Learn how to add a node and ensure it works properly.
Nutanix clusters are scalable. You can add nodes to an existing cluster.
Requirements
- A Nutanix cluster in your OVHcloud account
- Access to the OVHcloud Control Panel
- Access to the OVHcloud API
- You must be connected to the cluster via Prism Central
- A ready-to-configure physical server added to the OVHcloud Control Panel
Technical information
The Hosted Private Cloud solution powered by Nutanix enables you to have between 3 and 18 nodes on the same cluster.
It is possible to add several nodes when expanding the cluster.
The nodes to be added must have the same version of AOS as the existing cluster.
Instructions
Checking node delivery
Log in to your OVHcloud Control Panel and check that an additional node appears in the Nutanix cluster.
You can also check this via the OVHcloud API.
Use the following API call:
-
serviceName: enter the cluster name
The new node appears with 0.0.0.0 IPs.
Node installation
To install the new node, you must change the cluster properties by making a PUT on the cluster.
To do this, use the following API call:
redeployCluster box.Tick the scaleUp box. Enter the following information below nodes:
- ahvip : IP address of the hypervisor of the new node.
- cvmip : IP address of the CVM of the new node.
You must also complete the deployment version. It may not correspond to the current version of your cluster. This is not an issue as the node will be modified by the Nutanix installer when adding it to the cluster via Prism Element.
Click Execute to send the request.
In the "Result" tab, the new node appears with the new IP address.
At the end of the installation, you will receive an email confirming that the node is ready.
Dear Customer,
Your server has just been installed.
You must now add it back to your Nutanix cluster by connecting to Prism Central: https://cluster-xxxx.nutanix.ovh.net:9440
We remain at your disposal for any further information.
The OVHcloud Team
Add a node to a Nutanix cluster
Connect to Prism Element through Prism Central.
On the dashboard, the three nodes are visible in the Hardware Summary. Click on View Details in the middle left to bring up more details.
A more detailed view is displayed with information such as total space and storage resilience capacity.
Click Close to close this window.
Open the Home menu and choose Health to perform a cluster analysis before adding the node.
Click on Actions in the top right-hand corner and choose Run NCC Check.
Click Run to launch a control and wait for the operation to complete.
After the check, click the gear icon at the top right to change the settings.
Click Expand Cluster.
Select the Expand Cluster operation and click Next.
Check the box next to the discovered host to display the node details.
Scroll to see the options.
Scroll down to the bottom of the window and click on Next.
Choose the Rack in Assign to Rack and click Next.
Click Expand Cluster.
Click Open to view the cluster expansion details.
The addition of the node is completed when the Expanding Cluster progress is 100%.
Four nodes are visible in Hardware Summary, click View Details for more information.
Click Close to return to the dashboard.
Go further
For more information and tutorials, please see our other Nutanix support guides or explore the guides for other OVHcloud products and services.