Sensor Definitions

C H A P T E R 3

Sensor Definitions

This chapter lists and describes the Sun Fire X4140, X4240, and X4440 sensors.

Refer to the Sun Integrated Lights Out Manager 2.0 User’s Guide for instructions on displaying the sensors.

System Sensors

sys.intsw

This sensor indicates the state of the chassis intrusion switch. When the chassis cover to the CPU area is opened, the system sensor logs an event.

State	Event	Description
General chassis intrusion	Yes	This state indicates that the chassis intrusion switch has been activated.
	No	This state indicates that the intrusion switch is inactive and has not been tripped.

sys.acpi

This sensor indicates the ACPI power state of the system.

State	Event	Description
S0/G0: working	Yes	System power is on (S0).
S5/G2: soft-off	Yes	System power is off (S5).

sys.nmi

This sensor monitors the rear NMI button.

State	Event	Description
NMI/Diag Interrupt	Yes	NMI dump button pressed.

sys.power.btn

This sensor monitors the system Power button.

State	Event	Description
Power button pressed	Yes	Power button pressed.

sys.reset.btn

This sensor monitors the rear Reset button.

State	Event	Description
Reset button pressed	Yes	Reset button pressed.

sys.locate.btn

This sensor monitors the system Locate button.

State	Event	Description
Asserted	Yes	Locate button pressed.

CPU 0 Discrete Sensors

p0.prsnt

This sensor indicates the presence of CPU 0.

State	Event	Description
Predictive Failure Deasserted	Yes	This state indicates CPU 0 is absent.
Predictive Failure Asserted	Yes	This state indicates CPU 0 is present.

p0.prochot

When asserted, this sensor indicates that CPU 0 has reached a preset maximum operating temperature and thermal throttling is active in the processor.

State	Event	Description
Asserted	Yes	This state indicates CPU 0 prochot signal is asserted.
Deasserted	Yes	This state indicates CPU 0 prochot signal is deasserted.

CPU 1 Discrete Sensors

p1.prsnt

This sensor indicates the presence of CPU 1.

State	Event	Description
Predictive Failure Deasserted	Yes	This state indicates CPU 1 is absent.
Predictive Failure Asserted	Yes	This state indicates CPU 1 is present.

p1.prochot

When asserted, this sensor indicates that CPU 1 has reached a preset maximum operating temperature and thermal throttling is active in the processor.

State	Event	Description
Asserted	Yes	This state indicates CPU 1 prochot signal is asserted.
Deasserted	Yes	This state indicates CPU 1 prochot signal is deasserted.

CPU 2 Discrete Sensors (Sun Fire X4440 Only)

p2.prsnt

This sensor indicates the presence of CPU 2.

State	Event	Description
Predictive Failure Deasserted	Yes	This state indicates CPU 2 is absent.
Predictive Failure Asserted	Yes	This state indicates CPU 2 is present.

p2.prochot

When asserted, this sensor indicates that CPU 2 has reached a preset maximum operating temperature and thermal throttling is active in the processor.

State	Event	Description
Asserted	Yes	This state indicates CPU 2 prochot signal is asserted.
Deasserted	Yes	This state indicates CPU 2 prochot signal is deasserted.

CPU 3 Discrete Sensors (Sun Fire X4440 Only)

p3.prsnt

This sensor indicates the presence of CPU 3.

State	Event	Description
Predictive Failure Deasserted	Yes	This state indicates CPU 3 is absent.
Predictive Failure Asserted	Yes	This state indicates CPU 3 is present.

p3.prochot

When asserted, this sensor indicates that CPU 3 has reached a preset maximum operating temperature and thermal throttling is active in the processor.

State	Event	Description
Asserted	Yes	This state indicates CPU 3 prochot signal is asserted.
Deasserted	Yes	This state indicates CPU 3 prochot signal is deasserted.

Power Supply Sensors

ps0.prsnt

This sensor indicates whether power supply 0 is present. On systems with two power supplies, the power supply configuration is redundant, so if power supply 0 is removed, the power supply status LEDs are turned ON.

State	Event	Description
Device Absent	Yes	Power Supply 0 is absent.
Device Present	Yes	Power Supply 0 is present.

When the device is absent, PS Fail is ON and System Alert LED is ON.

ps0.vinok

This sensor indicates whether power supply 0 is connected to AC power.

This sensor is only monitored when PS0 is present.

State	Event	Description
State Deasserted	Yes	Power Supply 0 is disconnected from AC power.
State Asserted	Yes	Power Supply 0 is connected to AC power.

When deasserted, PS Fail is ON and System Alert LED is ON.

ps0.pwrok

This sensor indicates whether power supply 0 is turned on and powering the system.

This sensor is only monitored when PS0 is present and system power is good.

State	Event	Description
State Deasserted	Yes	Power Supply 0 is off.
State Asserted	Yes	Power Supply 0 is on.

When deasserted, PS Fail is ON and System Alert LED is ON.

ps1.prsnt

This sensor indicates whether power supply 1 is present. The power supply configuration is redundant, so if power supply 1 is removed, the power supply status LEDs are turned ON.

State	Event	Description
Device Absent	Yes	Power Supply 1 is absent.
Device Present	Yes	Power Supply 1 is present.

When the device is absent, PS Fail is ON and the System Alert LED is ON.

ps1.vinok

This sensor indicates whether power supply 1 is connected to AC power.

This sensor is only monitored when PS1 is present.

State	Event	Description
State Deasserted	Yes	Power Supply 1 is disconnected from AC power.
State Asserted	Yes	Power Supply 1 is connected to AC power.

When deasserted PS Fail is ON and System Alert LED is ON.

ps1.pwrok

This sensor indicates whether power supply 1 is turned on and powering the system. This sensor is only monitored when PS1 is present and system power is good.

State	Event	Description
State Deasserted	Yes	Power Supply 1 is off.
State Asserted	Yes	Power Supply 1 is on.

When deasserted PS Fail is ON and System Alert LED is ON.

Fan Control Temperature Sensors

Temperature sensors in this category are used as inputs to the fan control algorithm and are also used to turn system power off if they are non-recoverable. Their state also affects the state of the front panel LEDs.

sys.t_amb

This sensor monitors the system ambient temperature from an ADT7462 chip.

Threshold	Direction	Event	Description
Upper Non-Critical	Assert	Yes	Ambient temperature has increased above non-critical threshold.
			Action: None
Upper Non-Critical	Deassert	Yes	Ambient temperature has returned to normal from non-critical.
			Action: None
Upper Critical	Assert	Yes	Ambient temperature has increased above critical threshold.
			Action: Over Temperature LED is ON and System Alert LED is ON.
Upper Critical	Deassert	Yes	Ambient temperature has returned to non-critical from critical.
			Action: Over Temperature LED is OFF and System Alert LED is OFF.
Upper Non-Recoverable	Assert	Yes	Ambient temperature has increased above non-recoverable threshold.
			Action: Over Temperature LED is ON and System Alert LED is ON and System Power is turned OFF.
Upper Non-Recoverable	Deassert	Yes	Ambient temperature has returned to critical from non-recoverable.
			Action: Over Temperature LED is ON and System Alert LED is ON.

p0.t_core

This sensor monitors CPU 0 temperature.

p1.t_core

This sensor monitors CPU 1 temperature.

p2.t_core

This sensor monitors CPU 2 temperature. This sensor is available only on the Sun Fire X4440.

p3.t_core

This sensor monitors CPU 3 temperature. This sensor is available only on the Sun Fire X4440.

For All pX.t_core Sensors
Threshold	Direction	Event	Description
Upper Non-Critical	Assert	Yes	Ambient temperature has increased above non-critical threshold.
			Action: None
Upper Non-Critical	Deassert	Yes	Ambient temperature has returned to normal from non-critical.
			Action: None
Upper Critical	Assert	Yes	Ambient temperature has increased above critical threshold.
			Action: Over Temperature LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Upper Critical	Deassert	Yes	Ambient temperature has returned to non-critical from critical.
			Action: Over Temperature LED is OFF, CPU X Fail LED is OFF, and System Alert LED is OFF.
Upper Non-Recoverable	Assert	Yes	Ambient temperature has increased above non-recoverable threshold.
			Action: Over Temperature LED is ON, CPU X Fail LED is ON, System Alert LED is ON, and System Power is turned OFF.
Upper Non-Recoverable	Deassert	Yes	Ambient temperature has returned to critical from non-recoverable.
			Action: Over Temperature LED is ON, CPU X Fail LED is OFF, and System Alert LED is ON.

Other Temperature Sensors

These temperature sensors are monitored and will affect the state of the front panel LEDs, but are not used as inputs to the fan control algorithm and are not used to turn off system power when they are non-recoverable.

mb.t_core

This sensor monitors the ambient temperature from the ADM1026 chip on the motherboard.

mezz.t_core

This sensor monitors the ambient temperature from the ADM1026 chip on the mezzanine board.

Mainboard Voltage Sensors

All mainboard voltage sensors are configured to generate the same events and faults are handled in the same way.

mb.v_bat

This sensor monitors the 3V RTC battery on the mainboard.

mb.v_+3v3stby

This sensor monitors the 3.3V standby input that powers the service processor and other standby devices.

mb.v_+3v3

This sensor monitors the 3.3V main input that is active when the power is on.

mb.v_+5v

This sensor monitors the 5V main input that is active when the power is on.

mb.v_+12v

This sensor monitors the 12V main input that is active when the power is on.

mb.v_+1v5

This sensor monitors the 1.5V input that is active when the power is on.

mb.v_+1v2ht

This sensor monitors the 1.2Vht input that is active when the power is on.

mb.v_+1.4

This sensor monitors the 1.4V input that is active when the power is on.

Threshold	Direction	Event	Description
Lower Non-Critical	Assert	Yes	Voltage has decreased below lower non-critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Non-Critical	Deassert	Yes	Voltage has returned to normal from lower non-critical.
			Action: PS Fail LED is OFF and System Alert LED is OFF.
Lower Critical	Assert	Yes	Voltage has decreased below lower critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Critical	Deassert	Yes	Voltage has returned to lower non-critical from lower critical.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Non-Recoverable	Assert	Yes	Voltage has decreased below lower non-recoverable threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Non-Recoverable	Deassert	Yes	Voltage has returned to lower critical from lower non-recoverable.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Critical	Assert	Yes	Voltage has increased above upper non-critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Critical	Deassert	Yes	Voltage has returned to normal from upper non-critical.
			Action: PS Fail LED is OFF and System Alert LED is OFF.
Upper Critical	Assert	Yes	Voltage has increased above upper critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Critical	Deassert	Yes	Voltage has returned to upper non-critical from upper critical.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Recoverable	Assert	Yes	Voltage has increased above upper non-recoverable threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Recoverable	Deassert	Yes	Voltage has returned to upper critical from upper non-recoverable.
			Action: PS Fail LED is ON and System Alert LED is ON.

Mezzanine Voltage Sensors (Sun Fire X4440 Only)

All mezzanine voltage sensors are configured to generate the same events, and faults are handled in the same way.

mezz.v_+3v3stby

This sensor monitors the mezzanine board 3.3V standby input.

mezz.v_+3v3

This sensor monitors the mezzanine board 3.3V main input that is active when the power is on.

mezz.v_+12v

This sensor monitors the mezzanine board 12V main input that is active when the power is on.

mezz.v_+1v2ht

This sensor monitors the mezzanine board 1.2Vht input that is active when the power is on.

Thresholds for All Mezzanine Voltage Sensors
Threshold	Direction	Event	Description
Lower Non-Critical	Assert	Yes	Voltage has decreased below lower non-critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Non-Critical	Deassert	Yes	Voltage has returned to normal from lower non-critical.
			Action: PS Fail LED is OFF and System Alert LED is OFF.
Lower Critical	Assert	Yes	Voltage has decreased below lower critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Critical	Deassert	Yes	Voltage has returned to lower non-critical from lower critical.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Non-Recoverable	Assert	Yes	Voltage has decreased below lower non-recoverable threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Lower Non-Recoverable	Deassert	Yes	Voltage has returned to lower critical from lower non-recoverable.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Critical	Assert	Yes	Voltage has increased above upper non-critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Critical	Deassert	Yes	Voltage has returned to normal from upper non-critical.
			Action: PS Fail LED is OFF and System Alert LED is OFF.
Upper Critical	Assert	Yes	Voltage has increased above upper critical threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Critical	Deassert	Yes	Voltage has returned to upper non-critical from upper critical.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Recoverable	Assert	Yes	Voltage has increased above upper non-recoverable threshold.
			Action: PS Fail LED is ON and System Alert LED is ON.
Upper Non-Recoverable	Deassert	Yes	Voltage has returned to upper critical from upper non-recoverable.
			Action: PS Fail LED is ON and System Alert LED is ON.

CPU Voltage Sensors

All CPU voltage sensors are configured to generate the same events, and faults are handled in the same way.

X is 0-3 on Sun Fire X4440 and 0-1 on the Sun Fire X4140 and X4240.

pX.v_vddcore

This sensor monitors the CPU X VDD voltage.

pX.v_+1v8

This sensor monitors the CPU X 1.8V voltage.

pX.v_+0v9

This sensor monitors the CPU X 0.9V voltage.

pX.v_vddnb

This sensor monitors the North Bridge voltage.

Thresholds for all CPU Voltage Sensors
Threshold	Direction	Event	Description
Lower Non-Critical	Assert	Yes	CPU X voltage has decreased below lower non-critical threshold.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Lower Non-Critical	Deassert	Yes	CPU X voltage has returned to normal from lower non-critical.
			Action: PS Fail LED is OFF, CPU X Fail LED is OFF, and System Alert LED is OFF.
Lower Critical	Assert	Yes	CPU X voltage has decreased below lower critical threshold.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Lower Critical	Deassert	Yes	CPU X voltage has returned to lower non-critical from lower critical.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Lower Non-Recoverable	Assert	Yes	CPU X voltage has decreased below lower non-recoverable threshold.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Lower Non-Recoverable	Deassert	Yes	CPU X voltage has returned to lower critical from lower non-recoverable.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Upper Non-Critical	Assert	Yes	CPU X voltage has increased above upper non-critical threshold.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Upper Non-Critical	Deassert	Yes	CPU X voltage has returned to normal from upper non-critical.
			Action: PS Fail LED is OFF, CPU X Fail LED is OFF, and System Alert LED is OFF.
Upper Critical	Assert	Yes	CPU X voltage has increased above upper critical threshold.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Upper Critical	Deassert	Yes	CPU X voltage has returned to upper non-critical from upper critical.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Upper Non-Recoverable	Assert	Yes	CPU X voltage has increased above upper non-recoverable threshold.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.
Upper Non-Recoverable	Deassert	Yes	CPU X voltage has returned to upper critical from upper non-recoverable.
			Action: PS Fail LED is ON, CPU X Fail LED is ON, and System Alert LED is ON.

Fan Presence Sensors

The chassis has individual fan module presence sensors that indicate the physical presence of the fan module.

fbX.fmY.prsnt

This sensor indicates the presence of Fan Module Y, on Fan Board X.

State	Event	Description
Device Absent	Yes	This state indicates that Fan Board X Module Y is absent.
Device Present	Yes	This state indicates that Fan Board X Module Y is present.

Fan Speed Sensors

All fan board fan speed sensors are configured to generate the same events and all faults are handled in the same way.

fbX.fmY.fZ.speed

This sensor monitors the speed of the Fan Z in Fan Module Y, on Fan Board X.

Threshold	Direction	Event	Description
Lower Non-Recoverable	Assert	Yes	Fan speed has decreased below lower non-recoverable threshold.
			Action: Fan Fail LED is ON, Fan Board X Module Y Fail LED is ON, and System Alert LED is ON.
Lower Non-Recoverable	Deassert	Yes	Fan speed has returned to normal from lower non-recoverable.
			Action: Fan Fail LED is OFF, Fan Board X Module Y Fail LED is OFF, and System Alert LED is OFF.

I/O Sensors

hddX.prsnt

This sensor monitors hard drive presence.

X is 0-7 for the Sun Fire X4140 and X4440.

X is 0-15 for the Sun Fire X4240.

State	Event	Description
Device Absent	Yes	This state indicates that HDD X is not present.
Device Present	Yes	This state indicates that HDD X is present.

hddX.fail

This sensor monitors hard drive failure.

X is 0-7 for the Sun Fire X4140 and X4440.

X is 0-15 for the Sun Fire X4240.

State	Event	Description
Predictive Failure Deasserted	No	This state indicates HDD X Fault.
Predictive Failure Asserted	Yes	This state indicates HDD X Fault.

This sensor is asserted in response to a fault signal from the AMI SAS controller. The amber LED on drive X and the System Alert LED are ON while this is asserted.

hddX.ok2rm

This settable discrete sensor shows the “OK to remove” status of the drive.

X is 0-7 for the Sun Fire X4140 and X4440.

X is 0-15 for the Sun Fire X4240.

Reading	Event	Description
0x80 (States Asserted: [Hot Spare])	Yes	It is OK to remove HDD X.
0x00	No	It is not OK to remove HDD X.

This sensor reading is set by external entities such as a disk monitor application running on the host OS. As a result, the blue LED on drive X is ON when the “Hot Spare” state is asserted.