The corosync.conf configuration file stores parameters needed for a cluster operation. Any empty lines or lines starting with # in this configuration file are completely ignored. The following code is what our corosync.conf file currently looks like in our example cluster with two Proxmox nodes. The Proxmox cluster configuration file is located under /etc/pve/corosync.conf:

We are now going to dig into corosync.conf to describe the functions of the parameters. This configuration file is automatically created when a new Proxmox cluster is created. There are four segments in this file, which are as follows:

• logging {  }
• nodelist {  }
• quorum {  }
• totem {  }