When providing a quote for a hybrid cluster to a customer with an existing vSAN ReadyNode quote, it is essential to avoid sizing solely based on the competitor's bill of materials for the following reasons:

Customer Requirements:

No Visibility to Actual Requirements: Sizing based on competitor's specifications without understanding the customer's specific requirements can lead to suboptimal solutions. The customer’s workload characteristics, performance expectations, and future growth plans must be considered.

Competitor Assumptions:

Unknown Assumptions: The assumptions made in the competitor's sizing, such as expected workload intensity, redundancy needs, and performance criteria, are not clear. These assumptions can vary significantly and may not align with the actual needs of the customer.

Customized Solution:

A tailored solution based on a thorough assessment using tools like Nutanix Sizer and Nutanix Collector ensures the configuration meets the specific performance, capacity, and resilience requirements of the customer.

References:

Nutanix Sizing Guidelines and Tools.

Best practices for creating customized infrastructure solutions based on customer needs.