Backup Promxox cluster nodes

[KnowVation]

Hi,

what would be the easiest way to backup and restore proxmox cluster nodes? If possible dayly, while the nodes are running.
Currently we are running 6 nodes in a cluster. Proxmox is installed on an internal SSD of each node. Ceph is also installed and each node also has 6 ceph osds.

I only want to Backup the node with cluster and ceph configuration, just whats needed to get the node up and running with working cluster and ceph settings, not the OSDs as they shouldnt be afected from bootdisk fail.

See example


Is there a feature planned for proxmox Backupserver ? Any suggestions?

Thanks!

 

[Falk R.]

You don't really need a backup. If an OS SSD fails, you reinstall and only need to import the network configuration. The cluster data is distributed across all nodes and is also copied back to the node during join.
If backup, then the network configuration and possibly from a node the folder /etc/pve (the content of the folder is identical on all nodes).

 

[KnowVation]

Thanks for the reply. So i just need to reinstall the node with the same hostname, rejoin the cluster, reinstall ceph and copy the network configuration on to the reinstalled node. Is this process documented somewhere? No problems to be expected with the remaining OSDs?