[SOLVED] Backing up RAW Backed VMs

[Proxygen]

I have a PBS instance as a backup destination in Proxmox VE.

When I use Proxmox own backup targeting local storage, a 12GB VM uses 2GB.

When I target the remote PBS instance, the same 12GB VM uses 12GB.

The VM is .raw backed

 

[dcsapak]

the size displayed in the pbs gui for a backup is the theoretical maximum size the backup can use. it does not account for deduplication, compression, etc.
look in the backup task log to see how much data really was uploaded (also that is an upper limit, because some of the uploaded chunks might have been on the server already)