NS0-521: Implementation Engineer-SAN ONTAP Exam - Free download from Exam Files

What Is the storage construct that enables an NVMe client to store data in an SVM?

Subsystem
Namespace
FlexGroup volume
LUN

Correct answer: A

Explanation:

In an NVMe environment, the storage construct that enables an NVMe client to store data in an SVM (Storage Virtual Machine) is a Subsystem. A subsystem is a collection of one or more namespaces, which are used to store data. This abstraction allows for efficient management and scaling of NVMe storage within the ONTAP environment.For further information, refer to:NetApp NVMe/FC Configuration (NetApp).

In an NVMe environment, the storage construct that enables an NVMe client to store data in an SVM (Storage Virtual Machine) is a Subsystem. A subsystem is a collection of one or more namespaces, which are used to store data. This abstraction allows for efficient management and scaling of NVMe storage within the ONTAP environment.

For further information, refer to:

NetApp NVMe/FC Configuration (NetApp).

An administrator finishes an installation of a new NetApp ASA system at the customer site and creates a new LUN. The customer wants to restrict the access of the LUN to specific UFs.

Where would the administrator configure this?

Zoning
igroup
Selective LUN Map
Portset

Correct answer: B

Explanation:

To restrict access to a newly created LUN to specific hosts, the administrator should configure the igroup (initiator group). An igroup is used to control which initiators (hosts) are allowed to access specific LUNs. This ensures that only authorized hosts can access the storage, enhancing security and access control.For more details, refer to:NetApp Documentation on iGroups (NetApp).

To restrict access to a newly created LUN to specific hosts, the administrator should configure the igroup (initiator group). An igroup is used to control which initiators (hosts) are allowed to access specific LUNs. This ensures that only authorized hosts can access the storage, enhancing security and access control.

For more details, refer to:

NetApp Documentation on iGroups (NetApp).

A customer wants to enable CHAP authentication on their iSCSI sessions.

Which command should be used to set up the appropriate security policies and passwords?

vserver iscsi security create
igroup initiator modify
security certificate create
security login create

Correct answer: A

Explanation:

To enable CHAP (Challenge-Handshake Authentication Protocol) authentication on iSCSI sessions, the command vserver iscsi security create should be used. This command sets up the necessary security policies and passwords required for CHAP authentication, ensuring secure access to iSCSI targets.For more details, refer to:NetApp Documentation on iSCSI Configuration (NetApp).

To enable CHAP (Challenge-Handshake Authentication Protocol) authentication on iSCSI sessions, the command vserver iscsi security create should be used. This command sets up the necessary security policies and passwords required for CHAP authentication, ensuring secure access to iSCSI targets.

For more details, refer to:

NetApp Documentation on iSCSI Configuration (NetApp).

Which two steps must be taken first to restore a LUN from a SnapMirror Synchronous destination? (Choose two.)

Resync the relationship.
Release the relationship.
Delete the relationship.
Initialize the relationship.

Correct answer: BC

Explanation:

To restore a LUN from a SnapMirror Synchronous destination, the following steps must be taken:Release the relationship: This step is necessary to break the SnapMirror relationship, allowing the LUN to be restored independently.Delete the relationship: After releasing the relationship, deleting it ensures that there are no residual dependencies or configurations that might interfere with the restore process.For more information, refer to:NetApp Documentation on SnapMirror Synchronous (NetApp) (NetApp).

To restore a LUN from a SnapMirror Synchronous destination, the following steps must be taken:

Release the relationship: This step is necessary to break the SnapMirror relationship, allowing the LUN to be restored independently.

Delete the relationship: After releasing the relationship, deleting it ensures that there are no residual dependencies or configurations that might interfere with the restore process.

For more information, refer to:

NetApp Documentation on SnapMirror Synchronous (NetApp) (NetApp).

An administrator configured an SVM with LUNs with two WWPNs per node. The administrator accidentally created a WWPN on node1 that needs to move to node2. The SAN hosts use ALUA.

Based on this requirement, what must be taken offline to correct the situation?

LIF
LUN
SVM
Volume

Correct answer: A

Explanation:

To move a WWPN from node1 to node2 in a NetApp ONTAP SAN environment where ALUA is used, you must take the Logical Interface (LIF) offline. Modifying LIFs involves changing their assignment between nodes, which requires them to be temporarily offline. This ensures that the path states are correctly updated without causing disruption to the SAN hosts.For more details, see:NetApp Community on Moving LIFsNetApp Documentation on SAN LIFs

To move a WWPN from node1 to node2 in a NetApp ONTAP SAN environment where ALUA is used, you must take the Logical Interface (LIF) offline. Modifying LIFs involves changing their assignment between nodes, which requires them to be temporarily offline. This ensures that the path states are correctly updated without causing disruption to the SAN hosts.

For more details, see:

NetApp Community on Moving LIFs

NetApp Documentation on SAN LIFs

A customer Is setting up a four-node NetApp AFF cluster for use with NVMe/TCP and wants to use automatic host discovery.

Which protocol is used for the discovery of controllers?

TFTP
mDNS
LLDP
PXE

Correct answer: B

Explanation:

For automatic host discovery in a four-node NetApp AFF cluster using NVMe/TCP, the protocol used is mDNS (Multicast DNS). mDNS allows for the discovery of controllers and other networked devices without the need for a centralized DNS server, simplifying the setup process in environments that support NVMe over TCP.For further information, refer to:NetApp Documentation on NVMe/TCPNetApp Community on Host Discovery

For automatic host discovery in a four-node NetApp AFF cluster using NVMe/TCP, the protocol used is mDNS (Multicast DNS). mDNS allows for the discovery of controllers and other networked devices without the need for a centralized DNS server, simplifying the setup process in environments that support NVMe over TCP.

For further information, refer to:

NetApp Documentation on NVMe/TCP

NetApp Community on Host Discovery

Which NetApp feature presents LUNs only within the HA pair?

Selective LUN Mapping
Subsystem
Consistency group
igroup

Correct answer: A

Explanation:

Selective LUN Mapping (SLM) is the feature that presents LUNs only within the HA pair. SLM allows administrators to control which LUNs are visible to which hosts, ensuring that LUNs are only accessible through the designated HA pair, thus improving security and manageability.For more information, see:NetApp Documentation on Selective LUN MappingNetApp Community on LUN Mapping

Selective LUN Mapping (SLM) is the feature that presents LUNs only within the HA pair. SLM allows administrators to control which LUNs are visible to which hosts, ensuring that LUNs are only accessible through the designated HA pair, thus improving security and manageability.

For more information, see:

NetApp Documentation on Selective LUN Mapping

NetApp Community on LUN Mapping

An SVM is created for FCP traffic. LUNs must be created to share with ESXi hosts for datastores. Which two items must be configured after the LUN is created, for this to happen? (Choose two.)

Create an igroup with the ESXi hosts' WWPNs.
Create an igroup with the ESXi hosts' WWNNs.
Configure CHAP authentication.
Map the LUNs to the igroup.

Correct answer: AD

Explanation:

For configuring LUNs to share with ESXi hosts for datastores in an SVM created for FCP traffic, the following steps are necessary after creating the LUN:Create an igroup with the ESXi hosts' WWPNs: This step involves defining an initiator group that includes the WWPNs of the ESXi hosts that need access to the LUN.Map the LUNs to the igroup: This step assigns the LUN to the created igroup, allowing the ESXi hosts to access the LUN.For further details, refer to:NetApp Documentation on LUN and igroup Configuration

For configuring LUNs to share with ESXi hosts for datastores in an SVM created for FCP traffic, the following steps are necessary after creating the LUN:

Create an igroup with the ESXi hosts' WWPNs: This step involves defining an initiator group that includes the WWPNs of the ESXi hosts that need access to the LUN.

Map the LUNs to the igroup: This step assigns the LUN to the created igroup, allowing the ESXi hosts to access the LUN.

For further details, refer to:

NetApp Documentation on LUN and igroup Configuration

An administrator needs to ensure that Snapshot copies of database files across multiple FCP LUNs are taken at the same point in time.

Which two configurations enable the administrator to achieve this? (Choose two.)

Create each LUN within the same FlexVol volume.
Create a consistency group that uses FlexGroup volumes.
Create a consistency group that uses FlexVol volumes.
Create each LUN within the same FlexGroup volume.

Correct answer: CD

Explanation:

To ensure that Snapshot copies of database files across multiple FCP LUNs are taken at the same point in time, the following configurations can be used:Create a consistency group that uses FlexVol volumes: This setup ensures that snapshots of all volumes in the consistency group are taken simultaneously.Create each LUN within the same FlexGroup volume: This configuration allows for a unified snapshot across multiple LUNs within the FlexGroup, ensuring data consistency.For more details, see:NetApp Documentation on Consistency GroupsNetApp FlexGroup Overview

To ensure that Snapshot copies of database files across multiple FCP LUNs are taken at the same point in time, the following configurations can be used:

Create a consistency group that uses FlexVol volumes: This setup ensures that snapshots of all volumes in the consistency group are taken simultaneously.

Create each LUN within the same FlexGroup volume: This configuration allows for a unified snapshot across multiple LUNs within the FlexGroup, ensuring data consistency.

For more details, see:

NetApp Documentation on Consistency Groups

NetApp FlexGroup Overview

Which two NetApp features provide synchronous data replication between two sites for SAN workloads with automatic failover in case of a site disaster? (Choose two.)

SnapMirror active sync
SnapMirror SVM
SnapMirror Synchronous
MetroCluster IP

Correct answer: CD

Explanation:

For synchronous data replication between two sites with automatic failover in case of a site disaster for SAN workloads, the two NetApp features that provide these capabilities are SnapMirror Synchronous and MetroCluster IP.SnapMirror Synchronous: This feature provides volume-granular, synchronous replication with zero RPO (Recovery Point Objective), ensuring that data is mirrored in real-time to a secondary site. This setup supports automatic failover, maintaining data availability even during site failuresMetroCluster IP: This solution provides synchronous replication and combines high availability and disaster recovery capabilities. MetroCluster IP uses IP networking to extend the distance over which replication can occur and supports automatic failover and failback, making it suitable for critical SAN workloads

For synchronous data replication between two sites with automatic failover in case of a site disaster for SAN workloads, the two NetApp features that provide these capabilities are SnapMirror Synchronous and MetroCluster IP.

SnapMirror Synchronous: This feature provides volume-granular, synchronous replication with zero RPO (Recovery Point Objective), ensuring that data is mirrored in real-time to a secondary site. This setup supports automatic failover, maintaining data availability even during site failures

MetroCluster IP: This solution provides synchronous replication and combines high availability and disaster recovery capabilities. MetroCluster IP uses IP networking to extend the distance over which replication can occur and supports automatic failover and failback, making it suitable for critical SAN workloads