Adding the node to the Nutanix-new cluster

Adding the node to the new cluster 

Expanding the cluster is good easy through PRISM GUI console  but I ran into a few problems . This was due to the fact that I had to re-ip the node while adding it to cluster.

• Before starting the process set the ESXi root password to the default nutanix/4u password
• In my case I assigned the new IP to the ESXi host as well as the IPMI interface
• Under the gear icon click expand cluster. The node you have removed previously should be discovered.
  
  
  
  
• Scroll down and enter new IP
  
  
  
  
  Note: At this point I ran into an error but that was fixed by a 'genesis restart' and start process again. The genesis.out file should give you a good indicator
• Select the hypervisor needed and expand cluster.
  
  
  
  
• The process kicks off and took approx. 60 to 120  minutes to complete
  
  
  
  
• You should notice on the main PRISM page that you have an extra node and that your storage has increased.
• Go to Storage > Storage Container. Select the applicable datastores and moun them to new host. You can do this by selecting datastore and clicking the update link. Select mount/unmount on following ESXi hosts and select IP address of new host.
• Last thing to do on the Nutanix cluster is to update licensing. On the original cluster, go to the gear icon > Licensing. Click Update license and generate cluster summary file
• In the portal select the cluster UUID and click on actions button. Click reclaim and upload summary file and click generate.
• Go back to original cluster and upload the newly generated license file.
• On the cluster where you added node, click on the licensing violation banner at top and update license. Generate license and go to support portal once again. Select the correct cluster and choose add node under actions.
• Upload the cluster summary file and generate a new license file. On the cluster apply the new license

And that is it! You can now add your node to vCenter and configure as required

changing  my hostnames to be consistent so I will need to change a few things

• SSH into your ESXi host
• Change hostname with 'esxcli system hostname set --fqdn <name>' command
• Restart genesis on all nodes 'allssh genesis restart genesis'
• You may also want to execute service hostd restart on your ESXi nodes
  

Although the nodes are added to the cluster, the ESXi hosts will not automatically mount the existing datastores. This can be easily done via PRISM though.

• Go to Home > Storage > Table > Container
• Select the datastore and click update
• Make sure mount/unmount ESXI hosts is selected
• Tick the box next to the new host and click save