[VMC] Modify number of CPUs enabled on hosts in cluster

Products

• VMware Cloud on AWS

Issue/Introduction

Guidance on modifying the number of CPUs enabled on hosts in a cluster. 

Environment

VMC on AWS

Cause

Need to modify the number of CPUs enabled on hosts in a specific cluster. 
This could be due to:

• Applications that are being used in the cluster require licenses on a per-core basis. 
• Licensing costs or requirements due to the number of CPUs enabled on the hosts have changed. 

Resolution

Once a cluster has been deployed in VMC on AWS, the number of CPUs enabled on the hosts cannot be modified. 
To change the number of CPUs enabled, there are two resolutions:

• A new cluster can be added with the required number of CPUs enabled. Once completed, the workload can be migrated to the new cluster and the previous cluster deleted. 
• If there is no workload running in the cluster, the cluster can be deleted and a new cluster added with the amount of CPUs needed. 

Note: The number of CPUs enabled on the hosts cannot be modified on the first cluster created (Cluster-1 by default) during initial VMC on AWS SDDC deployment. 

Additional Information

• VMC on AWS: Add a Cluster
• VMC on AWS: Remove a Cluster
• How to Migrate Your Virtual Machine to a New Compute Resource