Maintenance and Field Replacement

 

This section discusses the following topics:

Considerations

Tips and requirements for maintenance issues.

  • 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 at 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 and replacing power supplies from a switch.

 

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

 

Removing a Power Supply

Complete the following steps to remove 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. 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).

To install a power supply, complete the following steps:
  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 (Removing a Power Supply).
  4. Connect the power cord to the power supply.
  5. Verify the LED(s) 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

     

    The command output lists the power supplies in operation and includes the one you replaced.

     

Fan Modules

Fan module requirements when hot-swapping the modules.

 

Note: Hot-swap fans within 30 seconds to prevent the switch from overheating. Ensure that the module you replace 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 - Removing Fan Module. Refer to the rear panel for the location of the fan modules on your switch.

 

  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).

     

    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 (Figure 2 - Removing Fan Module).

Complete the following steps to install a fan module.

  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 - Inserting Fan Module).

     

    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.