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.
Solved
Cluster expand: Controller VM disconnected from network
Best answer by ShvetaD
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?
This topic has been closed for replies.
+2- Nutanix Employee
- 18 replies
- Answer
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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