Redundancy Factor 3 (RF3) requires a minimum of five nodes in the cluster to ensure that data can be distributed across enough nodes to tolerate the failure of two nodes. If the cluster has fewer than five nodes, RF3 cannot be enabled.
A. Check that the cluster has been properly licensed:Licensing is not directly related to enabling RF3.
B. Check that the cluster has five or more nodes:Correct, as RF3 requires at least five nodes.
C. Check hardware availability of the nodes:While hardware health is important, it does not determine RF3 eligibility.
D. Check AOS version and upgrade, if needed:RF3 requirements are not specific to an AOS version.
References:
Nutanix Best Practices Guide for RF2 and RF3.
Nutanix Support KB Article on RF Configuration Requirements.
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