Moving the storage nodes

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

Before you begin

  • If your rack has additional space for a new chassis, you have installed the new chassis in the available space.
  • If your rack does not have additional space for a new chassis, you have verified that other chassis in your deployment have unused node slots available.
  • You have an electrostatic discharge (ESD) wristband, or you have taken other antistatic protection.
  • 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 node that you are going to remove as follows:
    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.
  2. 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.
  3. 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.
  4. Click Cluster > Nodes > Actions > Remove to remove the node.
  5. 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.
    After the node is shut down, you are ready to physically remove it from the chassis.
  6. Remove the drives from the node in the chassis as follows:
    1. Remove the bezel.
    2. Label the drives.
    3. Open the cam handle, and slide each drive out carefully using both hands.
    4. Place the drives on an antistatic, level surface.
  7. Remove the node from the chassis as follows:
    1. Label the node and cables attached to it.
    2. Pull down the cam handle on the right side of each node, and pull the node out using both the cam handles.
  8. Reinstall the node into the chassis by pushing the node in until you hear a click.
    The labels you had on the node before you removed it will help guide you.
    Attention: Ensure that you support the node from under when you install it. Do not use excessive force while pushing the node into the chassis.
    Note: If installing into the new chassis, ensure that you install the node into its original slot in the chassis.
  9. Install the drives into their respective slots in the node by pressing down the cam handle on each drive until it clicks.
  10. Reconnect the cables to the same ports at the back of the node.
    The labels you had on the cables when you disconnected them will help guide you.
    Attention: Ensure that you do not force the cables into the ports; you might damage the cables, ports, or both.
  11. After the node powers on, in the NetApp SolidFire vCenter Plug-in, click Cluster > Nodes > Pending.
  12. Select the node, and click Add.
    Note: It might take up to 15 minutes for the node to get added and be displayed under Nodes > Active.
  13. Click Drives.
  14. From the Available list, add the drives.
  15. Perform these steps for all the storage nodes in the chassis.