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

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

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.

When adding new nodes to an existing ONTAP cluster, proper cabling to the cluster interconnect switches is mandatory. The cluster interconnect network is a dedicated, private network used exclusively for internal cluster communication such as configuration synchronization, data movement, and quorum maintenance.

In AFF A400 systems, the cluster interconnect ports are fixed high-speed Ethernet ports that are clearly identified and reserved for cluster connectivity. These ports are typically 25GbE or 40GbE depending on configuration and are grouped together physically on the controller chassis.

Referring to the exhibit, the ports labeled with number 2 correspond to the cluster interconnect ports. These are the only ports that must be connected to the cluster interconnect switches when adding nodes to an existing cluster. ONTAP requires that each node have redundant connections to both cluster switches to maintain high availability and cluster quorum.

Ports labeled as other numbers in the exhibit represent different functions, such as management ports, data ports, or shelf connectivity ports, none of which are valid for cluster interconnect cabling.

NetApp installation procedures emphasize that incorrectly cabling non-cluster ports to cluster switches can prevent nodes from joining the cluster or cause cluster instability. Therefore, identifying and using the correct cluster interconnect ports is a critical installation step.

As shown in the exhibit, number 2 clearly identifies the correct ports used to cable the new AFF A400 nodes into the existing cluster interconnect infrastructure.

The exhibit represents aMetroCluster IPconfiguration, which uses Ethernet switches to provide redundant connectivity between sites. In this architecture, the Ethernet switches are responsible for transportingNVRAM replication traffic using iWARP (RDMA over TCP/IP). This enables synchronous replication of write logs between HA partners across sites.

Additionally, the switches supportSyncMirror replication, which maintains mirrored aggregates across sites to provide continuous data availability in the event of a site failure.

SnapMirror Synchronous and cluster management traffic do not use these switches directly in this configuration. Therefore, the correct answers areC and D.

Alternate Control Path (ACP) provides anout-of-band management pathto disk shelves, allowing ONTAP to monitor and reset SAS expanders nondisruptively. It does not carry data traffic and does not assign shelf IDs.

Explanation (250–350 words):

Cluster peering authentication is a foundational ONTAP SAN concept that ensures secure trust between clusters before data replication can occur. Authentication is performed during the peering process and establishes mutual trust.

ONTAP supportspassphrase-based authentication, where a passphrase is either user-defined orautomatically generated by ONTAP. This passphrase is exchanged between clusters to authenticate the peer relationship. LDAP is not used for cluster peering authentication.

Administrators can verify the authentication and status of cluster peering relationships using thecluster peer showcommand, which displays peer state, availability, and authentication status.

Peering encryption can be enabled independently and does not require authentication to be completed first, making option C incorrect.

Therefore, the correct answers areA and D.

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.

User data in ONTAP is written tovolumes owned by Storage Virtual Machines (SVMs). Root aggregates and root volumes are reserved for system metadata and ONTAP operations. Mailbox disks store HA metadata only.

Therefore, user data is written to anSVM volume.

AFF A250 systems use25GbE ports with breakout cablingfor cluster and HA traffic. When adding these nodes to switches running a standard Cluster-HA RCF, the switches must be updated to aCluster-HA-Breakout RCFto support breakout ports. The nodes must then be cabled to the breakout ports. Therefore,B and Dare correct.