Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi: I am providing a HA solution base on hb+drbd8. And I have a question how hb+drbd prevent data corruption when the following events happen. Suppose there are two nodes A, B in the cluster. 1. A is primary and B is slavery. The state transforming like this: A(running) B(running)---->A(running) B(hangup)---->A(hangup)B(hangup)--->A(hangup)B(start) When B starts, How can it know that the data will be corrupt and do not start as primary DRBD. 2. A is primary and B is slavery. The drbd net is broken. Before B know this( the drbd state switch to Inconsistent), A write some data to drbd disk and then hangup. Then how can B know that the data will be corrupt and do not start as primary DRBD. Best Regards Mia Lueng