How to backup for proxmox itself

[bravo0916]

Hello team,

I would like to take full backup for entire proxmox machine. The Proxmox is running on physical hardware. If the system is crashed or damaged, then I need to restore from backup data. Or is there something like configuration files? I mean, when the system get critical issue, then install Proxmox from scratch and restore from configuration files. Finally, the system is supposed to be restored completely.

Please let me know.

Regards,

 

[esi_y]

I would like to take full backup for entire proxmox machine. The Proxmox is running on physical hardware. If the system is crashed or damaged, then I need to restore from backup data.

I would simply suggest to reinstall and join the same cluster. There's nothing in my view that is valuable other than the configurations. There are several threads discussing complicated backup strategies, but it should be like for any Linux (copy partitions out, might need to reinstall bootloader - this is also filesystem dependent). I would rather automate my deployment (e.g. Ansible) and backup the tiny configurations.

https://forum.proxmox.com/threads/how-to-backup-proxmox-configuration-files.67789/

https://forum.proxmox.com/threads/official-way-to-backup-proxmox-ve-itself.126469/

Or is there something like configuration files? I mean, when the system get critical issue, then install Proxmox from scratch and restore from configuration files.

I would keep backups of /etc/pve:

https://forum.proxmox.com/threads/backup-cluster-config-pmxcfs-etc-pve.154569

 

[bravo0916]

Hi esi_y,

Thank you so much for your quick response. Currently, the Proxmox is single structure. You have suggested me to setup one more Proxmox as cluster members right? Sorry, maybe I should take a look at the link that you provided me, but let me ask you something please.

1. For cluster environment, I just need to setup Proxmox and rejoin the cluster. After that, all data should be replicated from the other member.
Is this correct?

2. The cluste members (machines) should have the same spec? For instance, the same CPU model, the same amount of RAM size and vendor, the same model of motherboard vendor, etc.

Thank you!!

Regards,