[DRBD-user] examples of dual primary DRBD

Bart Coninckx bart.coninckx at telenet.be
Sat Oct 8 08:44:59 CEST 2011


On 10/08/11 08:31, Bart Coninckx wrote:
> On 10/08/11 08:28, Bart Coninckx wrote:
>> On 10/08/11 00:25, Lars Ellenberg wrote:
>>> On Fri, Oct 07, 2011 at 10:21:08PM +0200, Bart Coninckx wrote:
>>>> On 10/06/11 22:03, Florian Haas wrote:
>>>>> On 2011-10-06 21:43, Bart Coninckx wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> would you mind sending me examples of your crm config for a dual
>>>>>> primary
>>>>>> DRBD resource?
>>>>>>
>>>>>> I used the one on
>>>>>>
>>>>>> http://www.drbd.org/users-guide/s-ocfs2-pacemaker.html
>>>>>>
>>>>>> and on
>>>>>>
>>>>>> http://www.clusterlabs.org/wiki/Dual_Primary_DRBD_%2B_OCFS2
>>>>>>
>>>>>> and they both result into split brain, except for when I start drbd
>>>>>> manually first.
>>>>>
>>>>> They clearly should not. Rather than soliciting other people's
>>>>> configurations and then try to adapt yours based on that, why don't
>>>>> you
>>>>> upload _your_ CIB (not just a "crm configure dump", but a full
>>>>> "cibadmin
>>>>> -Q") and your DRBD configuration to your pastebin/pastie/fpaste and
>>>>> let
>>>>> people tell you where your problem is?
>>>>
>>>> OK, I posted the drbd.conf on http://pastebin.com/SQe9YxhY
>>>>
>>>> cibadmin -Q is on http://pastebin.com/gTZqsACq
>>>>
>>>> The split brain logging is on http://pastebin.com/7unKKkdi .
>>>
>>> I somehow think you added some "--force" or "--overwrite-data-of-peer"
>>> to some drbdadm/drbdsetup primary invocation?
>>
>> I sure did (--overwrite-data-of-peer). Does this leave destructive
>> traces?
>>
>> B.
>
> By this I mean: I did use --overwrite-data-of-peer while setting up the
> resource, but I don't think I ever used it together with the "primary"
> option.

Forget that, I did. I probably mixed up some things. How do I get back 
from this? Create new meta data?

cheers,

B.



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