6.6. Replacing a failed bare-metal control plane node without BMC credentials
If a control plane node on your bare-metal cluster has failed and cannot be recovered, but you installed your cluster without providing baseboard management controller (BMC) credentials, you must take extra steps in order to replace the failed node with a new one.
6.6.1. Prerequisites 링크 복사링크가 클립보드에 복사되었습니다!
- You have identified the unhealthy bare metal etcd member.
- You have verified that either the machine is not running or the node is not ready.
-
You have access to the cluster as a user with the
cluster-adminrole. - You have taken an etcd backup in case you encounter any issues.
-
You have downloaded and installed the
coreos-installerCLI. Your cluster does not have a control plane
machineset. You can check formachinesetsby running the following command:$ oc get machinesets,controlplanemachinesets -n openshift-machine-api중요There should be only one or more
machinesetsfor the workers. Ifcontrolplanemachinesetsexists for the control plane, do not use this procedure.