Maintenance and Field Replacement

This section covers the following topics:

Considerations

Review the following considerations when installing the device.

  • All fans and power supplies are hot-swappable.
  • The switch can be running while a power supply is being installed or removed, but the power supply being replaced must not be connected to a power source.
  • All slots must be filled or covered with a blank for operation (even though the power supply or fans may not be functional).
  • Before you begin, refer to the Arista Networks document Safety Information and Translated Safety Warnings: https://www.arista.com/en/support/product-documentation.
    Note: Descriptions for removing and replacing power supplies and fans are for a representative power supply or fan. Locations of status indicator LEDs may differ. Refer to your device's front and rear panel illustrations to locate the appropriate LED.

Power Supplies

The following steps are required when removing power supplies from a switch.

Note: Only a representative power supply module is shown in Figure 1. For the location of the power supply on your switch, refer to Rear Panel.

Removing a Power Supply

  1. Ground yourself with an ESD wrist strap.
  2. Power down the power supply, which will be removed by disconnecting the AC power cable.
  3. Push the power supply release lever and remove the power supply Figure 1.
Figure 1. Removing and Installing Power Supply

1 Release lever
2 Remove PSU

Installing a Power Supply

You must make space for installing the power supply by removing an existing one Removing a Power Supply.

  1. Remove the replacement power supply from its packaging.
  2. Slide the new power supply into the empty slot.
  3. Slide the new power supply into the switch until the power supply is fully seated, and the release lever snaps into place Figure 1.
  4. Connect the power cord to the power supply.
  5. Verify the LEDs on the power supply.
    Note: The Power Supply status LED should be a steady green for normal operation.
  6. Verify the new power supply operation by issuing the show environment power command. 
    switch#show environment power

  7. The command output will list the power supplies in operation and should include the one you replaced.

Fan Modules

Note: Hot-swap fans within 30 seconds to prevent the switch from overheating. Assure that the module you are replacing matches those already installed in the switch.

Removing a Fan Module

The following steps are required when removing or replacing fans from a switch.

Note: Only a representative fan module is shown in Figure 2. For the location of the fan modules on your switch, refer to the Rear Panel.
  1. Ground yourself with an ESD wrist strap.
  2. Push the fan module release lever and slide the fan module out of the switch.
Figure 2. Removing Fan Module

1 Release lever

Installing a Fan Module

You must make space for installing the fan module by removing an existing one.

  1. Remove the replacement fan from its packaging.
  2. Slide the new fan module into the switch until the module is fully seated, and the release lever snaps into place (Figure 3).
    Figure 3. Inserting Fan Module

  3. Verify that the fan module is working normally.
    Note: The fan module status LED should be a steady green for normal operation.