NS0-162 Exam Dumps - NetApp Certified Data Administrator (ONTAP)

Active IQ Unified Manager is a web-based tool that monitors the health, performance, capacity, and protection of clusters and SVMs. It provides alerts, reports, dashboards, and recommendations to help optimize and troubleshoot the ONTAP environment. Active IQ Unified Manager can be used to validate the deployment of a NetApp AFF A400 cluster by checking the cluster configuration, status, and efficiency1.

Active IQ Config Advisor is a desktop tool that scans the cluster and its components for configuration issues, best practices violations, and potential problems. It generates a report that identifies the errors, warnings, and informational messages along with the suggested actions to resolve them. Active IQ Config Advisor can be used to validate the deployment of a NetApp AFF A400 cluster by verifying the hardware, software, network, and storage settings2.

The other tools are not relevant for validating the deployment of a NetApp AFF A400 cluster. OnCommand Workflow Automation is a tool that automates storage management tasks using predefined or custom workflows. Active IQ Web site is a tool that provides insights and recommendations based on the data collected from NetApp systems34. References :- Active IQ Unified Manager overview, Active IQ Config Advisor overview, OnCommand Workflow Automation overview, Active IQ overview

 The number of ISCSI LIFs that will be created from the SVM setup wizard, as shown in the exhibit, is 16. This is because the LIFs per node field is set to 2, and there are 4 nodes in the cluster. Therefore, the total number of LIFs is 2 x 4 8 for each SVM, and since there are two SVMs, the total number of LIFs is 8 x 2 16. The other options are incorrect because they do not match the calculation based on the exhibit. References :- Configure an SVM for iSCSI, Configure iSCSI on an existing SVM

The igroup is a logical grouping of initiators that can access a set of LUNs. The igroup must contain the IQNs (iSCSI Qualified Names) or WWPNs (World Wide Port Names) of the initiators that need to access the LUNs. In this scenario, the igroup named “ESX” has the iSCSI protocol and the VMware OS type, but it does not have any initiators listed. This means that the VMware hosts cannot authenticate and connect to the LUNs in the SVM. To resolve this issue, the igroup must be populated with the correct initiators that match the VMware hosts. This can be done by using the igroup add command or the System Manager GUI12. References :- Create an igroup, Add initiators to an igroup

 CIFS is the NetApp implementation of the SMB protocol, which enables file sharing between Windows clients and NetApp storage systems. To use CIFS, the storage system must have a valid CIFS license installed and configured. If a node fails on an HA configuration, the surviving node takes over the resources and services of the failed node, including the CIFS server. However, if the surviving node does not have a CIFS license, the CIFS server cannot start and the clients cannot access their data. Therefore, the lack of CIFS license on the surviving node is a possible cause of the problem. References :- CIFS and SMB overview, Licensing overview, Troubleshooting CIFS issues

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 The correct way to warm the cache before clients access the cache volume for the first time is to prepopulate the cache volume with data from the origin volume using the flexcache prepopulate start command. This command copies the data blocks from the origin volume to the cache volume in the background, without affecting the client access to the origin volume. The other options are not valid for this scenario because:

• Enabling block-level invalidation using the volume flexcache origin config modify command does not warm the cache, but rather allows the origin volume to invalidate the cached data blocks when they are modified or deleted.
• Copying the data from the origin volume to the cache volume with the NetApp XCP Migration Tool is not recommended, as it can cause data inconsistency and performance degradation. XCP is a data migration tool that can copy data between different types of volumes, such as FlexVol and FlexGroup, but not between FlexCache and origin volumes.
• Synchronizing the origin and cache first with the volume flexcache sync-properties command does not warm the cache, but rather ensures that the cache volume inherits the properties of the origin volume, such as size, security style, and export policy. References :- Prepopulate a FlexCache volume, FlexCache volume concepts, FlexCache volume best practices

The correct action to solve the problem is to update the Selective LUN Map configuration for the LUN mapping. Selective LUN Map (SLM) is a feature that enables you to control which LUNs are visible to which hosts in an ONTAP cluster. SLM reduces the number of paths that are presented to the host and improves the performance and manageability of the SAN environment1. When you perform a volume move, the LUN mapping is automatically updated to include the new node as a destination node, but the old node remains as a source node until the move is completed. This causes ALUA to see twice the number of paths to the LUN, as both nodes are active for the LUN. To avoid this, you need to update the SLM configuration to remove the source node from the LUN mapping after the volume move is done2. Changing the MPIO policy on the host, ensuring that the fabric zoning is correct, or rebooting the host are not actions that would solve the problem, as they do not affect the LUN mapping or the ALUA state. References :- Selective LUN Map overview, How to use Selective LUN Map (SLM) with Volume Move

The point-to-point topology is the simplest and most common way to connect a single host to a storage system using FC. It allows direct communication between two devices without any intermediate devices. The UTA2 ports on the AFF A220 cluster support the point-to-point topology when configured as FC ports. Therefore, to connect a single Windows host directly to the storage using FC, you need to use the point-to-point topology on all ports and make sure that the host and the storage have compatible FC settings, such as speed, WWPN, and zoning. The other options are not correct because they involve additional devices or topologies that are not necessary or supported for this scenario. References :- Quick guide - AFF A220, Detailed guide - AFF A220, ONTAP 9 SAN Configuration Guide

When a LUN has space reservations disabled (a non-space-reserved LUN), and its containing volume has no space guarantee, ONTAP reports the volume usage based on the actual data written to the LUN, not the LUN size. Therefore, ONTAP reports that the volume is using 10 GB of its containing aggregate, and the volume is 10% full. References :- Understanding space reservations for LUNs in System Manager, Recommended volume and file or LUN configuration combinations overview