Cluster expand: Controller VM disconnected from network

Question

While expanding cluster out of 4 nodes able to add one and remaining three nodes failed with error “Controller VM disconnected from network”

Description:

Controller VM is not reachable from Controller VM in the last 3 attempts.

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Best answer by ShvetaD 23 January 2021, 08:57

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ShvetaD · Accepted Answer

Hi NareshM,Does the error message look like any of these?Possible Cause 1Upstream TOR switch has configuration or status change on the port connected to the CVMRecommendation: Ensure that the port connected to the CVM is up and in a forwarding stateDetails: Log into the upstream TOR switch and check for link down, Error Disable, etc. on the port connected to the CVM.Possible Cause 2Virtual switch in the Hypervisor is not working correctlyRecommendation: Contact Nutanix SupportDetails: Virtual switch in the Hypervisor is not working correctlyPossible Cause 3SSH Keys are set up incorrectlyRecommendation: Contact Nutanix SupportCan you please open a Support case so that the issue can be looked into detail via a remote session?

NareshM · Answer

Hi @ShvetaDSupport case opened with Nutanix, Thanks

Possible Cause 1

Possible Cause 2

Possible Cause 3

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