On 26/01/2015 21:43, Max Reitz wrote: >> If the NBD server is attached to the BDS, it should keep serving the BDS. > > The problem is that it is no longer attached to the BDS, but to the BB.
That's not necessarily a problem. :) It is the cause of the problem though. Is it possible to attach two BBs to the same BDS? Because part of the solution could be to introduce a new blockdev-serve command that takes a BDS, creates a BB and exports that BB. > I think to retain compatibility we could either just do what we always > did (although I find it wrong), or we could simply set up an eject > blocker when attaching an NBD server to a BB. What do you think? An eject blocker would also break backwards-compatibility though. What about an eject notifier? Would that concept make sense? Paolo
