de-duplication with encryption inside vm

[Widely0873]

Hello,
I was hoping to get some clarity about backups and encryption from inside a vm. If I encrypt a debian vm with luks on lvm, will this interfere with proxmox backup server de-duplication, pruning, etc? To clarify, the encryption in not happening in proxmox, but within the vm.
Any other problems I can expect?
Thanks

 

[aaron]

From a Proxmox VE POV this should be no problem. It just sees the data on the disk. Different backups from the same VM will have a good chance to be deduplicated on PBS backups, but you will not get any deduplication between different VMs as they hopefully have a different encryption key and the encryption is working
The resulting encrypted data on the disk will be different. Therefore the chunks stored on PBS will also be different between different VMs.