[pve-devel] [pve-dev][storage] clone vs import/export

Andrei Perapiolkin andrei.perepiolkin at open-e.com
Wed Sep 15 18:30:29 CEST 2021


Hi Proxmox Dev's!

I am developing plugin for the data storage system and want to 
avoid/minimize copying data on the proxmox side.

And it looks like Im missing something in understanding or copy/clone 
features. So can you please help me?


I was looking on cloning of virtual machines and volumes in proxmox and 
it seems like it is done through plain copy on the side of proxmox 
server. At least that is what happens when I press clone button in UI 
interface.

Im talking about: /usr/share/perl5/PVE/Storage system.

I do not think that this is the most optimal behavior. And I want to 
know how to make proxmox delegate data copying to the storage system.

In other words I want to make proxmox call for "clone_image" method 
instead of "volume_import and volume_export" when volumes being 
cloned/copied to the very same data storage.


Is it possible to do so with configuration and plugin code alone? Or it 
require modification in proxmox code itself?


Thanks for your attention,

Andrei




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