NCSE-Core Exam Dumps - Nutanix Certified Systems Engineer-Core (NCSE-Core 6.8)

To enable prospective customers to gain hands-on experience with Nutanix without the need for support from a systems engineer or Nutanix, the following resources are available:

Test Drive:

Nutanix Test Drive provides a hands-on, guided tour of Nutanix solutions in a live environment. It allows customers to explore and interact with Nutanix features and functionalities, simulating real-world scenarios and workflows.

Community Edition (CE):

Nutanix Community Edition is a free version of Nutanix AOS that customers can deploy on their own hardware. It allows users to test and evaluate Nutanix software in a non-production environment, providing full access to Nutanix features and capabilities for learning and experimentation.

References:

Nutanix Community Edition Getting Started Guide

The ADS (Acropolis Dynamic Scheduler) service in AHV performs the following tasks for VMs:

Invokes workload movement if there is contention of resources: ADS dynamically reallocates resources to balance the load and prevent resource contention.

Balances VMs throughout the cluster when the VM is first powered on: ADS ensures that VMs are optimally placed based on available resources and load distribution when they are started​​.

A. Data Locality:

The concept of data locality in Nutanix ensures that data is always kept close to the VM that uses it, typically on the same node. This reduces latency and provides high performance comparable to, or exceeding, traditional 16Gb Fibre Channel SAN solutions.

Data locality minimizes the need for data to travel over the network, effectively leveraging 10Gb Ethernet for low-latency and high-throughput operations, addressing the storage administrator’s concerns.

To determine the best configuration, we need to calculate the required storage, including the additional 20% growth and the capacity to re-protect in the event of a node failure:

Initial Storage Requirement:

Usable storage required: 15 TiB

Additional storage for 20% growth: 15×0.2=3 TiB15 \times 0.2 = 3 \text{ TiB}15×0.2=3 TiB

Total storage required: 15+3=18 TiB15 + 3 = 18 \text{ TiB}15+3=18 TiB

Storage with Re-protection:

To ensure data protection and availability, Nutanix typically uses a replication factor (RF) of 2, meaning each piece of data is stored twice.

Therefore, the total raw storage needed: 18 TiB×2=36 TiB18 \text{ TiB} \times 2 = 36 \text{ TiB}18 TiB×2=36 TiB

Given these calculations, we should look for a configuration that provides at least 36 TiB of raw storage. Based on typical Nutanix node configurations, Option D provides the best balance of cost and capacity, ensuring that the requirement for 36 TiB of raw storage is met.

B. B (Manual Mode Selection):

In the exhibit, selecting "Manual" mode allows the SE to manually adjust the configuration to fit specific requirements, such as accommodating a specific number of physical host-based software licenses.

D. D (Limit Max Node Count Per Cluster):

Using the "Limit Max Node Count Per Cluster" option, the SE can specify the maximum number of nodes per cluster, ensuring that the configuration does not exceed the number of available licenses.

References:

The Nutanix Sizer tool provides various options to customize the sizing to meet specific requirements, including manual adjustments and limiting the number of nodes in a cluster.

C. Inline compression:

Inline compression compresses data as it is written to the storage, reducing the amount of storage used and improving capacity utilization immediately. This is highly effective for reducing the storage footprint of a Splunk workload.

D. Capacity tier de-duplication:

Capacity tier de-duplication eliminates duplicate copies of data, further reducing the storage requirements. This is particularly useful for environments with repetitive data patterns, like log files generated by Splunk.

References:

Nutanix documentation and best practices on storage capacity optimization highlight the use of inline compression and de-duplication as key techniques for reducing storage usage and improving overall storage efficiency.

When addressing the prospect's need to refresh their environment with a small budget, it is crucial to highlight Nutanix's capabilities that can efficiently utilize their resources and manage their widespread satellite offices. The core data center's low utilization indicates room for improvement in resource management and cost-effectiveness. Here's a detailed explanation of the selected capabilities:

A. Multi-site management:

Nutanix Prism Central allows centralized management of multiple sites, including satellite offices. This capability is essential for managing infrastructure across the prospect's 25 satellite offices efficiently.

Centralized management reduces the complexity and operational overhead associated with maintaining multiple disparate systems. This leads to better resource utilization and easier scalability.

To enhance the resiliency of the Nutanix environment against power outages to individual racks, it's essential to implement a strategy that ensures data availability even if an entire rack loses power. Here’s a step-by-step breakdown of the solution:

Current Environment Analysis:

The customer has two NX-3460-G7 blocks and one NX-3160-G7 block in a single rack.

Each block consists of multiple nodes, with a total of nine nodes across these blocks.

Objective:

Increase resiliency to power outages affecting individual racks.

Recommendations:

Move one node from each NX-3460-G7 block to the NX-3160-G7 block: This step is crucial to distribute the nodes across different physical blocks. By doing this, each block will have nodes that can ensure data availability even if a block is compromised.

Distribute the blocks across three separate racks: This ensures that even if one rack loses power, the nodes in the other racks can still maintain data availability and cluster operations.

Enable Rack Awareness: Rack Awareness is a feature in Nutanix that ensures data is distributed in such a way that a rack failure does not lead to data unavailability. When enabled, the system understands the physical location of each node and ensures data replication across different racks.

Implementation:

Physically relocate one node from each NX-3460-G7 block to the NX-3160-G7 block.

Physically distribute the three blocks (NX-3460-G7, NX-3460-G7, NX-3160-G7) across three different racks in the data center.

In the Nutanix Prism interface, enable Rack Awareness to logically inform the cluster of the new rack distribution.

Outcome:

By spreading nodes and blocks across three racks and enabling Rack Awareness, the customer will have increased resiliency. In case one rack loses power, the nodes in the other racks will ensure continuous data availability and cluster operations.

This approach leverages the best practices for ensuring high availability and fault tolerance in a Nutanix environment. It minimizes the risk of data loss or downtime due to power failures in a single rack.

References: For further information and detailed steps on enabling and configuring Rack Awareness, please refer to the Nutanix documentation related to high availability and data protection in multi-rack deployments.