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
_______________________________________________
drbd-user mailing list
[email protected]
http://lists.linbit.com/mailman/listinfo/drbd-user

Reply via email to