CVM unreachable after node restart. The disappearing vlan.
This has happened to me several times. After completely restarting a node, I cannot regain control of the CVM. The problem occurs when you set the vlan with the « cvm_change_vlan VLAN » script. The solution is as follows, modify the cvm configuration from the hypervisor.
Retrieve the following information:
Alias -> cat /etc/nutanix/config/cvm_config.json (Get the first uuid)
Mac address -> ifconfig eth0 (from CVM, coresponding to the ether filed)
Source-Name -> Depend of your bridge coresponding to your CVM stream
Type -> bridge
Vlan -> id of the vlan
Before to run the next command, you must to put your node in maintenance mode if you are in production.
update-cvm-config –memory-mib nochange –cpu-topology nochange –cpuset nochange –network-interfaces {update}{alias} {mac}{source-name}{type}{vlan}
After you will be able to restart you node.