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Cluster expand: Controller VM disconnected from network

  • 22 January 2021
  • 2 replies
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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

Hi NareshM,

Does the error message look like any of these?

Possible Cause 1

Upstream TOR switch has configuration or status change on the port connected to the CVM
Recommendation: Ensure that the port connected to the CVM is up and in a forwarding state
Details: Log into the upstream TOR switch and check for link down, Error Disable, etc. on the port connected to the CVM.

Possible Cause 2

Virtual switch in the Hypervisor is not working correctly
Recommendation: Contact Nutanix Support
Details: Virtual switch in the Hypervisor is not working correctly

Possible Cause 3

SSH Keys are set up incorrectly
Recommendation: Contact Nutanix Support

Can you please open a Support case so that the issue can be looked into detail via a remote session?

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Userlevel 1
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Hi NareshM,

Does the error message look like any of these?

Possible Cause 1

Upstream TOR switch has configuration or status change on the port connected to the CVM
Recommendation: Ensure that the port connected to the CVM is up and in a forwarding state
Details: Log into the upstream TOR switch and check for link down, Error Disable, etc. on the port connected to the CVM.

Possible Cause 2

Virtual switch in the Hypervisor is not working correctly
Recommendation: Contact Nutanix Support
Details: Virtual switch in the Hypervisor is not working correctly

Possible Cause 3

SSH Keys are set up incorrectly
Recommendation: Contact Nutanix Support

Can you please open a Support case so that the issue can be looked into detail via a remote session?

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Hi @ShvetaD 

Support case opened with Nutanix, Thanks