Dell EMC Open Networking Troubleshooting Guide March 2019

Example of the fantool Output

Syntax: ./fantool <option> 
                                 -h := show this help
                                 test [[all] | fan controller] := test using the Fan Controller config file
                                 init := Initialize the fans to the default state
                                 set <fan | all> [speed in RPM | low | mid | high] := sets the fan(s) to the speed
                                 get <fan | all> := gets the speed of the specified fan or all fans in RPM
                                 
                              

In the fantool configuration output, the first six rows describe the six fans in your system and the devices that control the fans. The second portion lists the speeds for the fans: low, medium, high, and default.

The first portion of the output lists the fan IDs, name, the device that controls the fan, the fan address on the I2C bus, and the instance of the fan control within the chip. Also included is a description of which fan tray the fan is located in. The last two values in the configuration file output are the speed resolution and the number of pulses per second.

Example of the fantool Configuration File Output

0 | Fan 1 | MAX6620 | 0x2a | 0 | Fan Tray 0 | 4 | 2
                                 1 | Fan 2 | MAX6620 | 0x2a | 1 | Fan Tray 0 | 4 | 2
                                 2 | Fan 3 | MAX6620 | 0x29 | 0 | Fan Tray 1 | 4 | 2
                                 3 | Fan 4 | MAX6620 | 0x29 | 1 | Fan Tray 1 | 4 | 2
                                 4 | Fan 5 | MAX6620 | 0x29 | 2 | Fan Tray 2 | 4 | 2
                                 5 | Fan 6 | MAX6620 | 0x29 | 3 | Fan Tray 2 | 4 | 2
                                 =====
                                 0 | 5 | 2000 | 9000 | 19000 | 18000