Powering on the 5U expansion enclosure

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Use the following procedure to provide power to the 5U expansion enclosure as part of the initial installation process or after a service procedure.

Before you begin

Important: Before you connect the power cables to the rear of the enclosure, always check that the expansion enclosure is secured in the rack. If needed, tighten the thumbscrews on the front of the enclosure ( 2  in Figure 1) to ensure that the enclosure drawer does not roll open.

About this task

The 5U expansion enclosure has two power supply units (PSUs) that are accessible from the front of the enclosure ( 4  in Figure 1). As the figure also shows, the PSUs are covered by the 1U fascia ( 5 ).

Figure 1. Features on the front of the 5U expansion enclosure
Front of the enclosure
  •  1  Display panel LEDs
  •  2  Rack retention thumb screws
  •  3  Power supply unit LEDs
  •  4  Power supply units (PSUs)
  •  5  PSU fascia (1U)
  •  6  Front fascia (4U)

Each PSU has a power supply connector and power cable, which are accessible from the back of the enclosure. Power® is provided by plugging a C19-C20 power cable into each power supply unit and, if necessary, turning on the power source. The expansion enclosure does not have a power button.

Procedure

  1. Connect the C19-C20 power cables to the power connectors on the rear of the expansion enclosure.
    The enclosure automatically powers on and begins its Power On Self-Tests (POST).
  2. Secure the power cables in the cable retainer at each power connector on the rear of the enclosure, as shown in Figure 2. Also, ensure that each cable is installed along one of the cable management arms. The cable management arms also support the SAS cables.
    Figure 2. Secure power cables
    Secure power cables
    Important: Always secure each power cable with a cable retainer and ensure that the cable is installed along one of the cable management arms. When secured, the power and SAS cables stay connected when you slide the expansion enclosure out of the rack to perform service tasks.
    Figure 3. Power and SAS cable connections on the back of the enclosure
    Cable connections on the back of the enclosure
  3. Verify that the expansion enclosure and its components are operating as expected.
    On the back of the expansion enclosure, all four fans and the expansion canister indicators ( 3  and  8  in Figure 4) become active when the power is connected.
    Figure 4. Features on the rear of the 5U expansion enclosure
    Features on the rear of the expansion enclosure
    •  1  Power cable connector for PSU 2
    •  2  Power cable retention clamps
    •  3  Fan module
    •  4  Fan release latch
    •  5  Fan fault indicator
    •  6  Expansion canister
    •  7  SAS ports and indicators
    •  8  Expansion canister indicators
    •  9  Power cable connector for PSU 1

    On the front of the enclosure, the indicators on the front display panel and each PSU ( 1  and  3  in Figure 1) are also lit when the power is connected. See 5U expansion enclosure LEDs and indicators for information about the status that is provided by the indicators.

  4. Verify that the system recognizes the expansion enclosure.
    In the management GUI, view information about the system status and the expansion enclosure.
    • If a new expansion enclosure was installed, make sure that the enclosure was discovered by the system. A newly recognized expansion enclosure is visible in the management GUI.
    • If the expansion enclosure was powered off as part of a service procedure, view the information in the management GUI to confirm that the enclosure is operating as expected. You can also access the Event Log to view enclosure and component events and complete any remaining fix procedures.