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[George Milliken]

Regards,

George P. Milliken
AvailMedia.com
406-752-6592 x1010
415-652-2105 (cell)



James Wilson wrote:
> Thanks for the reply. I haven't had this happen on its own. I was just
> testing by pulling the network cable to see if everything would failover
> and noticed it when the other server came back up. Also to manually
> resync them I just issue the command drbdadm invalidate "r0" or whatever
> your resource is. Is this the wrong way to do it?
>
> Lars Ellenberg wrote:
>   
>> On Thu, Aug 09, 2007 at 09:39:51AM +0200, Pierguido wrote:
>>
>>     
>>> James Wilson wrote:
>>>
>>>       
>>>> Hey All,
>>>>
>>>>   I am running DRBD 8.0.3 in primary/primary mode. I tested my cluster
>>>> this morning by pulling the plug on one of the DRBD servers everything
>>>> worked out fine but when the server comes back up it doesn't resync and
>>>> is in secondary state for some devices and unknown for others. How can I
>>>> have the devices sync up and then become primary/primary again? Thanks
>>>> for any advice.
>>>>
>>>>         
>>> I have the same problem...i tried some things but nothing worked out.
>>> Is there a sequence of command to do in these cases?
>>> Thanks
>>>
>>>       
>> you could configure some "auto-recovery strategies", see after-sb-#pri
>> settings in drbd.conf.
>>
>> to get them reconnected and resynchronized manually,
>> you'd have to typically
>>  chose one side to do
>>    umount
>>    drbdadm -- --discard-my-data connect XY
>>  and maybe on the other side do normal
>>    drbdadm connect XY
>>
>> we are going to make this less annoying than it is now by introducing a
>> write_quorum and IO-freeze on disconnect, then we can timeout for a
>> possible imminent reconnect (network hiccup only), and after that
>> timeout arbitrate (triggered by the cluster manager) which side may
>> continue, and which has to be fenced (or let it self-fence...).
>>
>> but for the time being, yes, I know, two-primaries is still "inconvenient"
>> when you have a flaky network.
>>
>>
>>     
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