NS0-157 Question #288: Real Exam Question with Answer & Explanation

The correct answer is A: A new master will be elected for the vifMgr RDB unit. When the master node of the vifMgr ring loses quorum, a new master is elected for that RDB unit, but existing LIFs on the affected node continue to serve client data normally.

ONTAP Cluster Fundamentals

Question

The vifMgr is out of quorum on the node that is the master for the vifMgr ring. Which of the following statements are true? (choose all that apply)

Options

AA new master will be elected for the vifMgr RDB unit
BEpsilon will not be available in the cluster
CClients can access data through the LIFs on this node
DA new LIF can be created for a data vserver

Explanation

When the master node of the vifMgr ring loses quorum, a new master is elected for that RDB unit, but existing LIFs on the affected node continue to serve client data normally.

Common mistakes.

B. Epsilon is a cluster-wide quorum tiebreaker vote assigned to one node and is unrelated to a single RDB ring (vifMgr) losing quorum; it remains available unless the broader cluster quorum is threatened.
D. Creating a new LIF for a data vserver requires the vifMgr ring to be in quorum to process and replicate the configuration change; since the master is out of quorum, new LIF creation operations would fail.

Concept tested. ONTAP vifMgr RDB ring quorum failover behavior

Reference. https://docs.netapp.com/us-en/ontap/system-admin/cluster-quorum-node-membership-concept.html

Topics

#vifMgr#cluster quorum#RDB ring#LIF availability

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