Precautions

1. For a cluster size of more than 24 nodes, it is recommended to use the hardware with good performance as the cluster controller of the control node.

2. When two nodes are expanded to more than three nodes, the virtual machine must be shut down because an arbitration mechanism needs to be established.
3. The first added node within the three nodes must be a control node and in the control node pool. Other hosts can choose whether to join the control node pool.

Steps

1. Navigate to Nodes > HCI Cluster > Nodes. You can add a node to a cluster by clicking Add New Node.

2. On the following page, select a node you want to add to the cluster and input the corresponding username and password. Once a node is chosen, the node icon turns green, indicating the node can be added to the cluster. There will be a prompt to reconfigure the firewall configuration of the added node and execute the node addition task.