Increase NUTANIX CVM Memory

Verify the cluster health. The Nutanix cluster can sustain the failure of one Controller VM at a given time. Do not continue if you suspect that the cluster is not healthy or if another Controller VM is down.

Verify that the Controller VM is running on each host in the cluster.
1. Log on to a Controller VM with SSH.
2. Determine the number of nodes in the cluster.
```
nutanix@cvm$ svmips | wc -w
```
3. Verify that the number of Controller VMs that are Up and Normal is the same as the number of nodes in the cluster.
```
nutanix@cvm$ nodetool -h localhost ring | grep Normal | grep -c Up
```
Verify that all the services in the Controller VM are Up.
```
nutanix@cvm$ cluster status
```

Perform the following steps if you need to change the Controller VM memory allocation.

Caution: To avoid impacting cluster availability, shut down one Controller VM at a time. Wait until cluster services are up before proceeding to the next Controller VM.

Log on to a Controller VM with SSH.
Gracefully shut down the Controller VM.
```
nutanix@cvm$ cvm_shutdown -P now
```
Increase the memory of the Controller VM.
1. Log on to vCenter with the vSphere client.
2. Right-click the Controller VM and select Edit Settings.
3. On the Hardware tab, click Memory and, in the Memory Size field, specify the memory size, and then click OK.
4. On the Resources tab, in the Reservation field, specify the same value you specified in step c, and then click OK.
Start the Controller VM by using the vSphere client.
Log on to the Controller VM.
Accept the host authenticity warning if prompted, and enter the Controller VM nutanix password.
Verify that all the services in the Controller VM are up.
```
nutanix@cvm$ cluster status
```

Source :-

https://portal.nutanix.com/#/page/docs/details?targetId=vSphere-Admin6-AOS-v50:vsp-esxi-cvm-memory-change-t.html

Tech Experience By NISHANT

Increase NUTANIX CVM Memory

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