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NS0-157 · Question #152

Which two LIFs are able to failover or migrate to other nodes in the cluster? (Choose two.)

The correct answer is B. data LIF of protocol CIFS E. data LIF of protocol NFS. This question tests which ONTAP LIF types support cross-node failover and migration, distinguishing NAS protocol LIFs from SAN and infrastructure LIFs.

Network Configuration and Data Access

Question

Which two LIFs are able to failover or migrate to other nodes in the cluster? (Choose two.)

Options

  • Acluster LIF
  • Bdata LIF of protocol CIFS
  • Cdata LIF of protocol FCoE
  • Ddata LIF of protocol iSCSI
  • Edata LIF of protocol NFS
  • Fintercluster LIF
  • Gnode management LIF

How the community answered

(41 responses)
  • B
    90% (37)
  • C
    2% (1)
  • D
    5% (2)
  • F
    2% (1)

Why each option

This question tests which ONTAP LIF types support cross-node failover and migration, distinguishing NAS protocol LIFs from SAN and infrastructure LIFs.

Acluster LIF

Cluster LIFs are dedicated to intra-cluster heartbeat and data replication traffic on the private cluster network and are never migrated or failed over - they must remain on their assigned cluster ports.

Bdata LIF of protocol CIFSCorrect

CIFS (SMB) is a NAS protocol where the LIF is identified by its IP address, which can be hosted on any node in the cluster, allowing CIFS data LIFs to fail over and migrate between nodes while clients reconnect transparently.

Cdata LIF of protocol FCoE

FCoE data LIFs are bound to specific Converged Network Adapter (CNA) ports and are part of the FC fabric zoning, making cross-node migration impossible - FCoE relies on host-side multipathing for redundancy.

Ddata LIF of protocol iSCSI

iSCSI data LIFs do not support cross-node migration because iSCSI sessions are stateful and tied to a specific target IP; redundancy for iSCSI is achieved through host-side MPIO across multiple LIFs, not LIF migration.

Edata LIF of protocol NFSCorrect

NFS is a stateless NAS protocol where clients mount by IP address, enabling NFS data LIFs to migrate to any node in the cluster - the LIF IP moves with it, and NFS clients remount or reconnect to the same address on the new node.

Fintercluster LIF

Intercluster LIFs are dedicated to SnapMirror replication and cluster peering traffic between separate clusters and do not support intra-cluster failover or migration to other nodes.

Gnode management LIF

Node management LIFs are scoped to their specific node for out-of-band administrative access and can only fail over between ports on the same node - they cannot migrate to a different node in the cluster.

Concept tested: ONTAP LIF cross-node failover and migration by protocol type

Source: https://docs.netapp.com/us-en/ontap/networking/lif_roles95.html

Topics

#LIF migration#LIF failover#FCoE#iSCSI

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