First of all, Thanks for the hard work.

With QMP, I can backup dirty-bitmap - like 'blockdev-backup' incremental sync mode.
But this command should be executed at the host where the QEMU process is live.

I want to execute a backup at the other host so it does not affect running Guest.
- `blockdev-backup` preempts the host's I/O resource.

Is there any way to backup a dirty-bitmap that can be executed at the other server?

Thanks.