Last Attempt NCS-Core Questions

If one power supply is disconnected from a NX-3235-G9 chassis, the behavior observed will be:

• The hardware status updates to reflect the change in Prism Element, the hosts continues to run, and the Host hardware power status alert is sent: Modern Nutanix hardware like the NX-3235-G9 is designed with redundant power supplies to ensure that the loss of one does not impact the overall operation of the cluster. Prism Element updates the hardware status to notify administrators of the power supply issue, but there is no impact on running workloads.

References:

• Nutanix Bible (https://www.nutanixbible.com), particularly the sections on hardware management and monitoring.
• Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), which includes information on responding to hardware alerts and maintaining cluster health.

If ESXi 6.5 is not available as one of the choices for hypervisor during the Foundation process, the consultant should upload the ESXi image to the specific directory where Foundation expects to find hypervisor images. The correct path for this operation is /home/Nutanix/foundation/isos/hypervisor/esx. This allows the Foundation tool to detect and use the ESXi image for installation on the nodes.References: Nutanix Foundation Guide, Nutanix Support Documentation.

To meet the requirement of having two weeks of daily snapshots and application-consistent snapshots on specific days (Friday, Saturday, Sunday), the best approach is to use two separate protection domains. This setup allows for greater flexibility in managing retention policies and ensuring application consistency. One protection domain will handle daily snapshots without application consistency for regular backups, and the other will handle application-consistent snapshots for critical times when databases and applications are updated, ensuring data integrity during these operations.

References:

• Nutanix Bible: Data Protection and DR
• Nutanix University: Creating and Managing Protection Domains

When encountering timeout issues during Foundation using a customer-provided network switch, one common cause can be mismatched or unsupported network configurations, particularly concerning MTU sizes:

• A. Check jumbo frames support of the network switch: Ensuring that the switch supports jumbo frames (MTU of 9000) and is properly configured for it can prevent timeout issues that might arise due to packet fragmentation or dropped packets.

References:

• Nutanix Bible (https://www.nutanixbible.com), which discusses network prerequisites for successful Foundation.
• Nutanix University: NCS-Core 6.8 Training (https://university.nutanix.com), covering the technical setup and network requirements for cluster deployments.