Thanks for the response. I had already solved this issue using bdsync,
but I did hear another solution using qemu tools. I was advised that I
could also use a base + delta image. I would just need to occasionally
merge the delta image into the base image on both computers to keep the
size of the delta file down.
On 02/10/2020 21:36, John Snow wrote:
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?
