dejanmm at fastmail
Aug 26, 2009, 8:50 AM
Post #2 of 2
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Hi,
On Wed, Aug 26, 2009 at 04:02:21PM +0800, Li James wrote:
> Hi:
> I am providing a HA solution base on hb+drbd7. 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 hangup. Then how can B know that the data will be corrupt and do
> not start as primary DRBD.
Perhaps better to try some drbd forum.
Thanks,
Dejan
> Best Regards
> Mia Lueng
> _______________________________________________
> Linux-HA mailing list
> Linux-HA [at] lists
> http://lists.linux-ha.org/mailman/listinfo/linux-ha
> See also: http://linux-ha.org/ReportingProblems
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