User manual

SwitchX®-2 12 Port Ethernet Switch System Hardware User Manual Rev 1.0

Mellanox Technologies

6 Troubleshooting

As soon as a switch is plugged in make sure that the green power LEDs on the PS units are on.

Issue 1. Switch Status (health) LED:

If this LED is red unplug the switch and call your Mellanox representative.

If this LED is off:

1. Check that the there is adequate ventilation. Are the fan LEDs showing that the fans

are all up and running?

2. Make sure that there is nothing blocking the front or rear of the switch and that the

fan modules and ventilation holes are not blocked (especially dust over the holes).

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.

Issue 2. Power supply unit:

If the LED on the PS unit is not lit or is red, check that the power cable is plugged into a work-

ing outlet.

1. Check that the power cable has a voltage within the range of 100 - 240 volts AC.

2. Remove and reinstall the power cable.

Issue 3. The green power LED for the fans does not come on:

1. Check that at least one Power LED is green.

Issue 4. The link LED for the connector does not come on:

1. Check that both ends of the cable are connected.

2. Check that the locks on the ends are secured.

3. Make sure that the latest firmware version is installed on all of the HCA cards and

the switch.

4. If media adapters are used, check that the all connections are good, tight, and secure.

Issue 5. The activity LED does not come on:

When running IB check that the Subnet Manager has been started.

Issue 6. The switch is off:

1. Unplug the switch.

2. Wait 5 minutes.

3. Plug in the switch.

4. If the switch does not come on, check the power supplies.

5. If the switch comes on, Use the MLNX-OS® management CLI to determine the

cause of the Shutdown.

6. Check the temperature.

7. Check the Fan status.

Do not run the switch if the System Status LED for the Fans is Red!