> >>> 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? > > Let's discuss it once we have a clearer picture of what that additional info > would > be.
OK, just discovered such case. For example it would be nice to pass the size of the devices somehow?
