Sensors

C H A P T E R 2

Sensors

This chapter contains ILOM sensor information for both the Sun Blade 6000 and Sun Blade 6048 chassis. The information in this section is specific for ILOM 3.0.

For sensor information for previous versions of ILOM, see the Integrated Lights Out Manager (ILOM) Administration Guide for the Sun Blade 6000 Modular System for Sun Blade 6000 and the Sun Blade 6048 Modular System Service Manual for the Sun Blade 6048.

This chapter contains the following sections:

Types of Sensors

Displaying Sensors

Sensor Information

Types of Sensors

There are two types of CMM sensors:

Discrete sensors display information about the CMM components.

Threshold sensors show analog values, such as temperature readings or voltage levels.

Discrete Sensors

Discrete sensors display a single value from a set of possible values.

Discrete sensors are displayed in the following format:

/PATH/TO/SENSOR
    Targets:
        $(POSSIBLE_SUB_SENSORS)
    Properties:
        type = $(SENSOR_TYPE)
        class = Discrete
        value = $(SENSOR_VALUE)

Where the following variables are used:

POSSIBLE_SUB_SENSORS: A list of sensors below this sensor. Examples include fault or warning sensors. Using the cd command, you can navigate to the sub-sensor node.

SENSOR_TYPE: The type of sensor.

SENSOR_VALUE: The sensor value.

Threshold Sensors

Threshold sensors display analog readings, such as temperature or voltage levels, and can display associated thresholds for that reading. These can be configured to generate system events when they exceed specified thresholds.

In general, these sensors are displayed in the following format:

/PATH/TO/SENSOR
    Targets:
        $(POSSIBLE_SUB_SENSORS)
    Properties:
        type = $(SENSOR_TYPE)
        class = Threshold 
        value = $(SENSOR_VALUE) $(SENSOR_UNITS)
        upper_nonrecov_threshold = $(UNR_THRESH) $(SENSOR_UNITS)
        upper_critical_threshold = $(UC_THRESH) $(SENSOR_UNITS)
        upper_noncritical_threshold = $(UNC_THRESH) $(SENSOR_UNITS)
        lower_noncritical_threshold = $(LNC_THRESH) $(SENSOR_UNITS)
        lower_critical_threshold = $(LC_THRESH) $(SENSOR_UNITS)
        lower_nonrecov_threshold = $(LNR_THRESH) $(SENSOR_UNITS)

POSSIBLE_SUB_SENSORS: A list of sensors below this sensor. Examples include fault or warning sensors. Use the CD command to navigate to the sub-sensor.

SENSOR_TYPE: The type of sensor.

SENSOR_VALUE: The near real-time analog reading from the sensor.

SENSOR_UNITS: The units describing the SENSOR_VALUE reading.

UNR_THRESH, UC_THRESH UNC_THRESH, LNR_THRESH, LC_THRESH, LNC_THRESH: These values may generate a system event if the SENSOR_VALUE crosses their thresholds.

If the CLI has no access to threshold values, for example if a component is not present, the corresponding sensor is displayed as “0.000”.

Displaying Sensors

All sensors are located in the /CH namespace. To display the sensors using the CLI, separate the fields into targets and navigate using the cd and show commands.

For example, the speed for fan 0 in fan module 3 can be viewed by entering:

-> show /CH/FM3/F0/TACH

Note - If the chassis slot does not contain a server module, or if a power supply is not present, the corresponding target might not appear. For example, if slot 3 is empty, the target BL3 might not appear.

Sensor Information

All sensors listed in this section can be accessed through the ILOM CLI or web interface by placing /CH in front of the sensor path shown here. For example, to access the NEMn/PRSNT, use the path /CH/NEMn/PRSNT.

Note - The Reading value in column 1 of each table is used by impitool to represent the State shown in column 2.

The following sensors are described in this section:

NEM Sensors

Power Supply Sensors

Fan Sensors

Blade Module Sensors

Chassis Sensors

NEM Sensors

There are two network express module (NEM) slots available in the chassis. NEMs are numbered from 0 to 1.

`NEM`n`/PRSNT`

These sensors report whether the NEMs are present.

TABLE 2-1 NEMn/PRSNT Readings
Reading	State	Event	Description
0x0001	Device Absent	Yes	NEM is absent.
0x0002	Device Present	Yes	NEM is present.

`NEM`n`/STATE`

These sensors report the state of any multi-fabric NEMs that are installed in the chassis.

TABLE 2-2 NEMn/STATE Readings
Reading	State	Event	Description
0x0001	Running	Yes	NEM is running.
0x0004	Powered Off	Yes	NEM is powered off.
0x0040	Degraded	Yes	NEM needs to be serviced

`NEM`n`/ERR`

These sensors report whether any multi-fabric NEMs have failed.

TABLE 2-3 NEMn/ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	Yes	NEM has not failed.
0x0002	Predictive Failure Asserted	Yes	NEM has failed.

Power Supply Sensors

There are two power supply modules in the chassis. Each power supply module contains two power supplies or “sides” for the Sun Blade 6000 chassis and three power supply sides for the Sun Blade 6048 chassis. Power supply modules are numbered from 0 to 1 and power supply sides are numbered from 0 to 1.

`PS`n`/PRST`

Reports the presence of the power supply module.

TABLE 2-4 PS n /PRST Readings
Reading	State	Event	Description
0x0001	Device Absent	Yes	Power supply is absent.
0x0002	Device Present	Yes	Power supply is present.

`PS`n`/IN_POWER`

These threshold sensors report the input (AC) power to the power supplies in Watts.

The power sensors are only accurate when the chassis is drawing a significant amount of power. Under low power conditions, the chassis cannot accurately measure power, so it will report "no reading". Typically, accurate power cannot be reported if the Sun Blade 6000 chassis is drawing less than 1500 Watts or if the Sun Blade 6048 chassis is drawing less than 2200 Watts.

`PS`n/`OUT_POWER`

These threshold sensors report the output (DC) power from the power supplies in Watts.

`PS`n`/T_AMB`

These threshold sensors report the ambient temperature of the power supply modules.

`PS`n`/V_12V`

These threshold sensors report the power supply module 12V voltage reading.

`PS`n`/V_3V3`

These threshold sensors report the power supply module 3_3V voltage reading.

`PS`n`/I_3V3`

These threshold sensors report the power supply module 3_3V current rating.

`PS`n`/V_3V3_ERR`

Reports a power supply module 3_3V sensor fault.

TABLE 2-5 PS n /V_3V3_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply 3_3V fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply 3_3V fault has occurred.

`PS`n`/TEMP_WRN`

Reports that ambient temperature reaches the following range: 50o to 60o C.

TABLE 2-6 PS n /TEMP_WRN Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply ambient temperature has not reached the 50o to 60o C range.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply ambient temperature has reached the 50o to 60o C range.

`PS`n`/TEMP_ERR`

Reports presence of a power supply temperature error.

TABLE 2-7 PS n /TEMP_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply temperature fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply temperature fault has occurred.

`PS`n`/FAN_ERR`

Reports presence of a power supply fan error.

TABLE 2-8 PS n /FAN_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply fan fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply fan fault has occurred.

`PS`n`/FAN`n`/TACH`

These threshold sensors report the speed of the two fans in the power supply.

`PS`n`/S`n`/V_OUT_OK`

Reports the state of a power supply side.

TABLE 2-9 PS n/ S n /V_12V_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply side fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply side fault has occurred.

`PS`n`/S`n`/I_12V`

These threshold sensors report the power supply side 12V voltage reading.

`PS`n`/S`n`/V_IN_ERR`

Reports a power supply side fault.

TABLE 2-10 PS n/ S n /V_12V_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply side fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply side fault has occurred.

`PS`n`/S`n`/V_12V_ERR`

Reports a power supply side 12V voltage sensor fault.

TABLE 2-11 PS n/ S n /V_12V_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply side 12V voltage fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply side 12V voltage fault has occurred.

`PS`n`/S`n`/I_12V_ERR`

Reports a power supply side 12V voltage sensor fault.

TABLE 2-12 PS n/ S n /V_12V_ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply side 12V voltage fault has not occurred.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply side 12V voltage fault has occurred.

`PS`n`/S`n`/I_12V_WRN`

Reports that power supply side 12V output current exceeds 240A for 100 msec.

TABLE 2-13 PS n/ S n/ I_12V_WRN Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that a power supply side 12V current does not exceed 240A for 100 msec.
0x0002	Predictive Failure Asserted	Yes	This state indicates that a power supply side 12V current exceeds 240A for 100 msec.

`VPS`

VPS is the virtual power sensors and reports the total power used by the chassis (typically the sum of PS0/IN_POWER and PS1/IN_POWER).

Fan Sensors

The Sun Blade 6000 chassis contains six fan modules and the Sun Blade 6048 chassis contains eight fan modules. Each module contains two fans. Fan modules are numbered from 0 to 5 for Sun Blade 6000 and 0 to 7 for Sun Blade 6048. Fans are numbered from 0 to 1.

`FM`n`/F`n`/TACH`

These sensors report individual fan speeds. All fan speed sensors are configured to generate the same events and all faults are handled in the same way. They are not monitored when the chassis is powered off.

TABLE 2-14 FMn/Fn/TACH Readings
Threshold	Direction	Event	Description
Lower Non-Recoverable	Assert	Yes	Fan speed has decreased below lower non-recoverable threshold. This indicates that the fan has failed or has been removed.
Lower Non-Recoverable	Deassert	Yes	Fan speed has returned to normal from lower non-recoverable. This indicates that the fan has returned to normal or has been replaced.

`FM`n`/ERR`

These sensors report fan module failure status.

TABLE 2-15 FM n /ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Deasserted	No	This state indicates that the fan module has not failed.
0x0002	Predictive Failure Asserted	Yes	This state indicates that the fan module has failed.

Blade Module Sensors

The Sun Blade 6000 chassis has 10 blade slots for server or storage modules (blade modules) and blade slots are numbered from 0 to 9.

The Sun Blade 6048 chassis has 12 blade slots for server or storage modules (blade modules) and blade slots are numbered from 0 to 11.

`BL`n`/PRSNT`

These sensors report whether server modules are present in the specified slots.

TABLE 2-16 BL n /PRSNT Readings
Reading	State	Event	Description
0x0001	Device Absent	No	Server module is not present.
0x0002	State Present	No	Server module is present.

`BL`n`/STATE`

These sensors report the state of the server modules.

TABLE 2-17 BL n /STATE Readings
Reading	State	Event	Description
0x0001	Running	No	Server module is running.
0x0004	Power Off	No	Server module is not powered off.
0x0020	Off Duty	No	Server module is ready to remove.

`BL`n`/ERR`

These sensors report whether there is a fault on the server module.

TABLE 2-18 BL n /ERR Readings
Reading	State	Event	Description
0x0001	Predictive Failure Asserted	Yes	Server module has failed.
0x0002	Predictive Failure Deasserted	Yes	Server module has not failed.

`BL`n`/VPS`

These sensors report the virtual power for the server modules. This sensor should match the /SYS/VPS sensor reading on the server module. Slots are numbered from 0 to 9 for Sun Blade 6000 and 0 to 11 for Sun Blade 6048.

This sensor is only available on some server modules, and only if the server module is running ILOM 3.0. Otherwise, BLn/VPS will report "no reading". Refer to the server module documentation to determine whether or not this sensor is available.

Chassis Sensors

The following sensors are for the Sun Blade 6000 and Sun Blade 6048 chassis.

`HOT`

This sensor reports if any blade is requesting full fan speed due to high temperature.

TABLE 2-19 HOT Readings
Reading	State	Event	Description
0x0001	State Deasserted	No	This state indicates that no blade is requesting full fan speed.
0x0002	State Asserted	No	This state indicates that one ore more blades is requesting full fan speed.

`T_AMB`

T_AMB reports ambient air temperature based on available power supply inlet air temperature readings. This sensor is for monitoring only; no threshold is defined.

`P_OVER_WARN`

Reports power supply oversubscription state.

TABLE 2-20 P_OVER_WARN Readings
Reading	State	Event	Description
0x0001	State Deasserted	No	Power supplies are not oversubscribed; blade modules are allowed to turn on.
0x0002	State Asserted	No	Power supplies are oversubscribed; some blade modules might not turn on.

Types of Sensors

Discrete Sensors

Threshold Sensors

Displaying Sensors

Sensor Information

NEM Sensors

NEMn/PRSNT

NEMn/STATE

NEMn/ERR

Power Supply Sensors

PSn/PRST

PSn/IN_POWER

These threshold sensors report the input (AC) power to the power supplies in Watts.

PSn/OUT_POWER

These threshold sensors report the output (DC) power from the power supplies in Watts.

PSn/T_AMB

PSn/V_12V

PSn/V_3V3

PSn/I_3V3

PSn/V_3V3_ERR

PSn/TEMP_WRN

PSn/TEMP_ERR

PSn/FAN_ERR

PSn/FANn/TACH

PSn/Sn/V_OUT_OK

PSn/Sn/I_12V

PSn/Sn/V_IN_ERR

PSn/Sn/V_12V_ERR

PSn/Sn/I_12V_ERR

PSn/Sn/I_12V_WRN

VPS