NS0-157 · Question #209
To maintain a cluster quorum, Epsilon functions as a ________.?
The correct answer is D. tie-breaker. Epsilon is a special fractional vote assigned to one node in a NetApp ONTAP cluster to break ties and maintain quorum when the cluster has an even number of surviving nodes.
Question
To maintain a cluster quorum, Epsilon functions as a ________.?
Options
- Aduplicated management database
- Bmaster node
- Csecondary node
- Dtie-breaker
How the community answered
(38 responses)- A3% (1)
- C5% (2)
- D92% (35)
Why each option
Epsilon is a special fractional vote assigned to one node in a NetApp ONTAP cluster to break ties and maintain quorum when the cluster has an even number of surviving nodes.
Epsilon is not a duplicated management database - it is a special voting weight, not a data replication mechanism.
Epsilon does not make a node a master node - ONTAP cluster management is distributed and epsilon only affects quorum voting, not management authority.
Epsilon is not a secondary node designation - it is a fractional vote attribute that can be assigned to any node regardless of its role.
Epsilon carries an extra fractional vote that resolves split-vote scenarios, allowing the node holding epsilon to tip the balance and establish quorum. Without a tie-breaker, a cluster with an even number of nodes that splits evenly could not determine which partition should remain operational. Only one node holds epsilon at a time, and it can be moved manually if needed.
Concept tested: ONTAP cluster quorum epsilon tie-breaker role
Source: https://docs.netapp.com/us-en/ontap/system-admin/cluster-quorum-epsilon-concept.html
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