Shutting down the storage node

Before you move the storage node to the new chassis, you must remove the drives, shut down the nodes correctly, and label all the components.

Before you begin

  • You have an electrostatic discharge (ESD) wristband, or you have taken other antistatic protection.
  • You have verified that the hosts are no longer accessing the volumes hosted by the storage nodes you are going to remove.
  • You know how the node slots and drives are mapped as shown in the following figures:
    In this figure, the drive mapping as seen from the front of the chassis is shown.
    Six drive slots per node

    In this figure, the four storage nodes in a chassis are labeled as A, B, C, and D.

Steps

  1. Identify the failed chassis.
  2. If you are shutting down all the storage nodes in your NetApp HCI deployment, use the following API call:
    wget --no-check-certificate -q --user=<USER> --password=<PASS> -O - --post-data '{ "method":"Shutdown", "params":{"option":"halt", "nodes":[ <NODEID>, <NODEID>, <NODEID> ]} }' https://<MVIP>/json-rpc/8.0
    USER is the user name you configured in the NetApp Deployment Engine when you set up NetApp HCI, PASS is the password you configured in the NetApp Deployment Engine when you set up NetApp HCI, NODEID is where you specify the node IDs of all the nodes that you want to shut down, and MVIP is the MVIP IP address.
  3. If you are shutting down only the storage nodes in the failed chassis, perform the following steps:
    1. Note down the serial number of the node from the sticker at the back of the node.
    2. In the VMware vSphere Web Client, click NetApp Element Management, and copy the MVIP IP address.

      In this figure, the MVIP IP address is highlighted.
    3. Use the MVIP IP address in a web browser to log in to the NetApp Element software UI with the user name and password that you configured in the NetApp Deployment Engine.
    4. Click Cluster > Nodes.
    5. Match the serial number you noted down with the serial number (service tag) listed.
    6. Make a note of the node ID of the node.
    7. After you identify the node, move iSCSI sessions away from the node by using the following API call:
      wget --no-check-certificate -q --user=<USER> --password=<PASS> -O - --post-data '{ "method":"MovePrimariesAwayFromNode", "params":{"nodeID":<NODEID>} }' https://<MVIP>/json-rpc/8.0
      MVIP is the MVIP IP address, NODEID is the node ID, USER is the user name you configured in the NetApp Deployment Engine when you set up NetApp HCI, and PASS is the password you configured in the NetApp Deployment Engine when you set up NetApp HCI.
    8. Click Cluster > Drives to remove the drives associated with the node.
      Note: You must wait for the drives that you removed to show up in the Available tab before you remove the node.
    9. Click Cluster > Nodes > Actions > Remove to remove the node.
    10. Use the following API call to shut down the node:
      wget --no-check-certificate -q --user=<USER> --password=<PASS> -O - --post-data '{ "method":"Shutdown", "params":{"option":"halt", "nodes":[ <NODEID>]} }' https://<MVIP>/json-rpc/8.0
      MVIP is the MVIP IP address, NODEID is the node ID, USER is the user name you configured in the NetApp Deployment Engine when you set up NetApp HCI, and PASS is the password you configured in the NetApp Deployment Engine when you set up NetApp HCI.
  4. Perform these steps for all the storage nodes you want to remove.
    You are now ready to physically remove the storage node.