To obtain the Quadra device NVMe SMART log, use the following command:
sudo nvme smart-log /dev/nvme0
Here is an example of the output:
Smart Log for NVME device:nvme0 namespace-id:ffffffff critical_warning : 0 temperature : 38 C available_spare : 100% available_spare_threshold : 20% percentage_used : 0% data_units_read : 0 data_units_written : 0 host_read_commands : 0 host_write_commands : 0 controller_busy_time : 0 power_cycles : 0 power_on_hours : 0 unsafe_shutdowns : 0 media_errors : 0 num_err_log_entries : 0 Warning Temperature Time : 0 Critical Composite Temperature Time : 0 Temperature Sensor 1 : 38 C Temperature Sensor 2 : 41 C Thermal Management T1 Trans Count : 0 Thermal Management T2 Trans Count : 0 Thermal Management T1 Total Time : 0 Thermal Management T2 Total Time : 0
Below is an explanation of the sensors:
Temperature Sensor 1 | represents the board temperature. |
|---|---|
Temperature Sensor 2 | represents the on die temperature. |
temperature | represents the composite temperature. |
When determining throttling behavior, the composite temperature is used.