> > If we use nbd, how can we pass additional information to the other > > side, for example information about unallocated regions? > > > > You can either send trim commands, or just skip those regions and let the > other > side figure it out.
But we are lost if we want to transfer something else? I am currently not sure what we want to transfer, but I am sure we will find something in future. Or can we simply add a header to each write with additional information?
