The cluster down command concurrently removes all cluster nodes from the cluster. This command has the same effect as executing the cluster leave command on every server in the cluster. You are prompted to confirm the cluster down. For example, you might need to take the cluster down if an SBD partition fails, and you need to delete and recreate an SBD partition.
Log in as the root user on any node in the cluster, then enter the following at a command prompt:
cluster down
When you are prompted to confirm the cluster down command, specify Yes, then press Enter.