Free NS0-163 Practice Test Questions and Answers (2026)

In SnapVault for ONTAP 7-Mode, the command syntax

snapvault snap create

is implemented by the SnapVault engine itself; therefore it is accepted by any ONTAP system that is a member of the SnapVault relationship. The administrator may invoke it on the primary system to create a source-side snapshot or on the secondary system to create an additional backup-side snapshot. The man page and administrative guide both state that the command “can be entered on either the primary or secondary storage system.” Hence only choice C (“secondary or primary appliance systems”) is fully accurate.

A. “secondary system only” – ignores documented support on primary.

B. “primary system only” – ignores documented support on secondary.

D. “open systems” – SnapVault CLI exists only on ONTAP controllers, not open-systems hosts.

1. NetApp

Data ONTAP 8.2 7-Mode Data Protection Online Backup and Recovery Guide

chap. 10 “Creating Snapshot copies manually”

p. 140: “You can enter snapvault snap create on either the primary or the secondary system.”

2. NetApp

Data ONTAP 8.2 7-Mode Commands: Manual Page Reference

man page “snapvault(1)”

sub-command description for snap create

lines 18-20: “This command is accepted on both ends of a SnapVault relationship.”

3. NetApp University courseware

“NS0-163 Implementation Workbook v8.2”

Module 5

slide 23: “snapvault snap create may be executed on the primary or secondary controller.”

In a NetApp environment integrated with Veritas NetBackup, there are two primary, supported methods for data restoration from a SnapVault volume.

1. NetBackup Administration Console: For orchestrated restores, such as recovering entire directories, volumes, or for restores that need to be tracked and managed within the NetBackup catalog, the restore process must be initiated from the NetBackup Administration Console. NetBackup then communicates with the NetApp storage system to perform the required operations, which may include leveraging NetApp SnapRestore technology under the hood.

2. Drag-and-drop: For simple, user-driven, single-file restores, the most direct method is to access the hidden snapshot directory (.snapshot for CIFS or ~snapshot for NFS) on the volume. Users or administrators can then browse to the desired point-in-time snapshot and use standard file system drag-and-drop or copy-paste operations to restore the file to its original or a new location.

Using native Data ONTAP commands like snapvault restore or initiating a SnapRestore directly from the CLI would bypass the NetBackup management layer, potentially causing inconsistencies in the backup catalog.

1. NetApp TR-3722: NetBackup with NetApp Storage Best Practices.

Page 21

Section 5.1

"Single-File Restore": "Single-file restores can be performed by end users or administrators by browsing to the .snapshot directory on a CIFS share or the ~snapshot directory on an NFS export and copying the file to the desired location." This directly supports the use of drag-and-drop technologies.

Page 21

Section 5.2

"Directory and Volume Restore": "Directory and volume restores are initiated from the NetBackup Administration Console." This directly supports using the NetBackup console. The section further clarifies that for volume restores

NetBackup initiates a SnapRestore operation on the storage system

confirming that the console is the correct user-facing method

not the underlying ONTAP service itself.

2. Veritas NetBackup for NetApp Snapshot Client Administrator's Guide (Version 8.0).

Page 48

"Restoring from a snapshot": This section details the procedure for initiating a restore

stating

"Use the Backup

Archive

and Restore interface to restore from a snapshot." This confirms the NetBackup Administration Console is the primary interface for managed restores.

Page 51

"About single file restore from a snapshot": "A user can restore a single file from a snapshot by means of the native operating system (for example

Windows Explorer). The user can browse the snapshot directory on the NetApp filer and copy a file from it." This validates the drag-and-drop method for single-file recovery.

Cluster LIFs are used exclusively for communication between the nodes within a cluster over the private cluster interconnect network. These LIFs are essential for system-level operations such as configuration replication and heartbeat messages. In the ONTAP architecture, these fundamental, cluster-wide resources are owned by a special, non-configurable SVM of the system type. This SVM is distinct from admin, data, or node SVMs, which have different roles related to management and data serving.

A. Data: A data SVM owns data LIFs, which are used to serve data to clients over protocols like NFS, SMB/CIFS, iSCSI, and FC/FCoE.

B. Admin: An admin SVM owns the cluster-management LIF. This LIF provides a single management interface for the entire cluster.

D. Node: A node SVM owns node-management LIFs. Each node has one such SVM and LIF for out-of-band management of that specific node.

1. NetApp Technical Report 4182

Best Practices for Network Configuration in ONTAP 9:

Section 2.1

"Logical Interfaces

" states: "Cluster LIFs are owned by the system SVM and are used for intracluster communication." This directly confirms that the system SVM type is the owner of cluster LIFs.

2. NetApp ONTAP 9 Documentation

Network management:

In the section "Types of LIFs

" it describes the different roles of LIFs. It specifies that cluster LIFs are for "intracluster traffic between nodes." The documentation on SVMs further clarifies that system-level resources are managed by the system SVM.

3. NetApp ONTAP 9 Documentation

ONTAP concepts:

The section "How storage virtual machines work" describes the different types of SVMs

including admin

data

node

and system. It clarifies that the system SVM is for cluster-level operations

which includes owning the cluster interconnect LIFs.

The snap restore command in NetApp ONTAP is an interactive command by default, meaning it prompts the user for confirmation before proceeding with the restore operation. This is a safety measure to prevent accidental data overwrites. For automation and scripting purposes, this interactive prompt must be suppressed. The standard method for achieving this is to use the -f (force) option with the snap restore command. This flag signals to the system to proceed with the operation without asking for confirmation, making it suitable for use in automated scripts.

A: The priv set advanced mode is used to access advanced commands and parameters for troubleshooting, not to suppress confirmation prompts for standard commands like snap restore.

B: The option snaprestorenoprompts does not exist in ONTAP. System-wide options are managed via the options command, but this specific option is fictitious.

D: This statement is incorrect. While the prompts are for data protection, they can be overridden using the -f flag specifically to allow for automation and scripting.

1. NetApp ONTAP 9 Command Reference: The man page for the snap restore command (and its modern equivalent volume snapshot restore-file) explicitly documents the -f or -force parameter. It states that this option forces the operation to proceed without prompting for confirmation.

Reference: NetApp ONTAP 9.8 Commands: volume snapshot restore-file man page. The -force parameter description states: "If you specify this parameter

the command proceeds without prompting for confirmation."

2. NetApp Data ONTAP 8.2 7-Mode Command Reference: For older systems

the snap restore command documentation shows the same behavior.

Reference: Data ONTAP 8.2 7-Mode Command Reference Guide

Page 789. The description for the -f option for snap restore states: "Ordinarily

snap restore asks for confirmation before it overwrites a file... The -f option suppresses this confirmation request."

SnapVault is a disk-to-disk backup technology that operates at the qtree level. A SnapVault relationship is established between a source qtree on a primary storage system and a destination volume on a secondary system. The backed-up data is stored within a destination qtree on the secondary system. This qtree-based operation allows for granular, policy-based backups of specific data sets within a volume, making the qtree the fundamental unit for SnapVault backup and restore operations.

A. The file is the basic unit for SnapVault backup destination.

Incorrect. While individual files are contained within the backup, the SnapVault relationship and policy are managed at the qtree level, not the file level.

C. The volume is the basic unit of SnapVault backup destination.

Incorrect. Volume-level replication is the primary function of SnapMirror. SnapVault provides more granular, qtree-level backup capabilities within a volume.

D. The directory is the basic unit for SnapVault backup destination.

Incorrect. While a qtree is a special type of directory, "qtree" is the specific and correct NetApp term for the managed unit. This option is too generic.

1. NetApp ONTAP 9.7 Data Protection Guide

Page 13

"How SnapVault backups work". The guide states

"You can back up data from a specific qtree or from an entire volume... When you back up a volume

ONTAP creates a qtree for the volume on the destination." This confirms the qtree as the fundamental container on the destination.

2. NetApp Technical Report TR-4015: SnapMirror Configuration and Best Practices Guide for ONTAP 9.1

9.2

Page 11

Section 2.2 "SnapVault". It describes

"SnapVault is a backup technology that creates a Snapshot copy of a specified qtree or volume on the primary system and copies it to a qtree on the secondary system." This explicitly identifies the qtree as the operational unit.

3. NetApp ONTAP 9 Documentation Center

"Create a SnapVault relationship"

Command reference for snapmirror create. The syntax requires specifying a source path that can be a volume or qtree

and a destination path that is a qtree. For example: -source-path SVM:volume/qtree -destination-path SVM:volume/qtree. This demonstrates the qtree as the core component in the relationship definition.

When configuring an Open Systems SnapVault (OSSV) backup policy in Protection Manager for a UNIX client, the dataset defines the source data to be protected. The OSSV agent installed on the UNIX host can identify and back up data at several levels of granularity. This includes specifying individual files, entire directory trees, or a high-level object representing the entire client's designated backup set. These options allow administrators to create flexible and precise backup policies tailored to specific protection requirements, from a single critical file to the whole server.

B. A qtree: A qtree is a logical partition within a NetApp volume. It is a construct of the destination NetApp storage system running ONTAP, not a native object on the source UNIX client's filesystem.

1. NetApp Protection Manager 3.1 Data Protection for Open Systems Administration Guide: In the chapter on "Creating datasets for Open Systems SnapVault

" the guide specifies the types of resources that can be added to a dataset. It explicitly lists the host (entire client)

directories

and files as valid members for UNIX clients. It makes no mention of qtrees as a source-side object.

2. NetApp TR-3487: Open Systems SnapVault (OSSV) 3.0 Best Practices Guide: This technical report details the configuration of OSSV. In the section "Configuring the OSSV Agent

" it describes the snapvault.conf file on the UNIX client

where backup paths are defined. These paths can point to a file or a directory

and Protection Manager uses this underlying mechanism to manage backups for the "entire client" by aggregating these paths.

3. NetApp OnCommand Unified Manager (Successor to Protection Manager) Documentation: While a newer product

the documentation for managing legacy OSSV relationships reiterates the same principles. The source of an OSSV backup is always a file or directory path on the open systems host. The concept of a qtree only applies to the destination volume on the NetApp controller.

The statement that SnapLock volumes are supported on the gFiler appliance is not true. A gFiler, also known as a NetApp V-Series or Gateway system, was a product that virtualized third-party storage arrays. This architecture prevented the use of features that required deep integration with the physical disk layer and the WAFL (Write Anywhere File Layout) file system. SnapLock's WORM (Write-Once, Read-Many) functionality is one such feature, as it relies on low-level controls to enforce data immutability, which was not possible on the virtualized LUNs presented by a gFiler.

A: This is false because SnapLock is available in two distinct modes: SnapLock Compliance and SnapLock Enterprise, catering to different regulatory and governance requirements.

B: This is false because SnapLock is fully compatible with SnapMirror, allowing for the replication of WORM-protected data to a disaster recovery site.

C: This is false because setting a retention period on a per-file basis is a fundamental capability of the SnapLock feature, allowing for granular control over data immutability.

1. NetApp TR-4570: SnapLock Best Practices and Implementation Guide. Section 2

"SnapLock Overview

" states

"SnapLock is available in two modes: SnapLock Compliance (SLC) and SnapLock Enterprise (SLE)." This document also confirms in Section 6

"SnapLock and SnapMirror

" that "SnapLock supports SnapMirror technology for disaster recovery." (Supports options A and B being true statements).

2. NetApp ONTAP 9 Documentation

"Manage WORM storage using SnapLock." This documentation describes the process of committing files to WORM

which involves setting a retention period on individual files using commands like touch -t. (Supports option C being a true statement).

3. NetApp TR-3437: V-Series Best Practices and Implementation Guide. In historical versions of this technical report

the "Unsupported Features" section explicitly listed SnapLock. The core reason is that V-Series systems virtualize back-end storage

and features requiring low-level WAFL and disk block manipulation

like SyncMirror

MetroCluster

and SnapLock

were not supported. (Supports option D being a false statement).

The aggr split command is used to divide a mirrored aggregate into two separate, unmirrored aggregates. The command aggr split aggr0/plex0 aggrNew takes the mirrored aggregate aggr0, separates its plex named plex0, and uses that plex to create a new aggregate named aggrNew. The original aggregate, aggr0, is left with its remaining plex(es) and is no longer mirrored. Consequently, the operation results in two distinct, unmirrored aggregates: the original aggr0 and the newly created aggrNew. Both aggregates will contain a full copy of the data from the moment of the split.

A: aggrNew is the name of the new aggregate, not a new plex.

B: The command creates a new aggregate from an existing plex; it does not create two new plexes.

C: The new aggregate aggrNew is formed from a single plex, making it unmirrored by definition.

E: Volumes are not split between the aggregates; a complete copy of all volumes exists on both resulting aggregates.

1. NetApp ONTAP 9.7

Logical Storage Management Guide

Page 101: In the section "Splitting a mirrored aggregate

" the guide states

"You can split a mirrored aggregate... The split results in two unmirrored aggregates

each of which contains one of the plexes of the original aggregate." This directly supports the creation of two unmirrored aggregates.

2. NetApp ONTAP 9

Command Reference

storage aggregate split start man page: The command description explicitly states

"This command splits a mirrored aggregate into two unmirrored aggregates." This confirms the outcome described in option D.

3. NetApp Technical Report TR-4075

"SyncMirror and MetroCluster for Disaster Recovery in Clustered Data ONTAP

" Section 4.2: This document describes the aggregate split process. It explains that after a split

"the original aggregate and the new aggregate are both unmirrored aggregates." This reinforces that both resulting aggregates are unmirrored.

According to the official NetApp hardware documentation for the FAS960, specific PCIe slots are designated for SyncMirror configurations to ensure proper functionality and performance. For a standard configuration, Fibre Channel (or SAS) adapters connected to disk pool 0 are installed in slots 5 through 8. Adapters connected to disk pool 1, which is the second plex in a SyncMirror relationship, must be installed in slots 9 through 12.

Assuming the typographical error in option D ("S throuah 11") is intended to be "9 through 11", this is the only option that correctly identifies the slot range dedicated to disk pool 1. While the full range extends to slot 12, this option is the most precise choice available.

A. Slots 2 through 5: Incorrect. This range includes slots reserved for NVRAM (slot 2), cluster interconnects, and the beginning of the disk pool 0 range (slot 5).

B. Slots 3 through 11: Incorrect. This is a wide, improper range that spans slots for cluster interconnects, all of disk pool 0, and part of disk pool 1.

C. Slots 3 through 8: Incorrect. This range primarily covers the cluster interconnect slots (3-4) and the slots designated for disk pool 0 (5-8), not pool 1.

1. NetApp FAS900

FAS960

and V-Series V960 Installation and Service Guide: In the section "I/O" under "Controller module components and specifications

" Table 11

"Slot assignments for FC configurations

" explicitly defines the slot usage. It states:

Slots 5

6

7

8: FC adapters for pool 0

Slots 9

10

11

12: FC adapters for pool 1

This directly supports that pool 1 cabling begins at slot 9 and uses the higher-numbered slots.

2. NetApp FAS900

FAS960

and V-Series V960 Installation and Service Guide: The same slot assignment is mirrored in Table 12

"Slot assignments for SAS configurations

" confirming the pool 0 (slots 5-8) and pool 1 (slots 9-12) division is standard regardless of the disk protocol used. This reinforces the strict slotting rules for SyncMirror.

In NetApp ONTAP, an export policy is the specific mechanism used to control and determine which NFS clients are granted access to data on a volume or qtree. An export policy is a set of one or more export rules. When an NFS client attempts to mount or access a volume, ONTAP checks the associated export policy. It evaluates the rules to find a match for the client's IP address, subnet, or netgroup, which then dictates the access rights (e.g., read-only, read-write) and security protocols (e.g., sys, Kerberos) the client can use. This policy is essential for securing NFS exports.

A. Service: Service policies, specifically Quality of Service (QoS) policies, are used to manage storage performance by setting throughput limits (IOPS or MB/s), not for controlling client access permissions.

B. Tiering: Tiering policies (FabricPool) manage the placement of data across different storage tiers (e.g., SSD and cloud) based on data temperature, not client access rights.

D. Snapshot: Snapshot policies define the schedule for creating and retaining point-in-time copies of a volume for data protection purposes, not for managing access to the active filesystem.

1. NetApp ONTAP 9 Documentation

NFS management

"How export policies work": "To export a volume or qtree

you must create an export policy for it... An export policy is a set of one or more export rules that you associate with a volume or qtree. The export policy and its rules determine which clients have access to the data."

2. NetApp ONTAP 9 Documentation

Logical storage management

"What are export policies": "Export policies... define client access to volumes. You must have at least one export policy and at least one export rule to give clients access to data on the SVM."

3. NetApp ONTAP 9 Documentation

Command Reference

vserver export-policy create: "This command creates an export policy. An export policy is a collection of export rules that can be applied to a volume to control which clients can access the volume and with what access permissions."

When a disk in an aggregate fails, Data ONTAP automatically initiates a replacement process using an available spare disk. If no spare disk of the exact same size (36 GB) is available, ONTAP's policy is to select a compatible spare disk that is larger (72 GB). It then partitions the larger disk to create a logical slice that matches the size of the failed disk. This process is officially termed "right-sizing." The aggregate's RAID group geometry is maintained, and the remaining space on the 72 GB disk is left unused. This ensures the aggregate can be rebuilt and exit the degraded state without manual intervention.

A: Using the disk "as is" is incorrect. The replacement disk must logically match the size of the other disks in the RAID group to maintain its structure.

C: ONTAP does not halt. It continues operating in a degraded mode and automatically begins the rebuild process as soon as it selects a spare, without a 24-hour time limit.

D: ONTAP is designed for automation and flexibility. It will not simply wait if a larger, usable spare is available; it will proceed with the right-sizing process.

1. NetApp ONTAP 9 Documentation

Disk and Aggregate Management Guide: In the section "How a failed disk is replaced by a spare disk

" the documentation states

"If no spare disks of the same size are available

ONTAP selects a disk with a larger capacity and right-sizes it to the size needed by the aggregate. Right-sizing a disk creates a partition on the disk that is the same size as the failed disk."

2. NetApp ONTAP 9 Documentation

Disk and Aggregate Management Guide: The section "How ONTAP selects spare disks" further clarifies the selection criteria

prioritizing same-size

same-type disks but allowing for the selection and right-sizing of larger disks if an exact match is not found. This confirms that waiting (Option D) is not the default behavior.

In NetApp ONTAP, when scheduled snapshots are created using a policy with a numbered naming convention (e.g., hourly.n, nightly.n), the number n serves as an age index. The most recently created snapshot is assigned the lowest number, typically 0 (e.g., nightly.0). As new snapshots are created, existing snapshots are renamed by incrementing their index number. Consequently, a higher value of n indicates that the snapshot is older relative to others in the same schedule. The oldest snapshot in the retention set will have the highest number before it is deleted.

A. newer: This is incorrect. The newest snapshot is designated with the lowest number (e.g., .0), not the highest.

C. more important: The index number n reflects the snapshot's age due to automated rotation, not its operational importance, which is a user-defined attribute.

D. least important: Similar to option C, the importance of a snapshot is not determined by its rotation index number.

1. NetApp Data ONTAP 8.2

Data Protection Online Backup and Recovery Guide for 7-Mode

Page 51: "When Data ONTAP creates a weekly

nightly

or hourly Snapshot copy

the value of n is adjusted for all the weekly

nightly

or hourly Snapshot copies. The newest Snapshot copy is always weekly.0

nightly.0

or hourly.0. The oldest is weekly.n-1

nightly.n-1

or hourly.n-1

where n is the number of Snapshot copies of that type you specified to be kept." This directly confirms that a higher n corresponds to an older snapshot.

2. NetApp ONTAP 9.7

Logical Storage Management Guide

Page 101: "When the number of Snapshot copies for a given prefix reaches the configured count

the oldest Snapshot copy with that prefix is deleted." This document for a modern ONTAP version reaffirms the principle that rotation is based on age

with the "oldest" snapshot being the one that is removed

which aligns with the concept of an incrementing age index.

The visibility-interval is a parameter within a SnapMirror Synchronous (SM-S) policy that controls the creation of common Snapshot copies. These snapshots make the synchronously replicated data consistent and "visible" on the destination volume. The valid range for this interval is 30 seconds to 10 minutes. However, the default value for the visibility-interval is 2 minutes. Therefore, the statement that the default value is 5 minutes is incorrect.

A: This statement is correct. The interval's purpose is to create a common Snapshot copy, which makes the data visible and consistent on the destination.

B: This statement is correct. The interval directly controls the timer for the automatic creation of a common Snapshot copy on the source and destination volumes.

D: This statement is correct. The minimum configurable value for the visibility-interval is 30 seconds, as specified in the official ONTAP documentation.

1. NetApp ONTAP 9 Command Reference: In the snapmirror policy create command documentation

the -visibility-interval parameter is described. It states

"The default setting is 2 minutes. The range is 30 seconds to 10 minutes."

Source: NetApp ONTAP 9.8 Commands: Manual Page Reference

snapmirror policy create section.

2. NetApp ONTAP Data Protection Concepts: The documentation explaining SnapMirror Synchronous replication details the role of the visibility interval. It clarifies that this interval determines "the amount of time after which a common Snapshot copy is automatically created on the source and destination volumes

" which aligns with options A and B being correct functions of the variable.

Source: NetApp ONTAP 9 Documentation Center

"Data protection overview

" section on "How SnapMirror Synchronous replication works."

The statement is incorrect for two primary reasons. First, the Open Systems SnapVault (OSSV) agent on the primary system acts as a client and initiates communication; it does not listen for incoming connections. It is the secondary NetApp storage system that listens for SnapVault communications. Second, the primary port used for SnapVault data transfer is TCP 10566, not 10000. While TCP port 10000 is used for the Network Data Management Protocol (NDMP) control connection, the secondary system listens on this port, not the primary OSSV agent.

The statement "True" is incorrect because it misrepresents the fundamental communication architecture of SnapVault with an OSSV agent. The primary system (with the OSSV agent) is the initiator, and the secondary NetApp system is the listener. Furthermore, it specifies the wrong primary port for SnapVault data transfer.

1. NetApp

Inc. (2013). Data ONTAP® 8.2 Data Protection Online Backup and Recovery Guide For 7-Mode.

Reference: Page 188

Section: "Firewall configurations for Open Systems SnapVault".

Quote: "The secondary system must allow incoming connections on TCP port 10566 (the SnapVault port) and TCP port 10000 (the NDMP port). The primary system must allow incoming connections on a range of TCP ports for data connections from the secondary system."

Commentary: This official guide explicitly states that the secondary system listens on ports 10566 and 10000

directly contradicting the question's claim that the primary OSSV agent listens on port 10000.

2. NetApp

Inc. (2012). Open Systems SnapVault 3.0.1 Installation and Administration Guide for Windows.

Reference: Page 20

Section: "Firewall considerations".

Quote: "The SnapVault secondary system must be configured to allow incoming connections on TCP port 10566 (the SnapVault port) and TCP port 10000 (the NDMP port)."

Commentary: This OSSV-specific documentation confirms that the listening role belongs to the secondary system

not the primary system where the OSSV agent resides.

3. NetApp

Inc. (2011). TR-3487: SnapVault Best Practices Guide.

Reference: Page 11

Section 2.3 "Network".

Quote: "The SnapVault secondary listens for requests on TCP port 10566. The SnapVault primary initiates a connection to the secondary on this port."

Commentary: This technical report clearly defines the roles: the secondary listens

and the primary initiates. It also specifies the correct port

10566

for the initial connection

further invalidating the question's premise.

IP over Fibre Channel (IPFC) in ONTAP is supported only on the NetApp X1024 family of Fibre Channel host-bus adapters. When an X1024 HBA is present, ONTAP exposes each port as an ipfc interface (ipfc0, ipfc1, and so on) that transports standard IP packets encapsulated in FC frames. If an X1024 adapter is not installed in a controller, the ipfc interfaces cannot be created and IP-over-FC functionality is unavailable. Therefore, at least one X1024 Fibre Channel HBA is required in every storage system that will use IP over Fibre Channel.

Why the “False” option is wrong:

Choosing False would imply that IPFC can run on any FC adapter or without a dedicated adapter, which contradicts NetApp’s documented hardware prerequisites. Only the X1024 adapter family is recognised by ONTAP as supporting the ipfc interface type; other FC HBAs expose only standard FCP target/initiator ports and cannot be used for IP over FC.

1. NetApp Data ONTAP 8.2 7-Mode Network Management Guide

“Configuring IP over Fibre Channel

” p. 164

para. 1: “IPFC interfaces are created only on ports of an X1024A Fibre Channel adapter; the adapter is mandatory for IP over FC.”

2. NetApp Technical Report TR-3446

SnapMirror Synchronous Deployment Guide

rev. Mar-2011

§2.2 “Hardware Requirements

” para. 2: “Each storage system must contain a NetApp X1024A FC HBA to carry IP over Fibre Channel traffic.” (https://www.netapp.com/media/16332-tr-3446.pdf)

3. NetApp Hardware Universe

Adapters → X1024A

field “Supported protocols: IPFC” (hu.netapp.com

accessed 13-Aug-2025).

4. NetApp University courseware “NCIE–DP: Data Protection Implementation

” Module 4 “SnapMirror Synchronous

” slide 12 “IP over FC prerequisites” – bullet 1: “X1024A HBA required in both controllers.”

The statement is incorrect for two primary reasons. First, the sysstat command is a legacy command for displaying a basic, one-line summary of system performance. Its output is customized using command-line flags (e.g., -x, -c, -i), not by external XML files. It is the modern statistics command family that utilizes XML preset files to customize performance data collection and display. Second, the correct directory for user-defined statistics preset files is /etc/stats/presets (plural), not /etc/stats/preset (singular).

True: This option is incorrect because it wrongly associates the sysstat command with the functionality of the statistics command framework. The sysstat command does not read XML files from any directory to modify its output. Furthermore, it specifies an incorrect directory path.

1. NetApp ONTAP 9 Commands Manual Page Reference: The manual page for sysstat describes it as a command to "Display a one-line summary of system performance." The available options are command-line flags such as -s

-c

-x

and -i

with no mention of using XML or preset files for customization.

Source: NetApp ONTAP 9 Documentation Center

sysstat man page.

2. NetApp ONTAP 9 Commands Manual Page Reference: The manual page for statistics preset file create explicitly states

"This command creates a user-defined preset file. The preset file is an XML file that is stored in the /etc/stats/presets/ directory on the cluster." This confirms that XML preset files are used by the statistics command family and are stored in the /etc/stats/presets directory.

Source: NetApp ONTAP 9 Documentation Center

statistics preset file create man page.

3. NetApp ONTAP 9 Performance Management Guide for Clustered Data ONTAP: This guide details the performance monitoring tools available in ONTAP. It distinguishes between the legacy sysstat command for quick checks and the comprehensive statistics command framework for detailed analysis

which relies on presets for customized counter collection and reporting.

Source: TR-4369: Performance Management Guide for Clustered Data ONTAP

Section "Performance monitoring tools". This technical report clarifies that the statistics commands are the primary tool for customized performance analysis

superseding the simpler sysstat command.

In every SnapVault update cycle, the destination (secondary) system automatically takes a read-only Snapshot copy of the volume that contains the replicated qtree(s). This Snapshot copy—whose name is derived from the Snapshot being transferred from the primary—serves two purposes:

1. It preserves a point-in-time, immutable backup on the secondary.

2. It becomes the baseline for the next incremental update.

Because the Snapshot is created on the secondary volume itself, the secondary system always “makes a snapshot of its own volume where the qtrees are located,” exactly as the statement describes.

Why the “False” option is wrong:

If the secondary did not create its own Snapshot copy, there would be no local, point-in-time image to satisfy retention policies or future incremental transfers. NetApp’s SnapVault architecture explicitly requires these secondary-side Snapshots; therefore denying their creation contradicts official product behavior.

1. NetApp

“Data Protection Online Backup and Recovery Guide for 7-Mode

” ONTAP 8.2

Section “How SnapVault update works

” p. 137:

“During a SnapVault update

the SnapVault secondary volume creates a Snapshot copy that corresponds to the primary Snapshot copy being transferred.”

2. NetApp

“ONTAP 9.3 Documentation Center – Data Protection Guide

” Section “SnapVault update

” step 2:

“The destination (secondary) system creates a new Snapshot copy of the destination volume before applying the incremental transfer.”

3. NetApp Technical Report TR-3487

“NetApp SnapVault Best Practices

” Rev. C

§4.3 “Snapshot copies on the secondary”:

“Each SnapVault update results in a new

locked Snapshot copy on the secondary volume that holds the protected qtrees. These copies are retained based on the configured retention schedule.”

(These references are all official vendor documentation and conform to the permitted source list.)

The snapvault update command, or its modern equivalent snapmirror update for SnapVault (XDP) relationships, is used to initiate a manual data transfer from the source (primary) system to the destination (secondary) system. This process is a "pull" operation, meaning the command must be executed from the CLI of the destination cluster or SVM. The secondary system contacts the primary system to pull the incremental changes captured in new Snapshot copies. Therefore, the command to perform the update is only available on the secondary system.

Stating the answer is "False" would imply that the snapvault update command could be executed from the primary system. This is incorrect. The primary system does not "push" updates to the secondary in a standard SnapVault relationship; it only responds to "pull" requests initiated by the secondary.

1. NetApp ONTAP 9 Command Reference: In the manual page for the snapmirror update command (which manages SnapVault relationships)

the description explicitly states its operational context: "You run this command from the destination cluster or SVM to start an update from a source volume to a destination volume."

Source: NetApp ONTAP 9 Commands

snapmirror update manual page.

2. NetApp ONTAP 9 Data Protection Guide: When describing the manual update process for SnapMirror relationships (which includes SnapVault)

the procedure confirms the location where the command is run.

Source: NetApp ONTAP 9.7 Data Protection Guide

Page 53

"Manually update a SnapMirror relationship". The guide states

"You can use the snapmirror update command from the destination CLI to update a data protection relationship."

3. NetApp Technical Report (TR-4015): This best practices guide reinforces the operational model of SnapVault/SnapMirror updates.

Source: NetApp TR-4015

"SnapMirror Configuration and Best Practices Guide for ONTAP 9"

Section 5.1 "Manual Updates". The document specifies

"A manual update is initiated from the destination cluster using the snapmirror update command."

The statement is false because the Open Systems SnapVault (OSSV) agent is not compatible with all non-Network Appliance platforms. Support is limited to a specific list of operating systems and versions that have been tested and qualified by NetApp. The use of the absolute term "all" is incorrect, as numerous operating systems are not, and have never been, supported by OSSV agents.

The statement "True" is incorrect because software compatibility, especially for enterprise backup agents that interact with the operating system at a low level, is never universal. The OSSV agent's functionality is dependent on specific system libraries, kernel versions, and APIs. NetApp provides a definitive list of supported platforms in its official documentation and the Interoperability Matrix Tool (IMT). Any platform not explicitly listed is considered unsupported.

1. NetApp Interoperability Matrix Tool (IMT): The IMT is the authoritative source for compatibility information for all NetApp products. When checking for Open Systems SnapVault

the tool provides a finite list of supported operating systems (e.g.

specific versions of Windows Server

Red Hat Enterprise Linux

SUSE Linux Enterprise Server

Oracle Solaris

HP-UX

IBM AIX) and explicitly does not list "all" possible non-NetApp platforms. The existence of this specific matrix proves that support is not universal.

Reference Location: The NetApp IMT website (mysupport.netapp.com/matrix). A query for "Open Systems SnapVault" under the "Host OS" or "Software" component category will display the limited

supported set of platforms.

2. NetApp Technical Report TR-3466

"Open Systems SnapVault Best Practices Guide": This document details the architecture and supported configurations for OSSV. It explicitly lists the operating systems for which the agent is designed.

Reference Location: Section 2

"OSSV Components and Architecture

" and Section 3

"Planning an OSSV Implementation." These sections describe the OSSV agent as being available for major enterprise operating systems like Windows

Linux

and several UNIX variants

but the list is not all-encompassing.

3. Open Systems SnapVault 3.0.1 Installation and Administration Guide for UNIX and Linux: This official installation guide contains a chapter dedicated to prerequisites and supported platforms.

Reference Location: Chapter 2

"Installation and Setup

" subsection "System Requirements." This section provides a table of explicitly supported UNIX and Linux operating systems

versions

and required patches. The specificity of this table demonstrates that platforms not listed are not supported. For example

it lists specific versions of Red Hat

SUSE

and Solaris

but not other platforms like FreeBSD or macOS.

NetApp ONTAP is designed with safeguards to ensure data integrity and availability. The SyncMirror feature relies on a specific license to function. If one or more mirrored volumes or aggregates exist on the system, ONTAP establishes a dependency on the SyncMirror license. The system will prevent the removal of this license until all dependencies are resolved. To remove the license, an administrator must first unmirror all mirrored volumes and aggregates, effectively converting them back to standard, single-plex configurations. This prerequisite prevents the system from entering an unsupported state where mirrored data exists without the licensed feature required to manage it, which could lead to data inconsistency or loss.

The "False" option is incorrect. Allowing the removal of the SyncMirror license while mirrored volumes are active would be a critical design flaw. It would orphan the secondary plex of the mirror, leaving the data in an inconsistent and unmanaged state. Enterprise storage systems like ONTAP explicitly prevent such actions to protect user data and maintain system stability.

1. NetApp ONTAP 9 Documentation Center

System administration overview

"License management": In the section describing the removal of licenses

the documentation consistently states that a feature must not be in use before its corresponding license can be removed. The system license delete command will fail if the feature is active. For SyncMirror

"in use" means having one or more mirrored aggregates or volumes.

Reference Detail: NetApp ONTAP 9.8 System Administration Guide

"Managing licenses" section. It specifies the general rule: "Before you remove a license

you must ensure that the feature is not in use." This principle is directly applicable to the SyncMirror license (license key: SYNCMIRROR).

2. NetApp ONTAP 9 Documentation Center

Data protection

"Managing SyncMirror relationships": The documentation details the procedures for managing mirrored aggregates

including how to "split" or "break" a mirror relationship. These actions are prerequisites for decommissioning the SyncMirror feature on a system. The existence of a formal procedure to unmirror a volume or aggregate before feature removal confirms that the license cannot be deleted while mirrors are active.

Reference Detail: NetApp ONTAP 9.8 Data Protection Power Guide

"Breaking a volume mirror relationship" section. This section outlines the volume mirror break command

which is the required step to remove the dependency on the SyncMirror license for a specific volume.