Nutanix NCS-Core Practice Test - Questions Answers, Page 12

For managing a multi-cluster environment with a total of 2550 VMs, deploying a large 3-VM Prism Central instance is advisable. This setup provides the necessary scalability, redundancy, and performance to efficiently manage such a large number of VMs across multiple clusters. A 3-VM configuration ensures high availability and fault tolerance, crucial for maintaining consistent operations and management across the clusters.

Nutanix Bible: Prism Central Deployment

Nutanix University: Scaling and Managing Large Environments

When nodes are added to a Nutanix cluster and there is a discrepancy in the position or configuration as shown in the hardware diagram tab, it's essential to check the factory_config.json file on all newly added nodes. This file contains important configuration details that define how each node is identified and operates within the cluster. Incorrect or inconsistent settings in the factory_config.json can lead to display and configuration errors in the Prism interface. Correcting any discrepancies in this file will help resolve issues with node identification and display in the diagram tab.

Nutanix Bible: Cluster Expansion and Configuration

Nutanix University: Troubleshooting Hardware Configuration Issues

The alert for Protection Policy PP-BCA-1HR indicating critical availability issues is most likely due to the workloads included in the policy no longer meeting their intended Recovery Point Objective (RPO). A 1-hour snapshot frequency implies a stringent RPO, which if not maintained, could result in data loss beyond acceptable business limits. This scenario typically generates a critical alert in Prism Central, especially when the snapshots required to meet the RPO are not completed as scheduled due to any number of issues such as resource constraints or network issues.

Reference: Nutanix Prism User Guide, Nutanix Data Protection Best Practices.

An alert of this nature in the file server dashboard usually indicates issues related to node availability within a cluster. Specifically, the failure of a node in a three-node cluster (Option B) can lead to insufficient resources to handle all tasks, which might trigger such an alert. Additionally, setting a node to maintenance mode in a three-node cluster (Option D) also disrupts service availability and could generate a similar alert, as the remaining nodes might struggle to handle the load or maintain data redundancy.

Reference: Nutanix AOS User Guide, Nutanix Files Documentation.

To revert both clusters to their original state after testing DR by activating VMs on the remote cluster, the administrator needs to ensure that replications are suspended to prevent any further changes during the process. The steps include suspending the replications on the primary site to prevent any conflicts or data loss (Step 1), deactivating the Protection Domain on the remote site using ncli to stop the DR environment (Step 2), and then migrating the protection domain back to the primary site (Step 3). This sequence ensures that both clusters return to their original states with minimal disruption.

Reference: Nutanix Disaster Recovery Guide, Nutanix Administration Guide.

When receiving a field advisory from Nutanix support regarding a rare problem that could destabilize the cluster, the recommended action is to update AOS. This can be done via Prism Element by selecting 'Upgrade Software.' This method ensures that any patches or updates that address the identified issue are applied directly to the AOS environment, mitigating any potential risks associated with the reported problem. Since the organization uses VMware vSphere, the update specifically targets the AOS to ensure the underlying infrastructure supporting vSphere remains stable.

Reference: Nutanix Support Portal, Nutanix Field Advisories, Prism Element Guide.

The As-Built Guide is a comprehensive document typically prepared at the end of a Nutanix deployment project. It includes detailed information about the Nutanix environment, such as IP addresses, storage container settings, hardware and software configurations, and other deployment specifics. This document serves as a reference for the customer to understand their deployed infrastructure and for any future modifications or troubleshooting needs.

Nutanix Bible: Documentation and Reporting

Nutanix University: Deployment Best Practices

When managing multiple Nutanix AHV clusters across various locations with a centralized management through Prism Central, it is essential to secure each cluster individually. Integrating Microsoft Active Directory authentication directly on all Prism Element clusters allows each site to independently authenticate users while still being centrally managed. This method aligns with security policies that require network devices to authenticate via AD groups, ensuring that local administrative actions at each site are also secured under the same policy.

Nutanix Bible: Security and Authentication

Nutanix University: Security Configuration

Nutanix Enablement Starter Packs (ESPs) are resources designed to aid Nutanix partners in ramping up their knowledge and capabilities with Nutanix solutions. These packs typically include training materials, guides, promotional materials, and more. They are most commonly found in the Nutanix Partner Portal, which is designed to support Nutanix partners in their sales and technical education efforts.

Nutanix Bible: Partner Resources

Nutanix University: Partner Enablement Programs