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25 lines
1.1 KiB
Plaintext
25 lines
1.1 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * nodes/nodes/nodes-nodes-replace-control-plane.adoc
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:_mod-docs-content-type: REFERENCE
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[id="prerequisites_{context}"]
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= Prerequisites
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* You have identified the unhealthy bare metal etcd member.
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* You have verified that either the machine is not running or the node is not ready.
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* You have access to the cluster as a user with the `cluster-admin` role.
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* You have taken an xref:../../backup_and_restore/control_plane_backup_and_restore/backing-up-etcd.adoc#backup-etcd[etcd backup] in case you encounter any issues.
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* You have downloaded and installed the link:https://console.redhat.com/openshift/downloads#tool-coreos-installer[`coreos-installer` CLI].
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* Your cluster does not have a control plane `machineset`. You can check for `machinesets` by running the following command:
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+
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[source,terminal]
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----
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$ oc get machinesets,controlplanemachinesets -n openshift-machine-api
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----
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+
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[IMPORTANT]
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====
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There should be only one or more `machinesets` for the workers.
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If `controlplanemachinesets` exists for the control plane, do not use this procedure.
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==== |