Appendix B Thermal Threshold Definitions - Mellanox Technologies SX1012 User Manual

Appendix B: Thermal Threshold Definitions
There are three thermal threshold definitions for the SwitchX® switch device which impact the
overall switch system operation state: Warning, Critical and Emergency.
1.Warning – 105C
On managed systems only: When the SwitchX® device crosses the 100C threshold, a Warning
Threshold message will be issued by the MLNX-OS management SW, indicating to system
administration that the switch has crossed the Warning threshold.
Note that this temperature threshold does not require nor lead to any action by hardware (such as
switch shutdown).
2.Critical – 120C
When the SwitchX® device crosses this temperature, the firmware will automatically shut down
the device.
3.Emergency – 130C
In case the firmware fails to shut down the SwitchX® device upon crossing the Critical thresh-
old, the SwitchX® device will auto-shutdown upon crossing the Emergency (130C) threshold.
98 Mellanox Technologies Rev 1.4