A File System in a Clustered NAS System Performs Heartbeat

question 464

Multiple Choice

A file system in a clustered NAS system performs heartbeat synchronization between nodes. When the heartbeat is interrupted, the N8000 cluster is split into multiple small groups, resulting in data loss.  The N8000 provides a fencing function to avoid the occurrence of the split-brain issue.  Which of the following descriptions of the role of fencing correct?

• A) Monitor GAB and check for changes in cluster members
• B) Guarantee a single view of the members of the cluster
• C) In the absence of a single cluster control, to prevent multiple nodes with Volume Manager to access shared storage
• D) cluster abnormal recovery automatically master node

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