NCSE-Core Exam Dumps - Nutanix SE Academy Questions and Answers

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.

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.

C. ABS (Acropolis Block Services):

Acropolis Block Services (ABS) enables Nutanix storage to be used by external servers, providing the performance and benefits of Nutanix’s distributed storage fabric while allowing the customer to continue using their existing investment in Oracle servers.

ABS allows the integration of all-flash storage with the existing Oracle environment, addressing the prospect's preference for all-flash arrays while leveraging Nutanix’s advanced storage capabilities.

References:

Nutanix documentation on ABS describes its features and benefits, particularly its ability to integrate Nutanix storage with external servers and support high-performance applications like Oracle databases.

Relocating an AHV cluster to a new datacenter while maintaining the same IPs requires careful preparation to ensure minimal disruption and data integrity. The following steps are essential:

Stop all Nutanix Files clusters:

Nutanix Files clusters must be stopped to ensure that there are no ongoing file operations that could be disrupted during the relocation. This prevents data corruption and ensures a clean shutdown of file services.

Shut down all user VMs in the cluster:

Shutting down all user VMs ensures that there are no active workloads that could be interrupted. This step is crucial to prevent data loss and ensure a smooth transition when the cluster is powered up in the new datacenter.

Reconfigure IPMI and Relocate LDAP (Not Required):

Reconfiguring IPMI is not necessary if the IPMI interfaces are not affected by the physical relocation.

Relocating the linked LDAP server is also unnecessary unless the LDAP server itself is moving or changing its network configuration.

By following these steps, the administrator ensures that the cluster can be relocated safely with minimal risk of data loss or service interruption.

References:

Nutanix Bible, Sections on cluster management and VM shutdown procedures​​.

Nutanix-Community-Edition-Getting-Started, Sections on maintenance and cluster relocation​​.

To decrease costs and increase efficiency by eliminating NAS silos and adopting a cloud-like mindset, Nutanix Files is the appropriate product. Nutanix Files provides scalable, distributed file storage that integrates with the Nutanix ecosystem, offering efficient management and eliminating the need for separate NAS devices​​.

To migrate ESXi VMs to a Nutanix AHV cluster, the administrator needs to import the VM’s –flat.vmdk files using the Image Service. This process involves uploading the VMDK files to the Image Service in Nutanix AHV and then creating new VMs using these disk images. The steps ensure that the VMs are correctly imported and recognized by the AHV environment​​.

Customer Concern:

The concern is that VMs may be forced to repeatedly migrate between nodes during a Nutanix cluster upgrade.

Nutanix Feature:

CVM Autopathing: This feature ensures continuous VM operation by dynamically rerouting I/O and network traffic during node maintenance or upgrades.

Explanation:

CVM Autopathingallows VMs to remain on their current hosts while the Controller VM (CVM) handles the necessary I/O redirection.

This minimizes the need for VM migrations, thereby reducing the operational impact during upgrades.

Outcome:

VMs can remain on their original hosts throughout the AOS upgrade process, ensuring minimal disruption and maintaining performance stability.

References: For more details on CVM Autopathing and its operational benefits, refer to Nutanix documentation on cluster maintenance and upgrade best practices.

When using the Sizer in Automatic mode, it can provide various configurations based on the specified workload and capacity requirements. The following configurations are possible:

6x NX-8055-G7:

Each node has 2 x 7.68TB SSDs and 10x 6TB HDDs.

This configuration balances high-performance SSDs with large-capacity HDDs, suitable for mixed workload environments.

4x NX-1075S-G7 + 4x NX-8035-G7:

NX-1075S-G7 nodes have 4x 3.85TB SSDs each.

NX-8035-G7 nodes have 6x 3.84TB SSDs each.

This combination provides high SSD storage capacity across different node types, optimized for performance-intensive workloads.

References:

Nutanix Sizer Documentation: Details on how the Sizer tool calculates and recommends configurations.

Nutanix Hardware Specifications: Specifications for different node models and their storage capabilities.

Understanding POC Success Criteria:

A Proof of Concept (POC) must have clear, measurable success criteria to demonstrate the value and effectiveness of the proposed solution.

Measurable Criteria for POC:

Deployed 100 desktops on AHV using Citrix MCS plugin:

Explanation: Successfully deploying a significant number of desktops (100) using Citrix MCS on Nutanix AHV showcases the capability and scalability of the solution.