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File Analytics is deployed as a VM, and Nutanix provides its binary image in QCOW2 format for AHV, which is the primary hypervisor for Nutanix clusters. QCOW2 is the standard disk image format for AHV, making it the correct choice for the File Analytics deployment image.

Exact Extract from Nutanix Documentation:

From the Nutanix File Analytics Deployment Guide (available on the Nutanix Portal):

“The File Analytics VM is provided as a binary image in QCOW2 format for deployment on AHV clusters. To deploy File Analytics, download the QCOW2 image from the Nutanix Portal and import it into the cluster using Prism Central or Prism Element.”

Nutanix Files, part of Nutanix Unified Storage (NUS), supports WORM (Write Once, Read Many) shares to enforce immutability for compliance and data retention. A WORM share prevents files from being modified or deleted for a specified retention period. The “cool-off interval” (or cool-off period) is the time after a file is written to a WORM share during which it can still be modified or deleted before becoming immutable. The default cool-off interval is typically 1 minute, and the administrator wants to update it to 5 minutes.

Analysis of Options:

Option A (Delete and re-create the WORM share): Incorrect. Deleting and re-creating the WORM share would remove the existing share and its data, which is disruptive and unnecessary. The cool-off interval can be updated without deleting the share, making this an inefficient and incorrect approach.

Option B (Update the worm_cooloff_interval parameter using CLI): Correct. The worm_cooloff_interval parameter controls the cool-off period for WORM shares in Nutanix Files. This parameter can be updated using the Nutanix CLI (e.g., ncli or afs commands) on the file server. The administrator can log into an FSVM, use the CLI to set the worm_cooloff_interval to 5 minutes (300 seconds), and apply the change without disrupting the share. This is the most direct and efficient method to update the cool-off interval.

Option C (Contact support to update the WORM share): Incorrect. Contacting Nutanix support is unnecessary for this task, as updating the cool-off interval is a standard administrative action that can be performed using the CLI. Support is typically needed for complex issues, not for configurable parameters like this.

Option D (Use FSM to update the worm_cooloff_interval parameter): Incorrect. FSM (File Server Manager) is not a standard Nutanix tool or interface for managing Files configurations. The correct method is to use the CLI (option B) to update the worm_cooloff_interval parameter. While the Files Console (FSM-like interface) can manage some share settings, the cool-off interval requires CLI access.

Why Option B?

The worm_cooloff_interval parameter is a configurable setting in Nutanix Files that controls the cool-off period for WORM shares. Updating this parameter via the CLI (e.g., using ncli or afs commands on an FSVM) allows the administrator to change the cool-off interval from the default (1 minute) to 5 minutes without disrupting the existing share. This is the recommended and most efficient method per Nutanix documentation.

Exact Extract from Nutanix Documentation:

From the Nutanix Files Administration Guide (available on the Nutanix Portal):

“The cool-off interval for a WORM share, which determines the time after a file is written during which it can still be modified, is controlled by the worm_cooloff_interval parameter. To update this interval, use the CLI on an FSVM to set the parameter (e.g., to 300 seconds for 5 minutes) using commands like ncli or afs, then apply the change.”

The number of configurable snapshots that are supported for SSR in a file server is 200. SSR (Snapshot-based Replication) is a feature that allows administrators to replicate snapshots of shares or exports from one file server to another file server on a different cluster or site for disaster recovery purposes. SSR can be configured with various parameters, such as replication frequency, replication status, replication mode, etc. SSR supports up to 200 configurable snapshots per share or export in a file server. References: Nutanix Files Administration Guide, page 81; Nutanix Files Solution Guide, page 9

Nutanix Files, part of Nutanix Unified Storage (NUS), uses File Server Virtual Machines (FSVMs) to manage file services. High Availability (HA) in Nutanix Files ensures that shares remain accessible even if an FSVM or host fails. HA mechanisms include IP reassignment, FSVM distribution, and integration with hypervisor HA features.

Analysis of Options:

Option A (Files reassigns the IP address of the FSVM to another FSVM): Correct. In a Nutanix Files HA scenario, if an FSVM fails (e.g., due to a host failure), the IP address of the failed FSVM is reassigned to another FSVM in the file server. This ensures that clients can continue accessing shares without disruption, as the share’s endpoint (IP address) remains the same, even though the backend FSVM handling the request has changed.

Option B (Shares availability are not impacted for several minutes): Incorrect. While Nutanix Files HA minimizes downtime, there is typically a brief disruption (seconds to a minute) during an FSVM failure as the IP address is reassigned and the new FSVM takes over. The statement “not impacted for several minutes” implies a longer acceptable downtime, which is not accurate—HA aims to restore availability quickly, typically within a minute.

Option C (Multiple FSVMs can share a single host): Incorrect. Nutanix Files HA requires that FSVMs are distributed across different hosts to ensure fault tolerance. By default, one FSVM runs per host, and Nutanix uses anti-affinity rules to prevent multiple FSVMs from residing on the same host. This ensures that a single host failure does not impact multiple FSVMs, which would defeat the purpose of HA.

Option D (Affinity rules affect HA): Correct. Nutanix Files leverages hypervisor HA features (e.g., AHV HA) and uses affinity/anti-affinity rules to manage FSVM placement. Anti-affinity rules ensure that FSVMs are placed on different hosts, which is critical for HA—if multiple FSVMs were on the same host, a host failure would impact multiple FSVMs, reducing availability. These rules directly affect how HA functions in a Files deployment.

Selected Statements:

A: IP reassignment is a core HA mechanism in Nutanix Files to maintain share accessibility during FSVM failures.

D: Affinity (specifically anti-affinity) rules ensure FSVM distribution across hosts, which is essential for effective HA.

Exact Extract from Nutanix Documentation:

From the Nutanix Files Administration Guide (available on the Nutanix Portal):

“High Availability (HA) in Nutanix Files ensures continuous share access during failures. If an FSVM fails, its IP address is reassigned to another FSVM in the file server to maintain client connectivity. Nutanix Files uses anti-affinity rules to distribute FSVMs across different hosts, ensuring that a single host failure does not impact multiple FSVMs, which is critical for HA.”