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NCA-5.15 · Question #85

An administrator needs to replace a node in a three-node cluster. The health status for the environment is good and the cluster is able to support a single node failure. Which step must be performed f

The correct answer is D. Expand the cluster with the new node. In a three-node cluster, removing a node before adding the replacement would leave only two nodes, which drops below the minimum required for Nutanix cluster quorum and redundancy (RF2 requires at least 3 nodes). The correct approach is to first expand the cluster with the new (r

Nutanix Cluster Management

Question

An administrator needs to replace a node in a three-node cluster. The health status for the environment is good and the cluster is able to support a single node failure. Which step must be performed first?

Options

  • ARemove the failed node from the cluster
  • BVerify hypervisor versions
  • CPlug in all network cables
  • DExpand the cluster with the new node

How the community answered

(24 responses)
  • A
    4% (1)
  • B
    13% (3)
  • C
    8% (2)
  • D
    75% (18)

Explanation

In a three-node cluster, removing a node before adding the replacement would leave only two nodes, which drops below the minimum required for Nutanix cluster quorum and redundancy (RF2 requires at least 3 nodes). The correct approach is to first expand the cluster with the new (replacement) node-making it temporarily a four-node cluster-and then remove the old node. This maintains fault tolerance and data redundancy throughout the entire replacement process. Verifying hypervisor versions and plugging in cables are steps that happen as part of the process, but expanding first is the critical prerequisite.

Topics

#Node Replacement#Cluster Management#Cluster Expansion#High Availability

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