Re: Incremental Backup GUI or Automation Scripts?

[John Snow]

On 9/10/20 9:58 AM, Derek Jarvis wrote:
> I read about the Incremental Backup feature here: 
> https://wiki.qemu.org/Features/IncrementalBackup
>
> Some of this seems a bit "proof of concept" that requires more 
> implementation. Is there an UI available for this, either command prompt 
> or GUI, to simplify this process?

It's a very low-level API; but we don't expect that end-users interface 
directly with it, no. The ease-of-use side of it would come from libvirt 
or other utilities.

I didn't work on the libvirt portions, but I see some evidence of it 
over at https://libvirt.org/formatcheckpoint.html and at 
https://libvirt.org/kbase/incrementalbackupinternals.html

> My use case is I want to be able to migrate a VM between different 
> servers and I want to speed this up by only sending the disk changes. 
> The idea is that each server would maintain the "last known" state of 
> the disk and would be sent the incremental changes from the other server 
> when it is taking ownership of it. For me, one server is a proxmox 
> instance, and the other "server" is actually my laptop running 
> virt-manager.
>
> Is there anything available to simplify this process?