NS0-157 · Question #77
A NetApp cluster is connected to two network switches for resiliency. One of the network switches loses power. Most LIFs on the cluster automatically recover from the switch failure to and are…
The correct answer is B. The LIFs failover-group configuration. D. The broadcast domain's member ports. When a CIFS LIF fails to migrate after a switch failure, the LIF failover-group configuration and the ports assigned to the broadcast domain determine whether valid failover targets exist on the surviving switch.
Question
A NetApp cluster is connected to two network switches for resiliency. One of the network switches loses power. Most LIFs on the cluster automatically recover from the switch failure to and are reachable through the network. One LIF used for CIFS access is not reachable through the network until power is restored to the failed switch. Which two areas should be investigated to determine the problem? (Choose two.)
Options
- AThe protocols allowed on the LIFs.
- BThe LIFs failover-group configuration.
- CThe LIFs home port.
- DThe broadcast domain's member ports.
How the community answered
(32 responses)- A19% (6)
- B47% (15)
- C34% (11)
Why each option
When a CIFS LIF fails to migrate after a switch failure, the LIF failover-group configuration and the ports assigned to the broadcast domain determine whether valid failover targets exist on the surviving switch.
Protocols allowed on a LIF govern which data protocols it serves, not its ability to migrate to another port during a hardware failure.
The failover-group explicitly defines which ports a LIF is allowed to migrate to; if the group only contains ports connected to the failed switch, the LIF has no valid target and remains unreachable until the switch is restored.
A LIF's home port is where it resides under normal conditions, but it is the failover-group - not the home port - that controls which ports are candidates during a failure event.
Broadcast domain port membership determines the reachable Layer 2 network for a LIF; if only ports from one switch are members, there are no alternative ports on the surviving switch available for failover, which must be investigated and corrected.
Concept tested: LIF failover-group and broadcast domain membership for resiliency
Source: https://docs.netapp.com/us-en/ontap/networking/configure_failover_groups_and_policies_for_lifs_overview.html
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