Replacing the compute node in the chassis

After you remove the failed node from the cluster, you can remove the node from the chassis, and install the replacement node.

Before you begin

  • You have an electrostatic discharge (ESD) wristband, or you have taken other antistatic protection.
  • You have the replacement compute node.

About this task

If your nodes run on NetApp HCI Bootstrap OS version 1.7 or later, you must remove the compute node asset using the management node APIs after you physically remove the node from the chassis.

Removing the compute node asset in NetApp HCI 1.7 and later

Steps

  1. Put on antistatic protection.
  2. Unpack the new node, and set it on a level surface near the chassis.
    Keep the packaging material for when you return the failed node to NetApp.
  3. Label each cable that is inserted at the back of the node that you want to remove.
    After you install the new node, you must insert the cables back into the original ports.
    The following figure shows the six-cable configuration of a compute node:

    This figure shows the six-cable configuration of a compute node with the ports labeled.
    Port Details
    Port A 1/10GbE RJ45 port for NetApp HCI management traffic
    Port B 1/10GbE RJ45 port for NetApp HCI management traffic
    Port C 10/25GbE SFP+ or SFP28 port for vMotion and virtual machine network traffic
    Port D 10/25GbE SFP+ or SFP28 port for iSCSI traffic
    Port E 10/25GbE SFP+ or SFP28 port for iSCSI traffic
    Port F 10/25GbE SFP+ or SFP28 port for vMotion and virtual machine network traffic
    IPMI 1/10GbE RJ45 port for out-of-band management

    The following figure shows the two-cable configuration of a compute node:
    This figure shows the two-cable configuration of a compute node with the ports labeled.

    Port Details
    Ports D and E Two SFP28/SFP+ cables or transceivers for shared management, virtual machines, and storage connectivity
    IPMI 1/10GbE RJ45 port for out-of-band management
  4. Disconnect all the cables from the node.
  5. Pull down the cam handle on the right side of the node, and pull the node out using both the cam handles.
    The cam handle that you pull down has an arrow on it to indicate the direction in which it moves. The other cam handle does not move and is there to help you pull the node out.
    In this figure, the cam handles on the compute node are shown.
    Cam handle to help you pull the node out
    Cam handle that you pull down before pulling the node out
    Note: Support the node with both your hands when you pull it out of the chassis.
  6. Place the node on a level surface.
    You must package the node and return it to NetApp.
  7. Align the replacement node with the slot in the chassis into which you are installing the node.
  8. Push the node in until you hear a click.
    Attention: Ensure that you do not use excessive force when sliding the node into the chassis.
    Note: Ensure that the node powers on. If it does not power on automatically, push the power button at the front of the node.
  9. Reconnect the cables to the ports from which you originally disconnected them.
    The labels you had on the cables when you disconnected them will help guide you.
    Attention:
    • If the airflow vents at the rear of the chassis are blocked by cables or labels, it can lead to premature component failures due to overheating.
    • Do not force the cables into the ports; you might damage the cables, ports, or both.
    Tip: Ensure that the replacement node is cabled in the same way as the other nodes in the chassis.