Removing nodes from a cluster

At times, it may be necessary to remove a node from a cluster for various reasons. A n can only be removed through the CLI as of Proxmox VE 3.4.

Getting ready

Before removing a node, be sure there are no running VMs in a node. Move any VMs to a different node by following the steps in the Migrating a virtual machine recipe, shown later on in this chapter. Log in as the root to a node not being removed through SSH or the Proxmox GUI | Shell. Power off the node that needs to be removed.

Note

Proxmox highly recommends that the removed node does not power up in the same network as it is. Removing a node from cluster is a permanent process. It will delete all cluster information from the node that is being removed.

How to do it…

Use the following steps, to remove nodes from the cluster:

1. Run the following command from a node:

   #pvecm delnode <hostname_to_be_deleted>
   

   In our example cluster, if we want to remove the node pmx3, we will run the following command...