C H A P T E R  4

Sensors and Indicators

This chapter describes the sensors and indicators that can be accessed through the ILOM.

Sensors report physical information about the server, including voltages, temperatures, fan speeds, and installation and removal of components. Indicators report important server conditions.

All sensors and indicators are IPMI-compliant.

Entity Presence

These sensors report the presence or absence of system components.

 

Temperature and Power

These sensors report on the temperature sensors and the power consumption.


TABLE 4-4 Temperature and Power Sensors

Name

Type

Reading

/SYS/MB/T_AMB_FRONT

Temperature

24.000 degrees C

/SYS/MB/T_AMB_REAR

Temperature

55.000 degrees C

/SYS/VPS

System power (watts)

88.200 Watts

/SYS/HOT

OEM

State Asserted


Fan Failure

These sensors assert predictive failure when a fan is expected to fail. Normally, they should read “Predictive Failure Deasserted.”


TABLE 4-5 Fan Failure Sensors

Name

Type

Reading

/SYS/FM0/ERR

Fan

Predictive Failure Asserted

/SYS/FM1/ERR

Fan

Predictive Failure Deasserted

/SYS/FM2/ERR

Fan

Predictive Failure Deasserted

/SYS/FM3/ERR

Fan

Predictive Failure Asserted

/SYS/FM4/ERR

Fan

Predictive Failure Asserted

/SYS/FM5/ERR

Fan

Predictive Failure Deasserted

/SYS/FM6/ERR

Fan

Predictive Failure Deasserted

/SYS/FM7/ERR

Fan

Predictive Failure Asserted


Chassis Fan Speed

These sensors indicate the speed of the chassis fans. The chassis fans are divided into eight modules (FM0 through FM7) with two fans each (F0 and F1).


TABLE 4-6 Chassis Fan Speed Measurements

Name

Type

Reading

/SYS/FM0/F0/TACH

Fan

0.000 RPM

/SYS/FM0/F1/TACH

Fan

0.000 RPM

/SYS/FM1/F0/TACH

Fan

5600.000 RPM

/SYS/FM1/F1/TACH

Fan

5400.000 RPM

/SYS/FM2/F0/TACH

Fan

5400.000 RPM

/SYS/FM2/F1/TACH

Fan

5400.000 RPM

/SYS/FM3/F0/TACH

Fan

0.000 RPM

/SYS/FM3/F1/TACH

Fan

0.000 RPM

/SYS/FM4/F0/TACH

Fan

0.000 RPM

/SYS/FM4/F1/TACH

Fan

0.000 RPM

/SYS/FM5/F0/TACH

Fan

5300.000 RPM

/SYS/FM5/F1/TACH

Fan

5600.000 RPM

/SYS/FM6/F0/TACH

Fan

5300.000 RPM

/SYS/FM6/F1/TACH

Fan

5400.000 RPM

/SYS/FM7/F0/TACH

Fan

0.000 RPM

/SYS/FM7/F1/TACH

Fan

0.000 RPM


 

NEM and Blade Presence

These sensors indicate whether there are NEMs in NEM slots 0 and 1, and whether any blades are in slots 0 through 11.

The X6275 server module has two nodes, 0 and 1.

For example, for an X6275 server module in slot 6, node 0 appears to be in slot 6, and node 1 appears to be in slot 18.


TABLE 4-7 NEM and Blade Presence

Name

Type

Reading

/SYS/NEM0/PRSNT

Entity Presence

Present

/SYS/NEM1/PRSNT

Entity Presence

Present

/SYS/BL0/PRSNT

Entity Presence

Present

/SYS/BL1/PRSNT

Entity Presence

Absent

/SYS/BL2/PRSNT

Entity Presence

Present

/SYS/BL3/PRSNT

Entity Presence

Present

/SYS/BL4/PRSNT

Entity Presence

Absent

/SYS/BL5/PRSNT

Entity Presence

Absent

/SYS/BL6/PRSNT

Entity Presence

Absent

/SYS/BL7/PRSNT

Entity Presence

Absent

/SYS/BL8/PRSNT

Entity Presence

Absent

/SYS/BL9/PRSNT

Entity Presence

Absent

/SYS/BL10/PRSNT

Entity Presence

Absent

/SYS/BL11/PRSNT

Entity Presence

Absent

/SYS/BL12/PRSNT

Entity Presence

Present

/SYS/BL13/PRSNT

Entity Presence

Absent

/SYS/BL14/PRSNT

Entity Presence

Present

/SYS/BL15/PRSNT

Entity Presence

Present

/SYS/BL16/PRSNT

Entity Presence

Absent

/SYS/BL17/PRSNT

Entity Presence

Absent

/SYS/BL18/PRSNT

Entity Presence

Absent

/SYS/BL19/PRSNT

Entity Presence

Absent

/SYS/BL20/PRSNT

Entity Presence

Absent

/SYS/BL21/PRSNT

Entity Presence

Absent

/SYS/BL22/PRSNT

Entity Presence

Absent

/SYS/BL23/PRSNT

Entity Presence

Absent


Power Supplies

These readings show the state of the power supplies, which are located on the chassis.

Power Supply Present

This sensor indicates whether the power signal is present.


TABLE 4-8 Power Supply Present

Name

Type

Reading

/SYS/PS0/PRSNT

Entity Presence

Absent

/SYS/PS1/PRSNT

Entity Presence

Present


Power Supply OK

These readings are asserted when the power supply is OK and deasserted when the designated power supply generates a fault.


TABLE 4-9 Power Supply OK

Name

Type

Reading

/SYS/PS0/PWROK0

Power Supply

Disabled

/SYS/PS0/PWROK1

Power Supply

Disabled

/SYS/PS0/PWROK2

Power Supply

Disabled

/SYS/PS1/PWROK0

Power Supply

State Asserted

/SYS/PS1/PWROK1

Power Supply

State Asserted

/SYS/PS1/PWROK2

Power Supply

State Deasserted


Power Supply Error

Each power supply has three AC inputs. These readings are deasserted when the AC input is OK, and asserted when there is a problem with the corresponding AC input.


TABLE 4-10 Error Indication Sensors

Name

Type

Reading

/SYS/PS0/AC0_ERR

Power Supply

Disabled

/SYS/PS0/AC1_ERR

Power Supply

Disabled

/SYS/PS0/AC2_ERR

Power Supply

Disabled

/SYS/PS1/AC0_ERR

Power Supply

State Deasserted

/SYS/PS1/AC1_ERR

Power Supply

State Deasserted

/SYS/PS1/AC2_ERR

Power Supply

Not Readable



Indicators

These report the state of the system indicators, including LEDs.

See the Sun Blade X6275 Installation Guide for descriptions of the LEDs and indicators.

 


TABLE 4-11 Indicators

Path

Indicator

Description

/SYS/OK

Green OK LED

Slow Blink

/SYS/OK2RM

Blue OK to Remove LED

Off

/SYS/SERVICE

Amber Service LED

Off

/SYS/LOCATE

White Locate LED

Off

/SYS/MB/P0/SERVICE

CPU error condition

Off

/SYS/MB/P0/D1/SERVICE

DIMM error condition

Off

/SYS/MB/P0/D3/SERVICE

DIMM error condition

Off

/SYS/MB/P0/D5/SERVICE

DIMM error condition

Off