Powering on the optional 2U SAS expansion enclosures

After you install all the hardware components, power on the optional 2U SAS expansion enclosures and check their status.

About this task

Attention: Do not power on an expansion enclosure with any open bays or slots.
  • Every unused drive bay must be occupied by a filler panel.
  • Filler panels must be installed in all empty host interface adapter slots.
Open bays or slots disrupt the internal air flow, causing the drives to receive insufficient cooling.

Procedure

To power on the 2U SAS expansion enclosures, complete the following steps.

  1. Use the supplied power cords to connect both power supply units of the first expansion enclosure to their power sources.
    If the power sources have circuit breakers or switches, ensure that they are turned on. The expansion enclosure does not have power switches. Repeat this step for each expansion enclosure in the system.
    Note: Each enclosure has two power supply units. To provide power failure redundancy, connect the two power cords to separate power circuits.
  2. From the rear of the rack, check the LEDs on each expansion enclosure (see Figure 1).
    Figure 1. Expansion enclosure LEDs
    Image of LED indicator lights on each expansion canister
    •  1  Power
    •  2  Status
    •  3  Fault
    The canister is ready with no critical errors when Power is illuminated, Status is on, and Fault is off.
  3. Wait for all expansion canisters to finish powering on before you proceed with the system installation process.