HDD`n`	Hard disks `n`
/SYS/FB	Fan board
/SYS/FB/FAN`n`	Fan `n`
/SYS/MB	Motherboard
/SYS/MB/NET`n`	Host network interfaces `n`
/SYS/MB/P`n`	Processor `n`
/SYS/MB/P`n`/MR`n`	Processor `n`; Memory riser `n`
/SYS/MB/P`n`/MR`n`/D`n`	Processor `n`; Memory riser `n`; DIMM `n`
/SYS/MB/PCIE[`n`, CC]	PCIe slot `n`, or cluster card
/SYS/PS`n`	Power supply `n`
/SYS/SP	Service processor
/SYS/SP/NET`n`	SP network interface `n`

System Indicators

System Indicators describes the system indicators.

Table 3-3 System Indicators

Indicator Name	Description
/SYS/CPU_FAULT	System CPU Fault LED
/SYS/DBP/HDD`n`/OK2RM	Hard disk `n` OK-to-Remove LED
/SYS/DBP/HDD`n`/SERVICE	Hard disk `n` Service LED
/SYS/FAN_FAULT	System fan Fault LED
/SYS/FB/FAN`n`/OK	Fan `n` OK LED
/SYS/FB/FAN`n`/SERVICE	Fan `n` Service LED
/SYS/LOCATE	System Locate indicator LED
/SYS/MB/P`n`/SERVICE	Processor `n` Service LED
/SYS/MB/P`n`/MR`n`/SERVICE	Processor `n`; Memory riser `n` Service LED
/SYS/MB/P`n`/MR`n`/D`n`/SERVICE	Processor `n`; Memory riser `n`; DIMM `n`; Service indicator
/SYS/MEMORY_FAULT	System memory Fault LED
/SYS/OK	System OK LED
/SYS/PS_FAULT	System power supply Fault LED
/SYS/SERVICE	System Service LED
/SYS/SP/OK	SP OK LED
/SYS/SP/SERVICE	SP Service LED
/SYS/TEMP_FAULT	System temperature Fault LED

Temperature Sensors

Temperature Sensors describes the environmental sensors.

Table 3-4 Temperature Sensors

Sensor Name	Sensor Type	Description
/SYS/DBP/T_AMB	Temperature	Disk back plane ambient temperature sensor
/SYS/MB/T_OUT`n`	Temperature	Motherboard exhaust temperature `n` sensor Note - These sensors are located in the rear of the chassis.
/SYS/T_AMB	Temperature	System ambient temperature sensor Note - This sensor is located on the underside of the fan board.
/SYS/PS`n`/T_OUT	Temperature	Power supply `n` exhaust temperature sensors

Power Supply Fault Sensors

Power Supply Sensors describes the power supply fault sensors. In the table, n designates the numbers 0-1.

Table 3-5 Power Supply Sensors

Sensor Name	Sensor Type	Description
/SYS/PS`n`/V_OUT_OK	Fault	Power supply `n` output voltage OK
/SYS/PS`n`/V_IN_ERR	Fault	Power supply `n` input voltage error
/SYS/PS`n`/V_IN_WARN	Fault	Power supply `n` input voltage warning
/SYS/PS`n`/V_OUT_ERR	Fault	Power supply `n` output voltage error
/SYS/PS`n`/I_OUT_ERR	Fault	Power supply `n` output current error
/SYS/PS`n`/I_OUT_WARN	Fault	Power supply `n` output current warning
/SYS/PS`n`/T_ERR	Fault	Power supply `n` temperature error
/SYS/PS`n`/T_WARN	Fault	Power supply `n` temperature warning
/SYS/PS`n`/FAN_ERR	Fault	Power supply `n` fan error
/SYS/PS`n`/FAN_WARN	Fault	Power supply `n` fan warning
/SYS/PS`n`/ERR	Fault	Power supply `n` error

Fan Speed and Physical Security Sensors

Fan and Security Sensors describes the fan and security sensors. In the table, n designates numbers 0, 1, 2, etc.

Table 3-6 Fan and Security Sensors

Sensor Name	Sensor Type	Description
/SYS/FB/FANn/TACH	Fan speed	Fan board; Fan `n` tachometer
/SYS/INTSW	Physical security	This sensor tracks the state of the chassis intrusion switch. If the server's top cover is opened while the AC power cords are still connected so that power is being applied to the server, this sensor asserts. If the top cover is subsequently replaced, this sensor is de-asserted. For more information, see Server Chassis Intrusion Sensor.

Power Supply Unit Current, Voltage, and Power Sensors

Power Supply Unit Current, Voltage, and Power Sensors describes the power supply unit current, voltage, and power sensors. In the table, n designates numbers 0-1.

Table 3-7 Power Supply Unit Current, Voltage, and Power Sensors

Sensor Name	Sensor Type	Description
/SYS/PSn/V_IN	Voltage	Power supply n AC input voltage sensor
/SYS/PSn/V_12V	Voltage	Power supply n 12 volt output sensor
/SYS/PSn/V_3V3	Voltage	Power supply n 3.3 volt output sensor
/SYS/PSn/P_IN	Power	Power supply n input power sensor
/SYS/PSn/P_OUT	Power	Power supply n output power sensor
/SYS/VPS	Power	Server total input power consumption sensor

Entity Presence Sensors

Presence Sensors describes the entity presence sensors. In the table, n designates numbers 0, 1, 2, etc.

Table 3-8 Presence Sensors

Sensor Name	Sensor Type	Description
/SYS/DBP/HDD`n`/PRSNT	Entity presence	Hard drive device present monitor
/SYS/DBP/PRSNT	Entity presence	Disk backplane present monitor
/SYS/FB/FAN`n`/PRSNT	Entity presence	Fan board; Fan `n` present monitor
/SYS/MB/Pn/PRSNT	Entity presence	Motherboard; CPU n present monitor
/SYS/MB/P`n`/MR`n`/PRSNT	Entity presence	Motherboard; CPU `n`; Memory riser `n` present monitor
/SYS/MB/Pn/MR`n`/Dn/PRSNT	Entity presence	Motherboard; CPU n; Memory riser `n`; DIMM n present monitor
/SYS/MB/PCIEn/PRSNT	Entity presence	PCIe card n present monitor Note - `n` represents PCIe cards 0-9 or the cluster controller (cc) card.
/SYS/PS`n`/PRSNT	Entity presence	Power supply n present monitor

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	Oracle Integrated Lights Out Manager (ILOM) 3.0 Supplement for Sun Server X2-4

Supplement for Sun Server X2-4