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Chapter 33. Removing the cluster configuration
Permanently remove all Pacemaker and Corosync cluster configuration from a system when a cluster is no longer needed or must be rebuilt from scratch.
Prerequisites
-
You have root access or a non-root user account with
sudoprivileges. -
The
pcscommand-line tool is installed.
Removing the cluster configuration is irreversible. After completion, the node is no longer part of any cluster and cannot be recovered without reconfiguration.
Procedure
Optional: Stop the cluster cleanly on the node.
# pcs cluster stopStopping the cluster reduces the risk of incomplete cleanup.
Remove all cluster configuration and disable cluster services.
# pcs cluster destroy
Verification
Verify that cluster services are no longer running.
# pcs statusIf the cluster is removed successfully, the command reports that no cluster is configured.
Optional: Confirm that cluster services are stopped.
# systemctl status pacemaker corosyncBoth services should be inactive or not found.