A customer recently bought services from their consultant to re-configure an existing Cluster for a...

For re-configuring an existing cluster for a new use case where data preservation is not a concern, and there is a lack of CVM credentials:

C. Foundation VM - Bare Metal: This tool allows for a complete re-installation of the Nutanix software from scratch, which is ideal in scenarios where existing configurations and data are no longer needed, and access credentials are unknown or lost.

References:

Nutanix Bible (https://www.nutanixbible.com ), especially sections on cluster reconfiguration and Foundation tools.

Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com ), where cluster deployment and reconfiguration scenarios are extensively covered.