How to expand a Nutanix cluster
I’ve been spending time getting to know the Nutanix platform in greater detail. I’ve heard a lot about the product and seen countless demos. But I wanted to get seat time with the product and find out how things really work. As I complete these tasks I will be writing up a detailed review that will be made available on Data Center Zombie.
The Nutanix product is built as a scale-out platform and I wanted to find out exactly how easy it would be to scale things out. So I setup a lab experiment and documented the steps to add a host to an existing Nutanix cluster.
Nutanix hardware inventory
Once logged into the Nutanix management page for the storage cluster, select Hardware from the drop down menu shown in the image below. This will show you a high level detail about the nodes and hosts in your cluster. This lab has one Nutanix Block and currently 3 hosts are configured into the cluster. The system has discovered another host and this is what I will be adding to the cluster.
From the same hardware menu look for the Expand Cluster button shown by the #2 in the image below. Click this to get the process started.
This is a small popup window that will show you any blocks or hosts that have been discovered. My lab example here is showing the existing block with host D being discovered. I check the boxes and the system shows the IP configuration for the host that I am asking to be added to the cluster. Click Save to get the process started.
The following confirmation screen is shown and you can close when you verify the details.
Once back at any of the menus with the Nutanix management page you will seen a blue circle on the top menu. This represents the task that it’s working on. I have clicked on it and you can see the process is shown and the progress it has made already.
Once you see the process has completed I have navigated back to the hardware menu. We can now see that I have 4 hosts configured as part of my cluster. Also I now see in the host based stats we see all four hosts represented.
If you have not already done then you need to make sure the new host is part of your vSphere cluster in vCenter. This process was extremely simple and completed in a short amount of time.
About Brian Suhr
Brian is a VCDX5-DCV and a Sr. Tech Marketing Engineer at Nutanix and owner of this website. He is active in the VMware community and helps lead the Chicago VMUG group. Specializing in VDI and Cloud project designs. Awarded VMware vExpert status 6 years for 2016 - 2011. VCP3, VCP5, VCP5-Iaas, VCP-Cloud, VCAP-DTD, VCAP5-DCD, VCAP5-DCA, VCA-DT, VCP5-DT, Cisco UCS Design