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Install and maintain

Replace the boot media - AFF C250

Contributors Sreeju-mm thrisun

To replace the boot media, you must remove the impaired controller module, install the replacement boot media, and transfer the boot image to a USB flash drive.

Step 1: Remove the controller module

To access components inside the controller module, you must first remove the controller module from the system, and then remove the cover on the controller module.

  1. If you are not already grounded, properly ground yourself.

  2. Unplug the controller module power supplies from the source.

  3. Release the power cable retainers, and then unplug the cables from the power supplies.

  4. Insert your forefinger into the latching mechanism on either side of the controller module, press the lever with your thumb, and gently pull the controller a few inches out of the chassis.

    Note If you have difficulty removing the controller module, place your index fingers through the finger holes from the inside (by crossing your arms).
    drw a250 pcm remove install

    Callout number 1


    Callout number 2

    Latching mechanism

  5. Using both hands, grasp the controller module sides and gently pull it out of the chassis and set it on a flat, stable surface.

  6. Turn the thumbscrew on the front of the controller module anti-clockwise and open the controller module cover.

    drw a250 open controller module cover

    Callout number 1


    Callout number 2

    Controller module cover.

  7. Lift out the air duct cover.

    drw a250 remove airduct cover

Step 2: Replace the boot media

You locate the failed boot media in the controller module by removing the air duct on the controller module before you can replace the boot media.

You need a #1 magnetic Phillips head screwdriver to remove the screw that holds the boot media in place. Due to the space constraints within the controller module, you should also have a magnet to transfer the screw on to so that you do not lose it.

You can use the following video or the tabulated steps to replace the boot media:

Animation - Replace the boot media
  1. Locate and replace the impaired boot media from the controller module.

    drw a250 replace boot media

    Callout number 1

    Remove the screw securing the boot media to the motherboard in the controller module.

    Callout number 2

    Lift the boot media out of the controller module.

  2. Using the #1 magnetic screwdriver, remove the screw from the impaired boot media, and set it aside safely on the magnet.

  3. Gently lift the impaired boot media directly out of the socket and set it aside.

  4. Remove the replacement boot media from the antistatic shipping bag and align it into place on the controller module.

  5. Using the #1 magnetic screwdriver, insert and tighten the screw on the boot media.

    Note Do not apply force when tightening the screw on the boot media; you might crack it.

Step 3: Transfer the boot image to the boot media

The replacement boot media that you installed is without a boot image so you need to transfer a boot image using a USB flash drive.

  • You must have a USB flash drive, formatted to MBR/FAT32, with at least 4GB capacity

  • A copy of the same image version of ONTAP as what the impaired controller was running. You can download the appropriate image from the Downloads section on the NetApp Support Site

    • If NVE is enabled, download the image with NetApp Volume Encryption, as indicated in the download button.

    • If NVE is not enabled, download the image without NetApp Volume Encryption, as indicated in the download button.

  • If your system is an HA pair, you must have a network connection.

  • If your system is a stand-alone system you do not need a network connection, but you must perform an additional reboot when restoring the var file system.

    1. Download and copy the appropriate service image from the NetApp Support Site to the USB flash drive.

    2. Download the service image to your work space on your laptop.

    3. Unzip the service image.

      Note If you are extracting the contents using Windows, do not use winzip to extract the netboot image. Use another extraction tool, such as 7-Zip or WinRAR.

      There are two folders in the unzipped service image file:

      • boot

      • efi

    4. Copy the efi folder to the top directory on the USB flash drive.

      The USB flash drive should have the efi folder and the same Service Image (BIOS) version of what the impaired controller is running.

    5. Remove the USB flash drive from your laptop.

    6. If you have not already done so, install the air duct.

      drw a250 install airduct cover
    7. Close the controller module cover and tighten the thumbscrew.

      drw a250 close controller module cover

      Callout number 1

      Controller module cover

      Callout number 2


    8. Align the end of the controller module with the opening in the chassis, and then gently push the controller module halfway into the system.

    9. Plug the power cable into the power supply and reinstall the power cable retainer.

    10. Insert the USB flash drive into the USB slot on the controller module.

      Make sure that you install the USB flash drive in the slot labeled for USB devices, and not in the USB console port.

    11. Push the controller module all the way into the chassis:

    12. Place your index fingers through the finger holes from the inside of the latching mechanism.

    13. Press your thumbs down on the orange tabs on top of the latching mechanism and gently push the controller module over the stop.

    14. Release your thumbs from the top of the latching mechanisms and continue pushing until the latching mechanisms snap into place.

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

      The controller module should be fully inserted and flush with the edges of the chassis.

    15. Interrupt the boot process to stop at the LOADER prompt by pressing Ctrl-C when you see Starting AUTOBOOT press Ctrl-C to abort…​.

      If you miss this message, press Ctrl-C, select the option to boot to Maintenance mode, and then halt the controller to boot to LOADER.

    16. For systems with one controller in the chassis, reconnect the power and turn on the power supplies.

      The system begins to boot and stops at the LOADER prompt.

    17. Set your network connection type at the LOADER prompt:

      • If you are configuring DHCP: ifconfig e0a -auto

        Note The target port you configure is the target port you use to communicate with the impaired controller from the healthy controller during var file system restore with a network connection. You can also use the e0M port in this command.
      • If you are configuring manual connections: ifconfig e0a -addr=filer_addr -mask=netmask -gw=gateway-dns=dns_addr-domain=dns_domain

        • filer_addr is the IP address of the storage system.

        • netmask is the network mask of the management network that is connected to the HA partner.

        • gateway is the gateway for the network.

        • dns_addr is the IP address of a name server on your network.

        • dns_domain is the Domain Name System (DNS) domain name.

          If you use this optional parameter, you do not need a fully qualified domain name in the netboot server URL. You need only the server's host name.

    Note Other parameters might be necessary for your interface. You can enter help ifconfig at the firmware prompt for details.