On Wed, Nov 18, 2009 at 9:12 AM, Gianluca Cecchi <gianluca.cec...@gmail.com> wrote: > > On Wed, Nov 18, 2009 at 5:30 AM, Jiann-Ming Su <sujiannm...@gmail.com> wrote: >> >> Can you give a brief explanation of why that is the case? >> >> >> Is the problem the dual path? What if a single path was used in some >> stacked configuration where a drbd is used as a backing device for >> another drbd share? >> >> >> -- >> Jiann-Ming Su > > It is wrong from a conceptual point of view, because as Lars already > explained, when you write on md0 of A, you are only writing on half md0 of B > (left side) and half md0 of C (right side). > So the other two md0 devices are not in sync with the original md0.... > HIH, > Gianluca
Actually, based on your first post where you gave: Noce A: md0 (drbd0, drbd1) Node B: md0 (drbd0, drbd2) Node C: md0 (drbd1, drbd2) also for C you are hitting left side, so correct explanation would be: when you write on md0 of A, you are only writing on half md0 of B (left side) and half md0 of C (left side) _______________________________________________ drbd-user mailing list drbd-user@lists.linbit.com http://lists.linbit.com/mailman/listinfo/drbd-user
