The broadcast-domain split command allows you to create a new broadcast domain by moving one or more ports from an existing broadcast domain to the new one. In this scenario, you can use this command to move the e0e and e0c ports from the Default broadcast domain to a new broadcast domain in the same IPspace. This would satisfy the requirement of creating a new broadcast domain with the specified ports. The other options are not valid for this scenario, as they either create a new broadcast domain without moving any ports (A), merge two existing broadcast domains into one (D), or require a graphical user interface ©. References :- network port broadcast-domain split, Create a broadcast domain

 You can use ONTAP System Manager or the command line interface to disable the unused Ethernet ports in an ONTAP 9.8 cluster. ONTAP System Manager is a web-based graphical user interface that enables you to manage storage systems, clusters, and resources. The command line interface is a text-based interface that enables you to perform administrative tasks using commands. Both methods allow you to modify the network port settings and remove the ports from the broadcast domain. Active IQ Config Advisor and Active IQ Unified Manager are not methods to disable the unused Ethernet ports, but tools to monitor and optimize the cluster performance and configuration. References :- Monitor the reachability of network ports in ONTAP 9.8 and later, Map network ports using ONTAP 9.8 or later, Map network ports using ONTAP 9.7 or earlier

The problem of being unable to upload large files or migrate VMs to the new NFS datastore is likely caused by a mismatch in the maximum transmission unit (MTU) settings between the network switches, the ONTAP cluster, and the vSphere hosts. The exhibit shows that the broadcast domain for the NFS LIF has an MTU of 9,000 bytes, which means that it is configured for jumbo frames. However, the default MTU for the VMkernel ports on the vSphere hosts is 1,500 bytes, which means that they are not configured for jumbo frames. This can result in packet fragmentation, dropped packets, or reduced performance. To correct the problem, the MTU of the VMkernel ports on the vSphere hosts should be changed to 9,000 bytes to match the MTU of the broadcast domain and the network switches. This will enable the vSphere hosts to send and receive jumbo frames and improve the NFS performance. References :- ProvisionNFS storage for VMware datastores, vSphere NFS datastore - Version 3 with ONTAP, Configure jumbo frames for VMkernel networking

To find out how many files are in the NAS volumes of the cluster and how old these files are, you can use the following two tools:

• ONTAP System Manager 9.8 provides a way for admins to find out file system information in any NAS storage volume quickly and easily by enabling a low-impact scanner for each volume. This scanner crawls the ONTAP file system in the background with a low priority job and delivers a wealth of information that is available as soon as you navigate to the volume details page. You can see the file and directory count, the file-age histograms, the capacity use, and other parameters for each volume1.
• ONTAP CLI provides the filestats command that can display a summary of file statistics within a volume on a storage system by reading the file information from a snapshot copy that you specify. You can use various options to filter the output by file size, file type, file age, and so on2.
• Active IQ Config Advisor and Active IQ Unified Manager are not the tools that can fulfill this requirement, as they are mainly used for monitoring and managing the health, performance, and configuration of the cluster, not the file system details of the volumes34. References :- Active IQ Config Advisor, Active IQ Unified Manager, How to report file sizes within a volume using the filestats command, ONTAP 9.8 Feature Overview.

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

 NetApp ONTAP Select is a software-only version of ONTAP that can run on commodity servers with direct-attached storage. It supports both block and file protocols, including NFS, NVMe, and CIFS. SCSI and FCP are not supported by ONTAP Select. References :- ONTAP Select overview, Client protocols, Software-Defined Storage with ONTAP Select

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

The availability of the remote cluster in the peering relationship shows “Partial” only if some nodes in the local cluster are not able to contact some or all nodes in the peer cluster1. This means that there is a network connectivity issue between some of the intercluster LIFs on the local and remote clusters. This can affect the data transfer and API communication between the clusters. The other options are not correct because they would result in different availability statuses, such as Unavailable, Pending, or Unidentified1. References :- cluster peer show, Cluster peering issues after upgrade to ONTAP 9.11.1, Output of “cluster peer health show” intermittently displays “session_reachable” for data ping

 The error message in the exhibit indicates that access to a specific file was denied. This is typically due to insufficient permissions. By setting the user’s permission for the share to write, it would allow them to save files on that share. References: Troubleshooting CIFS or SMB access denied, Shared folder “Access is Denied” between Windows computers

FlexCache is a remote caching capability that simplifies file distribution, reduces WAN latency, and lowers WAN bandwidth costs. It enables distributed product development across multiple sites, as well as branch office access to corporate datasets. FlexCache only caches the actively-read data, rather than entire files or volumes, either locally within a datacenter or geographically dispersed at remote sites. This allows more data to fit in-memory, parallelize queries across hundreds of nodes, and index data faster. FlexCache can improve the speed and productivity of collaboration across multiple locations for read-intensive workloads such as content generation, movie rendering, chip-design, seismic analysis, and financial simulation. References :- What Is FlexCache?, Scale-Out NAS

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

 FabricPool is a feature of ONTAP that allows you to tier cold data from a local tier (aggregate) to a capacity tier (object storage) in the cloud or on-premises. ONTAP 9.8 supports four types of capacity tiers: AWS S3, Azure Blob, Google Cloud Storage, and ONTAP S3. StorageGRID is a NetApp product that provides on-premises S3 object storage. Therefore, both StorageGRID and ONTAP S3 are supported as capacity tiers for FabricPool aggregates in ONTAP 9.8. SWIFT Object Store and NFS Export are not supported as capacity tiers for FabricPool aggregates. References :- Considerations and requirements for using FabricPool, Storage Efficiencies, FabricPool with StorageGRID Recommendation Guide

 Intercluster LIFs are used for communication between FlexCache clusters and for data transfer between origin and cache volumes. If the WAN connection drops, the intercluster LIFs on both sides of the FlexCache relationship will be marked as down. To troubleshoot the disconnect, you can ping the intercluster LIFs from another cluster or from a host on the same network to verify their reachability. You can also use the network ping-lif command to ping the intercluster LIFs from the cluster shell. References :- FlexCache overview, Unable to clean FlexCache relationship, FlexCache in ONTAP, What Is FlexCache?

SMB Server in workgroup mode allows the SMB server to authenticate users locally without relying on a domain controller or name services. CIFS local users are users that are created and managed by the ONTAP CIFS server and can be used for CIFS authentication and authorization. These features are supported by ONTAP software for the IoT application that will use SMB shares on a remote ONTAP Select instance, where there are no name services and only a local network is available at the remote IoT site. Active Directory users and SMB3 Witness protocol are not supported in this scenario, as they require name services and network connectivity between the SMB server and the client. References :- Create an SMB server in a workgroup, Local users and groups concepts, Protocols CIFS local-users endpoint overview

 The action that you should take to ensure that the LIF only fails over to the correct ports is to change the LIF’s failover policy to sfo-partner-only. This failover policy restricts the target ports to the home node and its storage failover (SFO) partner only, excluding any other nodes in the cluster. This way, the LIF will only fail over to port eOc or eOd on either storage node, as shown in the exhibit. The other options are not valid for this scenario because:

• Creating a DNS load balancing zone does not affect the LIF failover behavior, but rather provides a way to distribute client requests across multiple LIFs using DNS round-robin.
• Splitting the broadcast domain does not ensure that the LIF only fails over to the correct ports, but rather creates separate groups of ports that are on the same Ethernet broadcast domain. This may affect the LIF reachability and performance.
• Creating an IPspace does not ensure that the LIF only fails over to the correct ports, but rather isolates network traffic for a set of SVMs within a cluster. This may affect the LIF connectivity and security. References :- Network interface failover policies - behavior and uses, Configure failover settings on a LIF, storage failover takeover

The performance capacity report shows the current and optimal performance metrics for the CPU resource on each node of the cluster. The current metrics reflect the actual workload on the resource, while the optimal metrics reflect the workload that would result in the best performance. The performance capacity, or headroom, is the difference between the current and optimal metrics. A low or negative headroom indicates that the resource is over utilized and may experience performance degradation. The exhibit shows that both nodes have negative headroom for the CPU resource, which means that the CPU has been over utilized. A storage failover event will cause performance issues, as the surviving node will have to handle the workload of both nodes, which will further reduce the headroom and increase the latency. References :- Identify remaining performance capacity, What is Performance Capacity in ONTAP 9 and Unified Manager?

 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

 A data LIF is a logical interface that provides data access to clients and applications using various protocols. A data LIF has a service data policy that defines the type of data service that the LIF can provide. In this scenario, to allow object storage access to a bucket that is hosted in ONTAP software, the data LIF must have the data-S3-server service data policy. This policy enables the data LIF to serve S3 requests from clients and applications that use the S3 protocol. The other service data policies are not relevant for this scenario12. References :- Create a data LIF, Service data policies for data LIFs

 The route is a network configuration that defines how the traffic from a LIF is routed to a destination. The route consists of a destination, a gateway, and a metric. The destination is the IP address or subnet that the LIF wants to reach. The gateway is the IP address of the next-hop router that forwards the traffic to the destination. The metric is a numerical value that indicates the preference of the route. In this scenario, the route for the SVM vs0 has a destination of 0.0.0.0/0, which means any IP address or subnet. The gateway is 10.61.208.1, which is the IP address of the router that connects the LIF to the rest of the network. The metric is 20, which is a relatively low value that indicates a high preference. However, the gateway is incorrect, as it does not match the subnet of the LIF. The LIF has an IP address of 192.0.2.130 and a netmask of 255.255.255.0, which means its subnet is 192.0.2.0/24. The gateway should be an IP address within the same subnet, such as 192.0.2.1. This would allow the LIF to communicate with the router and reach other destinations. The incorrect gateway causes connectivity issues, as the LIF cannot find a valid route to send or receive traffic. To resolve this issue, the route needs to be modified to reflect the correct gateway using the network route create or network route modify commands or the System Manager GUI12. References :- Create a route, Modify a route

 NetApp’s All SAN Array (ASA) is a dedicated SAN-only solution that provides high performance and availability for mission-critical applications. ASA supports up to 2-node clusters, which can be either HA pairs or MetroCluster configurations. ASA does not support single node, 12-node, or 24-node clusters, as these are reserved for ONTAP systems that support both SAN and NAS protocols. References :- All-Flash SAN Array (ASA) A-Series Systems, All-Flash SAN Array software configuration overview, ASA system does not report as SAN optimized

NVMe is a protocol that enables fast and efficient access to storage devices over a network. NVMe uses NVM Express over Fabrics (NVMe-oF) to transport commands and data between hosts and storage systems. NVMe-oF uses NVM subsystems, which are logical containers for one or more NVMe namespaces. A namespace is a logical unit of storage that can be accessed by a host. A host can discover and connect to an NVM subsystem by using a unique NVM subsystem identifier (NQN). ONTAP supports NVMe/FC and NVMe/RoCE as the transport protocols for NVMe-oF. ONTAP maps NVMe namespaces to LUNs and NQNs to subsystems. ONTAP also maps initiator groups to subsystems to control host access to namespaces. References :- NVMe Overview, Implementing and Configuring Modern SANs with NVMe/FC, NVMe-oF host configuration for RHEL 8.9 with ONTAP

 To join an SVM for CIFS access only to an existing Active Directory domain, you need to perform the following actions:

Domain Name System

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• Create DNS entries for the SVM name and the data LIF IP address on the DNS server that is authoritative for the domain. This enables the domain controller to resolve the SVM name and the data LIF IP address.

• Create a data LIF on the SVM that will be used by the CIFS clients to access the data. The data LIF must have an IP address that belongs to the same subnet as the domain controller or a routable subnet.

• Create NTP entries for the SVM to synchronize the time with the domain controller. The time difference between the SVM and the domain controller must be within five minutes, otherwise the domain join operation will fail.

• You do not need to create export policies or cluster LIFs for CIFS access only. References :- Join a SVM to an Active Directory domain, Create a new SVM with a CIFS volume and share, ONTAP - Joining an SVM to an Active Directory domain

 To configure data-at-rest encryption for your NetApp ONTAP 9.8 cluster without KMIP services, you need to enable onboard key management and cluster-wide FIPS-compliant mode. Onboard key management allows you to use a passphrase to generate and protect the cluster-wide encryption key, which is used to encrypt the disk encryption keys. Cluster-wide FIPS-compliant mode ensures that the encryption algorithms and modules used by ONTAP are compliant with the Federal Information Processing Standard (FIPS) 140-2. These two actions will satisfy the requirements of data security and passphrase protection for your cluster. References :- NetApp Encryption overview, Configure onboard key management, Enable cluster-wide FIPS-compliant mode