[DRBD-user] primary/secondary problem

paddy paddy at panici.net
Thu Jun 15 14:45:13 CEST 2006


oh dear! quoting myself ...

On Tue, Jun 13, 2006 at 12:27:30AM +0100, paddy wrote:
> On Mon, Jun 12, 2006 at 09:12:41PM +0200, Gernot W. Schmied wrote:
<snip> 
> > By the way, when both cluster participants are in secondary mode, can
> > one absolutely rely on the fact that they will never attempt
> > synchronization in any direction?
> 
> It is my understanding that is what 'both in secondary mode' entails. You 
> would need to satisfy yourself as to how far you can trust any particular
> piece of software for your purposes.  You should also be aware of systems
> like heartbeat that might be configured to tell drbd to change state
> (thereby possibly triggering a synchronisation).

On Tue, Jun 13, 2006 at 03:50:27PM +0200, Matthias Weigel wrote:
> 
> is it possible, that there is some confusion in this thread about what 
> primary actually means?

D'oh!  yes, you are right.  Thanks for pointing that out, and my 
apologies to you Gernot for my incorrect answer.

IIUC, two nodes in secondary mode can nevertheless be synchronising ?

Of course, once they're synch'ed, there won't be any more to do :-)

Not that they're gonna be doing any of that if they never connect ;-)

Regards,
Paddy
-- 
Perl 6 will give you the big knob. -- Larry Wall



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