Backup PVE itself

[HPmoss]

I've got Proxmox VE installed on a single SSD. It's not a mirror.
How do I backup the PVE itself (not talking about the VMs).

In case of total loss of SSD, how do I restore back?

 

[Dunuin]

There is no easy integrated way to do that yet. But there are multiple options:
1.) block level backup of the whole SSD (for example using clonezilla)
2.) backup of your important files (for example tar gzip rsync your files to a NAS or external disk...some folders you might want to backup "/etc", "/root", "/home", "/var/lib/vz")
3.) you stop the pvecluster service and backup the config DB (this contains most of the PVE specific config files. See here: https://pve.proxmox.com/wiki/Proxmox_Cluster_File_System_(pmxcfs)#_recovery)
4.) use some 3rd-party tools like Veeam, UrBackup, Bacula, ...

 

[HPmoss]

My backup of choice is Borg backup.