Expanding NetApp HCI storage and compute resources at the same time

After deployment, you can expand and configure NetApp HCI compute and storage resources at the same time using NetApp Hybrid Cloud Control.

Before you begin

  • Ensure that the vSphere instance NetApp HCI is using has vSphere Enterprise Plus licensing if you are expanding a deployment with Virtual Distributed Switches.
  • Ensure that none of the vCenter or vSphere instances in use with NetApp HCI have expired licenses.
  • Ensure that you have free and unused IPv4 addresses on the same network segment as existing nodes (each new node must be installed on the same network as existing nodes of its type).
  • Ensure that you have the vCenter administrator account credentials ready.
  • Ensure that you have one of the following types of SolidFire storage cluster accounts:
    • The native Administrator account that was created during initial deployment
    • A custom user account with Cluster Admin, Drives, Volumes, and Nodes permissions
  • Ensure that you have performed the following actions with each new node:
    • Installed the new node in the NetApp HCI chassis by following the installation and setup instructions available in the NetApp HCI Documentation Center
    • Cabled and powered on the new node
  • Ensure that each new node uses the same network topology and cabling as the existing storage or compute clusters.

About this task

Note:
  • You can intermix the H410C compute node with existing NetApp HCI compute and storage nodes in the same chassis and cluster.
  • You cannot intermix compute nodes and GPU-enabled compute nodes in the same cluster. If you select a GPU-enabled compute node, CPU-only compute nodes become unselectable, and vice versa.
  • If you are adding compute nodes with CPU generations that are different than the CPU generation of the existing compute nodes and Enhanced vMotion Compatibility (EVC) is disabled on the controlling vCenter instance, you must enable EVC before proceeding. This ensures vMotion functionality after expansion is complete.

Steps

  1. Open a web browser and browse to the IP address of the management node. For example:
    https://<ManagementNodeIP>/manager/login
  2. Log in to NetApp Hybrid Cloud Control by providing the NetApp HCI storage cluster administrator credentials.
  3. In the Expand Installation pane, Click Expand.
    The browser opens the NetApp Deployment Engine.
  4. Log in to the NetApp Deployment Engine by providing the NetApp HCI storage cluster administrator credentials.
  5. On the Welcome page, select Yes.
  6. On the End User License page, perform the following actions:
    1. Read the VMware End User License Agreement.
    2. If you accept the terms, click I accept at the end of the agreement text.
  7. Click Continue.
  8. On the vCenter page, perform the following steps:
    1. Enter a FQDN or IP address and administrator credentials for the vCenter instance associated with your NetApp HCI installation.
    2. Click Continue.
    3. Select an existing vSphere datacenter to which to add the new compute nodes, or select Create New Datacenter to add the new compute nodes to a new datacenter.
      Note: If you select Create New Datacenter, the Cluster field is automatically populated.
    4. If you selected an existing datacenter, select a vSphere cluster with which the new compute nodes should be associated.
      Note:

      If the NetApp HCI cannot recognize the network settings of the cluster you have selected for expansion, ensure that the vmkernel and vmnic mapping for the management, storage and vMotion networks are set to the deployment defaults. See Supported networking changes for more information.

    5. Click Continue.
  9. On the ESXi Credentials page, enter an ESXi root password for the compute node or nodes you are adding.
    You should use the same password that was created during the initial NetApp HCI deployment.
  10. Click Continue.
  11. If you created a new vSphere datacenter cluster, on the Network Topology page, select a network topology to match the new compute nodes you are adding.
    Note: You can only select the two-cable option if your compute nodes are using the two-cable topology and the existing NetApp HCI deployment is configured with VLAN IDs.
  12. On the Available Inventory page, select the storage and compute nodes you want to add to the existing NetApp HCI installation.
    Important: For some compute nodes, you might need to enable EVC at the highest level your vCenter version supports before you can add them to your installation. You need to use the vSphere client to enable EVC for these compute nodes. After you enable it, refresh the Inventory page and try adding the compute nodes again.
  13. Click Continue.
  14. Optional: If you created a new vSphere datacenter cluster, on the Network Settings page, import network information from an existing NetApp HCI deployment by selecting the Copy Setting from an Existing Cluster checkbox.
    This populates the default gateway and subnet information for each network.
  15. On the Network Settings page, some of the network information has been detected from the initial deployment. Each new node is listed by serial number, and you need to assign new network information to it. For each node listed, perform the following steps:
    1. If NetApp HCI detected a naming prefix, copy it from the Detected Naming Prefix field, and insert it as the prefix for the new unique hostname you add in the Hostname field.
    2. In the Management IP Address field, enter a management IP address for the node that is within the management network subnet.
    3. In the vMotion IP Address field, enter a vMotion IP address for the node that is within the vMotion network subnet.
    4. In the iSCSI A - IP Address field, enter an IP address for the first iSCSI port of the node that is within the iSCSI network subnet.
    5. In the iSCSI B - IP Address field, enter an IP address for the second iSCSI port of the node that is within the iSCSI network subnet.
  16. Click Continue.
  17. On the Review page in the Network Settings section, new nodes are shown in bold text. If you need to make changes to information in any section, perform the following steps:
    1. Click Edit for that section.
    2. When finished making changes, click Continue on any subsequent pages to return to the Review page.
  18. Optional: If you do not want to send cluster statistics and support information to NetApp-hosted SolidFire Active IQ servers, clear the final checkbox.
    This disables real-time health and diagnostic monitoring for NetApp HCI. Disabling this feature removes the ability for NetApp to proactively support and monitor NetApp HCI to detect and resolve problems before production is affected.
  19. Click Add Nodes.
    You can monitor the progress while NetApp HCI adds and configures the resources.
  20. Optional: Verify that the new nodes are visible in vCenter (for compute nodes) or the Element Plug-in for vCenter Server (for storage nodes).