Assessment Principles:

• The clock speed of the hyper-converged infrastructure (HCI) platform hosts should meet or exceed that of the original servers, and must not be lower than 2.0 GHz.

• The recommended baseline for healthy CPU resource utilization is between 30% and 70% on average, remaining below 80% even during peak business hours.

• If the average CPU utilization is consistently below 30%, the configuration can potentially be optimized by reducing the number of vCPUs.

• If the average CPU utilization exceeds 70% or peaks above 80%, the CPU configuration can be adjusted using the following formula:
Adjusted Configuration Size ≈ Original Configuration Size * Original Average CPU Utilization * 2

Example: An original CPU configuration of 8 vCPUs with an average utilization of 80% would be calculated as: 8 * 0.8 * 2 = 12.8 vCPUs. In this case, the configuration can be increased to 12 vCPUs post-migration.

• For database servers, it is not recommended to reduce the CPU configuration immediately after migration. Monitor performance over time to determine if a reduction is warranted. If the original system's CPU utilization is excessively high (over 70%), consider increasing the CPU configuration for the original system before migration.