Installing the controller

After you install the components into the controller module, you must install the controller module back into the system chassis and boot the operating system.

About this task

For HA pairs with two controller modules in the same chassis, the sequence in which you install the controller module is especially important because it attempts to reboot as soon as you completely seat it in the chassis.


  1. If you are not already grounded, properly ground yourself.
  2. If you have not already done so, replace the cover on the controller module.
  3. Align the end of the controller module with the opening in the chassis, and then gently push the controller module halfway into the system.
    Note: Do not completely insert the controller module in the chassis until instructed to do so.
  4. Cable the management and console ports only, so that you can access the system to perform the tasks in the following sections.
    Note: You will connect the rest of the cables to the controller module later in this procedure.
  5. Complete the reinstallation of the controller module:
    1. If you have not already done so, reinstall the cable management device.
    2. Firmly push the controller module into the chassis until it meets the midplane and is fully seated.
      The locking latches rise when the controller module is fully seated.
      Attention: Do not use excessive force when sliding the controller module into the chassis to avoid damaging the connectors.

      The controller module begins to boot as soon as it is fully seated in the chassis. Be prepared to interrupt the boot process.

    3. Rotate the locking latches upward, tilting them so that they clear the locking pins, and then lower them into the locked position.
    4. Interrupt the boot process by pressing Ctrl-C when you see Press Ctrl-C for Boot Menu.
    5. Select the option to boot to Maintenance mode from the displayed menu.