Chris Robertson wrote:
> Les Mikesell wrote:
>> Chris Robertson wrote:
>>   
>>> Read it again.  :o)  Both the external XFS journal (logdev=/dev/drbd1) 
>>> AND the data partition (/dev/drbd0) are DRBD mirrored.  It would be 
>>> silly to have only one or the other saved in a DR scenario.
>>>     
>> Have you investigated/tested what happens if one end or the other 
>> crashes or they lose connectivity for some period of time?   I think 
>> drbd has some tricks to deal with that but I don't know how well they 
>> work in practice.
>>   
> 
> Well, I ran the BackupPC server without a partner for more than 2 weeks 
> without a hitch...
> 
> Tell you what.  Let me just run downstairs and unplug the network cable 
> from the mirror server.  :o)
> 
> I'll send another note in a couple hours with an account of what 
> happens, then I'll go re-plug it in and report further.


Thanks - I'm interested in the theory as well as the practice on this 
but didn't really expect it to work very well so I haven't followed the 
software for a while.  Does it have some kind of diagnostics to see if 
the partners are fully in sync?

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com



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