Backup VMs in Cluster to local SSD-Storage in one node

[sigmarb]

Dear folks,

i would like to keep offline, air-gapped backups of all of our VMs in a 3-node cluster. We are aware of PBS and already using it. However i would like to use physical local media.

My first idea was to mount & rotate some big SSDs on a node, then export the share via NFS to others. Unfortunately that does not align very well with the different backup jobs and times and mounting/unmounting is a pain in the ass. Furthermore, if the NFS-shares get stall, the proxmox nodes are not happy about that.

Do you see a better approach for this? We would like to only rotate the SSD-drives on one specific node, as we do not have multiple for each cluster node.

Any help is greatly appreciated

Thanks

 

[sterzy]

However i would like to use physical local media.

I am not sure why this can't be incorporated into a PBS setup, do you have a specific reason why you can't use a local PBS for that? Either a machine or even a VM could work. You could use a removable datastore, ifyou need to be able to detach the media sometimes [1].

[1]: https://pbs.proxmox.com/docs/storage.html#removable-datastores

 

[sigmarb]

We already have a local PBS. However we would like to have full-backups in a single file that can be restored easily. We like the PBS approach and use it heavily, but for desaster-recovery, a single file without and dependencies is preferred.