A security administrator is reviewing high-availability cluster resilience and failover mechanisms for mission-critical enterprise services. Match each clustering component or condition on the left with its corresponding operational definition or control mechanism on the right.
- Split-brain conditionA state where communication loss causes isolated cluster partitions to simultaneously assume the active role, risking data corruption
- QuorumThe minimum number of voting nodes required to establish operational authority and prevent conflicting cluster actions
- STONITH (Fencing)An automated isolation mechanism that forcibly powers down or disconnects an unresponsive node to protect shared storage integrity
- Heartbeat linkA dedicated network path utilized by cluster nodes to continuously monitor peer health status and state signals
Answer
Split-brain condition matches the state where isolated partitions simultaneously claim active role; Quorum matches the minimum voting node requirement for authority; STONITH matches the automated node power-down/isolation mechanism; Heartbeat link matches the dedicated keep-alive telemetry path.
Each clustering concept represents a specific mechanism essential for maintaining cluster integrity and high availability: the heartbeat link continuously monitors peer health; quorum requires a majority vote before changing active status; split-brain occurs when lost communication causes dual active nodes; and STONITH forcibly isolates or powers down problematic nodes to prevent split-brain write corruption.
Step-by-Step Solution
Key Concept
High-Availability Clustering Controls and Partition Fault Tolerance Mechanisms
Estimated Time:1m 30s