> > Is there already a plan to support the differential or incremental > > backups in > this Live backup feature? > > No, it has been mentioned but no design or patches have been proposed. > > It seems like a persistent dirty bitmap would need to be implemented. > Today QEMU has code for dirty bitmaps but they are in-memory and not > persistent.
Another possibility is to use some kind of content addressable storage. That way we can have full backups with space consumption of incremental backups.
