NCP-US-6.5 questions and answers

Explanation: Nutanix Volumes allows physical servers to boot from a volume group that is exposed as an iSCSI target from the data services IP. To ensure high availability and load balancing, multipath I/O (MPIO) is required on the physical server. Object buckets cannot be used for booting physical servers 1.
References:
Nutanix Volumes Administration Guide1

The "X" on the icon represents a distributed shared file, which is a file that belongs to a distributed share or export. A distributed share or export is a type of SMB share or NFS export that distributes the hosting of top-level directories across multiple FSVMs. The "X" indicates that the file is not hosted by the current FSVM, but by another FSVM in the cluster. The "X" also helps to identify which files are eligible for migration when using the Nutanix Files Migration Tool.
References:
Nutanix Files Administration Guide, page 34
Nutanix Files Migration Tool User Guide, page 10

Explanation: The two platforms that are currently supported for Smart Tiering are AWS Standard and Azure Blob. Smart Tiering is a feature that allows administrators to tier data from Files to cloud storage based on file age, file size, and file type. Smart Tiering can help reduce the storage cost and optimize the performance of Files. Smart Tiering currently supports AWS Standard and Azure Blob as the cloud storage platforms, and more platforms will be added in the future.
References:
Nutanix Files Administration Guide,
page 99
Nutanix Files Solution Guide, page 11

Explanation: The delay before compression begins on the Files container is 12 hours. Compression is a feature that reduces the storage space required for data by applying an algorithm that eliminates redundant or unnecessary bits. Compression can improve the storage efficiency and performance of Files.
Compression is enabled by default on the Files container and runs in the background as a low-priority task.
Compression does not start immediately after an AOS upgrade, but waits for 12 hours to avoid interfering with other high-priority tasks or operations.
References:
Nutanix Files Administration Guide, page 24;
Nutanix Files Solution Guide, page 10

Explanation: One of the possible causes of a failed pre-upgrade check for Files is network connectivity issues between the FSVMs. The administrator should verify that there are no firewall rules or network policies that block the communication between the FSVMs on ports 22 (SSH), 9440 (HTTPS), and 2009 (RPC). The administrator can use tools such as ping, traceroute, and telnet to test the connectivity between the FSVMs.
References:
Nutanix Support Portal - Troubleshooting Nutanix Files Upgrade Issues

Explanation: The most likely cause of this issue is that the file server has been cloned. Cloning a file server is not a supported operation and can cause various problems, such as Data Lens not being able to enable or disable for the cloned file server. To avoid this issue, the administrator should use the scale-out feature to add more FSVMs to an existing file server, or create a new file server from scratch.
References:
Nutanix Files Administration Guide, page 28
Nutanix Files Troubleshooting Guide, page 11

Explanation: Smart Tiering is a feature that allows Files to tier data across different storage tiers based on the file size and access frequency. Smart Tiering supports files with a minimum size of 64 KiB and a maximum size of 5 TiB2.
References:
Nutanix Files Administration Guide2

Explanation: A distributed share is a type of SMB share or NFS export that distributes the hosting of top- level directories across multiple FSVMs, which improves load balancing and performance. A distributed share cannot be created on a single-node cluster, because there is only one FSVM available. A distributed share requires at least two nodes in the cluster to distribute the directories. Therefore, the task of creating a distributed share on a single-node cluster will fail.
References:
Nutanix Files Administration Guide, page
33
Nutanix Files Solution Guide, page 8

Explanation: The administrator can meet this requirement by configuring network segmentation for Volumes. Network segmentation is a feature that allows administrators to isolate network traffic for different types of services, such as Volumes, Files, or Objects, on a Nutanix cluster. Network segmentation can improve the security, performance, and manageability of network traffic. By configuring network segmentation for Volumes, the administrator can place all iSCSI traffic on an isolated network and prevent it from interfering with other services or applications.
References:
Nutanix Volumes Administration Guide,
page 15
Nutanix Volumes Solution Guide, page 7

Explanation: The Files Console Dashboard View provides an overview of the Files cluster performance and usage, including the following graphs: Storage Used: Shows the total storage used by the Files cluster, including data, metadata, and snapshots.
Open Connections: Shows the number of active SMB and NFS connections to the Files cluster.
Number of Files: Shows the number of files stored in the Files cluster, excluding snapshots.
Top Shares by Current Capacity: Shows the top five shares by current capacity usage in the Files cluster.
Top Shares by Current Connections: Shows the top five shares by current connection count in the Files cluster 2.
References:
Nutanix Files Administration Guide2

Explanation: The Minerva_cvm.log file contains information about the Minerva service, which is responsible for managing the FSVMs and their communication with Prism Central. The Minerva_cvm.log file can be used to troubleshoot issues related to Nutanix Files, such as duplicate IP address detection.
The log file can be found in /home/nutanix/data/logs/minerva on any CVM in the cluster.
References:
Nutanix Support Portal - Troubleshooting Nutanix Files

Explanation: Data Lens is a feature that provides insights into the data stored in Files across multiple sites, including different geographical locations. Data Lens allows administrators to monitor usage, performance, capacity, and growth trends for all Files deployments globally. Data Lens also provides reports on file types, sizes, owners, permissions, and access patterns 3.
References:
Nutanix Data Lens Administration Guide3