Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Wed, Nov 18, 2009 at 9:12 AM, Gianluca Cecchi <gianluca.cecchi at gmail.com> wrote: > > On Wed, Nov 18, 2009 at 5:30 AM, Jiann-Ming Su <sujiannming at 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)