2 PBSs pointing the same shared folder

[nason]

Hi,
Is it possible to have 2 Proxmox Backup Servers on 2 different machines pointing the same shared folder as Datastore?
I have 2 servers, on the first I have PBS as VM and make incremental backups of VM to shared folder. In case of first server failure I want to have option to restore the VM on another server. So I want to install another PBS on another server, point the same shared folder and restore VM fast on the second server
Is PBS going to allow this?

 

[_gabriel]

yes

 

[VictorSTS]

on the first I have PBS as VM

Another approach is to make backups of the PBS VM as vzdump to some NAS/USB drive and when the first server breaks, restore a backup of your PBS VM in the second server. As the datastore is on a shared folder, PBS VM backup itself should be small. No need to maintain two servers or risking that tasks might be run on both at once or any other edge case.

 

[Chris]

Hi,
Is it possible to have 2 Proxmox Backup Servers on 2 different machines pointing the same shared folder as Datastore?
I have 2 servers, on the first I have PBS as VM and make incremental backups of VM to shared folder. In case of first server failure I want to have option to restore the VM on another server. So I want to install another PBS on another server, point the same shared folder and restore VM fast on the second server
Is PBS going to allow this?

Hi,
this is not a supported setup. There are locks in action for the PBS giving some exclusive access guarantees, which you would circumvent by using the network share with concurrent access. It might seemingly work, but in the long run you will very likely run into issues.

I suggest you go either the VMA backup route via vzdump as suggested by @VictorSTS or do setup an independent PBS instance with independent datastore (best on a independent storage for fault tolerance) and perform regular sync jobs to that instance via https://pbs.proxmox.com/docs/managing-remotes.html