How to migrate existing backups to PBS

[proximoxi2]

We currently have two debian servers with a zfs pool to which we backups our containers and vm's (via NFS). We now want to migrate to PBS. Replace one of the servers to PBS, migrate the existing backups and then replace the other server.

But how do we migrate existing backups to PBS? I have not found any documentation about this.

 

[ggoller]

Hi!
this is still on the roadmap: https://pbs.proxmox.com/wiki/index.php/Roadmap.
As a workaround you can also restore the backup and then backup the restored machine to pbs.

 

[proximoxi2]

Since it is on the roadmap since three and a half years I guess I should not expect that it gets implemented soon.
Restoring a few hundred backups does not scale very well, but I think we could extract the archives sequentially and use the proxmox backup client to backup them to pbs.

 

[fabian]

@fschauer actually implemented a tool, it just hasn't been published yet:

https://lists.proxmox.com/pipermail/pbs-devel/2023-October/006789.html / https://lists.proxmox.com/pipermail/pbs-devel/2024-January/007629.html

it might still have some rough edges, but hopefully it should be available soon for testing!