Replace external rear components

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Replace a power supply unit

If either of the two power supply units (PSU) fails, the other unit takes the full load and the system can continue operation without interruption. The Universal Information LED on the control panel flashes slowly until the failed unit is replaced.

The PSUs can be replaced without powering down the appliance. The redundant feature keeps the appliance active while the failed PSU is replaced.

  1. Push the release tab on the rear of the PSU, as shown in the following figure.
    Figure 1. Removing a PSU from the chassis
    Close-up of the PSU
  2. Pull the PSU out using the provided handle. (The PSU wiring is designed to detach automatically when the PSU is pulled from the chassis).
  3. Replace the failed PSU with another PSU.
  4. Push the new PSU into the power bay until you hear a click.

Install an SFP+ / QSFP optical module

  1. Log in to the device as localadmin.
  2. At the command prompt, type poweroff.
  3. Remove the SFP+ / QSFP module from the packaging.
  4. Remove the black plastic protective cap from the optical side of the module.
  5. Insert the module into the network card until it clicks into place.
  6. Insert the fiber optic cable into the SFP+ / QSFP module.
  7. Restart system and configure the network interface. For more information, see the Appliance Configuration Guide.