Add Proxmox Backup Server to Proxmox VE. Older versions

[NeytechAR]

Hi, I stumbled with this scenario:
I've a PVE which hard drives and other components are failing (Dell warranty will take care of this so no problem). So I thought about getting myself a Proxmox Backup Server so I can keep safe all those VMs. The thing is that server is running PVE 6.0-4 and I see no options to add this new Proxmox Backup Server:

I'm reluctant to upgrade PVE to newest version due to failing disks. Its a risk I would prefer not to take. How can I set this up?
Thank you.

 

[Dunuin]

PBS1.X integraton was added with PVE 6.3. PBS2.X integraton with PVE 7.0.
So I would suggest backing up using Vzdump archives, then setup a PBS2.3 and PVE7.3, restore backups to PVE 7.3, backup all guests to PBS and then destroy those vzdump backups after verifying that everything works as expected.