C H A P T E R  3

Sensor Definitions

This chapter lists and describes the Sun Blade X6450 server module sensors for a server module equipped with ILOM 3.0.

Instructions for displaying the sensors are in the ILOM 3.0 documentation collection.

Server Module and System Sensors

The sensors display information about the server module and the chassis.

Asserted or Deasserted Readings

Some sensors are asserted or deasserted. For example PRSNT sensors are asserted if the device is present and deasserted if it is not. ERR sensors are asserted if an error condition is present, and deasserted if it is not. The readings for these sensors are:


Server Module Sensors

The sensors in TABLE 3-1 and TABLE 3-2 display information about conditions on the server module.


TABLE 3-1 Server Module Sensors

Sensor

Description

HOT

Temperature sensor on server module.

SYS/PWRCTLSTATE

Deasserted when the server module can be powered-on.

SYS/SLOTID

The slot where the server module resides:

  • 0 through 9 for Sun Blade 6000 chassis
  • 0 through 11 for Sun Blade 6048 chassis

SYS/VPS

Server module power consumption in Watts.

MB/*

Various motherboard sensors. See TABLE 3-2.


 


TABLE 3-2 Server Module Motherboard Sensors

Sensor

Description

MB/MCH/DLn/PRSNT

DIMM presence

L = A to D, where:

  • A - CPU 0
  • B - CPU 1
  • C - CPU 2
  • D - CPU 3

n = The number of DIMMs configured for each CPU. A CPU can have between 1 and 6 DIMMs numbered 0 to 5.

MB/Pn/PRSNT

Indicates CPU presence. n is 0 through 3.

MB/Pn/V_VCC

Identifies the voltage level for P0 through P3.

IPMI-only sensors.
The following three sensors are only visible through the IPMI interface.

MB/Pn/TCCAT

n is 0 or 1. This is the PECI reading from CPU core.

ACPI

The host ACPI status.

  • 0x1 - host in S0/G0 (working) state.
  • 0x20 host in S5/G2 (soft-off) state.

NMIBTN

NMI button status (log only sensor). When the NMI button is pressed, this sensor logs a NMI/Diag Interrupt.

DIMMs 0 through 1

MB/T_DIMMn

Reports the temperature of the DIMMs.

  • upper_critical_threshold - 75.000° C
  • upper_noncritical_threshold - 72.000° C

Thermal Overload

MB/THERMOVRD

Server module is requesting 100% fan speed from the chassis to cool itself down. This is not logged.

Ambient Temperature Sensors 0 through 3

MB/T_VRDn

Ambient temperature sensors. If the value exceeds the upper nonrecoverable threshold value, the host powers down.

Only MB/T_VRD1 has thresholds.

upper critical threshold - 60° C

upper nonrecoverable threshold - 65° C

Motherboard Voltage Sensors

MB/V_+0V9Bn
n = 0 or 1

upper critical threshold - 0.989 Volts

lower critical threshold - 0.806 Volts

MB/V_+12VCPUn

n = 0 or 1

upper critical threshold - 13.167 Volts

lower critical threshold - 10.773 Volts

MB/V_+12V

upper nonrecoverable threshold - 14.427 Volts

upper critical threshold - 13.167 Volts

lower critical threshold - 10.773 Volts

lower nonrecoverable threshold - 9.513 Volts

MB/V_+1V25STBY

upper critical threshold - 1.373 Volts

lower critical threshold - 1.096 Volts

MB/V_+1V2NIC

upper critical threshold - 1.312 Volts

lower critical threshold - 1.074 Volts

MB/V_+1V5Bn
n
= 0 or 1

upper critical threshold - 1.646 Volts

lower critical threshold - 1.349 Volts

MB/V_+1V5

upper critical threshold - 1.646 Volts

lower critical threshold - 1.349 Volts

MB/V_+1V8Bn

n = 0 or 1

upper critical threshold - 1.978 Volts

lower critical threshold - 1.617 Volts

MB/V_+1V8STBY

upper critical threshold - 1.978 Volts

lower critical threshold - 1.617 Volts

MB/V_+1V9NIC

upper critical threshold - 2.083 Volts

lower critical threshold - 1.709 Volts

MB/V_+2V5STBY

upper critical threshold - 2.743 Volts

lower critical threshold - 2.249 Volts

MB/V_+3V3STBYn

n = 0 or 1

MB/V_+3V3STBY0

  • upper critical threshold - 3.667 Volts
  • lower critical threshold - 2.993 Volts

MB/V_+3V3STBY1

  • upper critical threshold - 3.642 Volts
  • lower critical threshold - 2.975 Volts

MB/V_+3V3

upper critical threshold - 3.616 Volts

lower critical threshold - 3.958 Volts

MB/V_+5V

upper critical threshold - 5.483 Volts

lower critical threshold - 4.488 Volts

MB/V_VTT

upper nonrecoverable threshold - 1.449 Volts

upper critical threshold - 1.386 Volts

lower critical threshold - 1.027 Volts



System Sensors

These sensors appear on the server module’s sensor list, but they provide information about conditions elsewhere in the chassis.

They include:

Server Modules by Slot ID (BLn)

These sensors provide information about the other server modules in the chassis.

If a slot number is missing from this list, it means either:

To see the slot ID of the current server module, see SYS/SLOTID in TABLE 3-1.

The slots ID numbers in TABLE 3-1 are represented by the variable n, where:

Chassis Management Module Sensors

These sensors report on the condition of the Chassis Management Module (CMM).


TABLE 3-4 Server Module Sensors

Sensor

Description

CMM/ERR

Predictive failure for CMM

CMM/PRSNT

CMM is present


Fan Sensors

These sensors show the state of the system fans.

Network Expansion Modules and PCIe Express Modules

These sensors show the condition of Network Expansion Modules (NEMs) and PCIe Express Modules.

Power Supply Sensors

These sensors provide information about the chassis power supplies.

The chassis has two power modules. These appear in TABLE 3-7 as PSn, where n is 0 or 1.

Each power module has two or three sides. These appear in TABLE 3-7 as Sx where x is:

Fabric Expansion Modules Sensor and Raid Expansion Module Sensors

These sensors show the condition of Fabric Expansion Modules (FEMs) and Raid Expansion Modules (REMs).


TABLE 3-8 Power Supply Sensors

Sensor

Description

MB/FEM/PRSNT

Asserted when fabric expansion module is present

MB/REM/PRSNT

Asserted when raid expansion module is present