NCSE-Core Leak Questions

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.