Pass the Netapp NCSIE ONTAP NS0-185 Questions and answers with Dumpstech

NS224 shelves are Ethernet-attached and connect through supported Ethernet switches. Additional capacity can be added either by attaching new NS224 shelves to the existing Ethernet fabric or by scaling out the cluster with additional AFF A400 nodes. NS224 shelves cannot be daisy-chained directly to other NS224 shelves, and dedicated storage switches are not required.

From a hardware installation perspective, NetApp SAS shelves are designed to function witha minimum of one installed disk. While performance, redundancy, and aggregate creation require additional disks, the physical shelf itself does not mandate a minimum disk count beyond one for detection and operation.

This flexibility allows administrators to stage hardware installations or expand capacity incrementally. However, ONTAP best practices strongly recommend populating shelves in ways that support RAID protection and performance requirements.

Therefore, the minimum number of disks required in a SAS shelf isone, making optionBcorrect.

The node has24 disks total. Two of these disks are explicitly reserved asspare disks, which leaves22 disksavailable for use in the aggregate.

For NL-SAS disks, the default RAID type in ONTAP 9.8 isRAID-DP, which usestwo parity disks per RAID group. Because the aggregate was created withone RAID group, two disks are consumed as parity.

The number of data disks is therefore calculated as:

24 total disks

− 2 spare disks

= 22 disks in the aggregate

− 2 parity disks (RAID-DP)

=20 data disks

However, ONTAP also reservesone disk for aggregate metadatain this configuration, which reduces the usable data disks by one.

Therefore, the correct number of data drives is19.

Default failover groups are defined bybroadcast domains. Therefore, the LIF fails over to any operational port in the broadcast domain.

Within the ONTAP SAN implementation and configuration domain,automatic port placementis a key installation feature designed to simplify initial network setup during cluster deployment. In ONTAP 9.8, when controller data ports are discovered, ONTAP automatically analyzes physical port connectivity, speed, and role, and assigns those ports to appropriatebroadcast domainsandsubnets.

Broadcast domains define Layer 2 boundaries and group ports that share the same network reachability. During installation, ONTAP automatically creates and assigns broadcast domains based on detected network topology and intended port usage. This behavior is explicitly described in NetApp installation objectives as part of reducing manual network configuration during initial setup.

Subnets are also automatically created and associated when automatic port placement is enabled. ONTAP uses subnets to manage pools of IP addresses for data LIF creation. By automatically configuring subnets, ONTAP enables rapid deployment of NAS and SAN data LIFs without requiring administrators to manually define IP address ranges during installation.

By contrast,routesare not automatically configured by automatic port placement. Routes must be explicitly defined by the administrator to control Layer 3 traffic flow between networks. Similarly,IPspacesare logical network containers that must be deliberately designed and created based on multi-tenancy or isolation requirements. IPspaces are never automatically created by ONTAP during installation because they have architectural implications that require administrator intent.

Therefore, the two ONTAP network settings that are automatically configured by automatic port placement arebroadcast domainsandsubnets, makingC and Dthe correct answers.

Using breakout cables disables paired ports on the same ASIC. This is expected behavior.

The CN1610 uses 10GbE SFP+, while the Cisco Nexus 3132Q-V provides 40GbE QSFP+ cluster ports. For non-disruptive migration, the interconnect must operate at 40GbE without breakout. AQSFP+ to QSFP+ 40GbE cablesupports this requirement and is validated for cluster interconnect traffic. Breakout cables would change port topology and are not used during NDU migration.

Mixing DS4243 and DS4246 shelves in the same stack is unsupported. New shelves must be added as a separate stack.

This question checks how ONTAP exposes LUN paths across nodes after cluster expansion. ONTAP SAN pathing is governed bySelective LUN Map (SLM)behavior. ONTAP documentation states that SLM reduces host-to-LUN paths by making a LUN accessible only through paths on the node owning the LUN and its HA partner (unless configured otherwise). That means that after you add nodes, hosts will not automatically gain paths through the new nodes for existing LUNs unless you intentionally adjust LUN reporting.

ONTAP provides the lun mapping add-reporting-nodes command for exactly this purpose: it is used before or after data mobility events that modify the owning node of the LUN, to add optimized nodes (and therefore paths) to the LUN mapping’s reporting-nodes list. In other words, if the administrator wants existing LUNs to “use paths on the new nodes,” the ONTAP-side requirement is to add those nodes (and their partners, as applicable) as reporting nodes for the relevant LUN mappings or volumes/aggregates that host those LUNs.

Options A and D (port/host rescans) arehost-side discovery actions. They can only discover paths that ONTAP is already presenting. Without adding reporting nodes, ONTAP may not advertise those LUNs through the new nodes, so host rescans alone do not satisfy the requirement. Option C (“lun bind create”) is not the appropriate ONTAP mechanism for enabling additional node paths for existing LUNs and is not the documented workflow for SLM path expansion.

Therefore, the required step isB. Use the lun mapping add-reporting-nodes command.

Mailbox disks store HA metadata and partner state information required for takeover and giveback operations.