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Rev 1.0
Replace defective leaf fan modules as soon as they are identified.
Should any of the leaf boards shut down due to over temperature, it may be necessary
to reboot the chassis.
10.3.3 Yellow LED for the Spine Fan on the Management Module is Lit
Step 1.
Check the MLNX-OS management for confirmation and possible explanation of the
alert.
Step 2.
Determine which spine has a defective fan by checking the Fan LEDs on all of the
spines.
Step 3.
Make sure that there is nothing blocking the front or rear of the chassis and that the fan
modules and ventilation holes are not blocked (especially dust over the holes).
Step 4.
If you find dust blocking the holes it is recommended to clean the fan unit and remove
the dust from the front and rear panels of the switch using a vacuum cleaner.
Step 5.
Remove and reinstall the fan unit of the spine. Make sure the mating connector of the
new unit is free of any dirt and/or obstacles. See Section 5.4 on page 70.
Step 6.
Replace the spine fan module.
Replace defective spine fan modules as soon as they are identified.
10.4 Spine Board
The yellow LED on the Spine board is lit:
Step 1.
Check the MLNX-OS management for confirmation and possible explanation of the
alert.
Step 2.
Make sure that there is nothing blocking the front or rear of the chassis and that the fan
modules and ventilation holes are not blocked (especially dust over the holes).
Step 3.
If you find dust blocking the holes it is recommended to clean the fan unit and remove
the dust from the front and rear panels of the switch using a vacuum cleaner.
Step 4.
Remove and reinstall the spine board. Make sure the mating connectors of the unit is
free of any dirt and/or obstacles. See Section 5.3 on page 68.
Step 5.
Make sure that the spine and the Leafs both have the same version of FW.
Step 6.
Reburn the FW and remove and reinstall the spine.
Step 7.
Replace the spine board.
52
TroubleShooting
Mellanox Technologies
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