Add Node

Note

Before adding a new node, you must configure the new node and ensure that it is running the current software version. Refer to Prepare to Replace a Node.

A node is one appliance. Universal Compute Platform multi-node clusters can be deployed with three or more nodes, with the ability to scale up when the cluster reaches capacity. With a multi-node cluster, the cluster size must be a multiple of three (for example, three, six, and nine are acceptable cluster sizes).

To add one or more nodes to a cluster, take the following steps:

Go to Cluster Settings > Add Node.
In the Number of Nodes to Add drop-down, select the number of nodes that you are adding.
From the Number of Availability Zones drop-down, select the number of availability zones to which you are adding nodes.
Note
This setting appears only if you have multiple zones configured already within the cluster. The new nodes that you want to add must be added to the configured zones.
Note

When adding new nodes to an existing cluster that is split into multiple availability zones, keep the following points in mind:
- The cluster configuration, after the nodes are added, must align with availability zones requirements for an equal number of nodes per zone.
- The cluster size, after the nodes are added, must be a multiple of three.
- There is no option to reconfigure the number of zones after the initial cluster is created. This limitation also applies when adding nodes to an existing cluster.
For example, when adding nodes to a six-node and two zone cluster, you can add nodes only in multiples of six or the node addition would violate one of these rules. However, when adding nodes to a nine-node cluster that has three zones, you have the option to add three nodes (one node per zone) giving you a twelve-node cluster with three zones of four nodes each.
Add Nodes Example with Availability Zones
Enter the ICC IP Address for each node and then select Add Nodes.
Select OK to begin the Add Node process.