NCSE-Core Exam Results

Analyze the CPU utilization data:

Historical CPU utilization data indicates that peak CPU utilization never exceeds 50% on either physical host.

This implies that the existing physical CPUs are underutilized.

Calculate vCPU

ratio:

Given that peak utilization is only 50%, a conservative approach would be to use a lower vCPU to pCore ratio to avoid overcommitment and ensure performance.

Recommended ratio:

A 2:1 vCPU to pCore ratio is appropriate in this scenario to ensure that there is ample CPU capacity and to avoid potential performance bottlenecks.

References:

Nutanix Sizer tool recommendations and best practices for CPU allocation in virtualized environments.

Zookeeper in Nutanix is responsible for distributing metadata to ensure availability in case of node or block failure. Metadata includes important information about the state and configuration of the cluster, which is crucial for maintaining cluster operations and consistency.

References:

Nutanix Bible

The Nutanix Collector provides performance data over the previous 7 days. This allows for a comprehensive analysis of the environment's performance trends and helps in making informed sizing and configuration decisions.

Data Collection:

Nutanix Collector gathers data points related to CPU, memory, storage, and network usage over a 7-day period.

Analysis Period:

A 7-day data collection period ensures that the analysis captures the variability and peak usage patterns, providing a reliable basis for infrastructure planning.

Usage:

This period is user-friendly and sufficient to identify performance bottlenecks, resource utilization patterns, and to validate that the proposed solution will meet the customer’s requirements.

References:

Nutanix Collector documentation and usage guidelines.

Best practices for performance monitoring and analysis.

In addition to the total number of physical CPU cores, the cost of Capacity Based Licensing for a Nutanix Cluster is calculated using the RAW total storage in TiB. This approach ensures that both computational and storage resources are accounted for when determining the licensing costs.

Physical CPU Cores: The number of physical CPU cores is the primary factor in the licensing cost calculation.

Raw Total Storage: This includes the total raw capacity of all storage devices (both SSDs and HDDs) present in the cluster, measured in tebibytes (TiB).

References:

Nutanix Licensing Guide: Details the parameters considered for capacity-based licensing.

Nutanix Community and Support Documentation: Provides insights into licensing models and their components.