Administrator Guide
Thermal Subsystem Telemetry
10 Telemetry Streaming with iDRAC9 - Power and Thermal Metrics | ID 440
3 Thermal Subsystem Telemetry
This section describes metrics in the thermal subsystem telemetry reports and workflows to use the reports to
generate useful insights.
3.1 ThermalMetrics
Following are the metrics in the ThermalMetrics report.
Metric
Description
ComputePower
Compute power that is not wasted
ITUE
The power utilization efficiency is expressed as the ratio of total system
power to compute power.
PowerToCoolRatio
Fan Power over system power ratio (PCTR)
PSUEfficiency
PSU efficiency in percentage
SysAirFlowEfficiency
System airflow efficiency metric (SAFE)
SysAirflowPerFanPower
System airflow per unit of system fan power consumption
SysAirflowPerSysInputPower
System airflow per unit of system input [DC] power consumption
SysAirflowUtilization
Specifies the system airflow utilization (CFM/Max CFM). CFM (cubic
feet per min)
SysNetAirflow
System net airflow
SysRackTempDelta
Temperature difference between exhaust air and inlet air temperature
of the server
TotalPSUHeatDissipation
Heat that is dissipated from the PSU as a result of its inefficiency.
3.2 Temperature Sensors
The following sensor reports include temperature reading.
3.2.1 CPUSensor
The following metric is in the CPUSensor report.
Metric
Description
TemperatureReading
CPU temperature
3.2.2 MemorySensor
The following metric is in the MemorySensor report.
Metric
Description
TemperatureReading
DIMM temperature
3.2.3 FCSensor
The following metric is in the FCSensor report.
Metric
Description
TemperatureReading
FibreChannel ASIC temperature