C. Adding storage only nodes:

Nutanix allows the addition of storage-only nodes to a cluster. This feature is beneficial for environments where data retention for compliance purposes increases, as it provides a cost-effective way to scale storage capacity without adding compute resources.

Storage-only nodes help in efficiently managing and expanding storage capacity while controlling costs, making it a suitable solution for the prospect’s concerns.

References:

Nutanix documentation on cluster configuration and expansion highlights the benefits and use cases for adding storage-only nodes, particularly in scenarios requiring increased storage capacity.