I have a small cluster we are testing to move away from Vmware. Proxmox is working great. We are using Veeam to backup the virtual machines, but is there best practices for how to keep the cluster synchronized and what I need to backing up in the actual Proxmox host servers? I recently had a problem where I lost all the conf files on a host and realized that they weren't on all the hosts in the cluster 
so I am trying to make sure I have everything I might need going forward. Thanks!
so I am trying to make sure I have everything I might need going forward. Thanks!