[Linux-HA] pingd, quorum, split-brain... should I give up?

maloja01 at arcor.de maloja01 at arcor.de
Tue Oct 23 07:03:23 MDT 2007


Riccardo Perni schrieb:
> 
> 
> Andrew Beekhof <beekhof at gmail.com> ha scritto:
> 
>> On 10/22/07, Riccardo Perni <riccardo.perni at aslromab.it> wrote:
>>> >> Is it possible
>>> >> to handle this situation?
>>> >
>>> > You may try quorumd. See
>>> >
>>> > http://www.linux-ha.org/QuorumServerGuide
>>>
>>> I'm going to look at it, but is'n it another SPOF?
>>
>> by definition, no.
>> because you've already had at least one failure before quorumd 
>> becomes relevant
> 
> Do you mean that the cluster will continue to work even if I have a
> failure on the quorum server?

yes exactly, the cluster continues to work, if (in your case) both nodes
are up and running. A double failer like quorum server down and one node
down will result in a "no service" state.

But thats even better than running a service twice, if it not designed
to run on more than one node.


> 
> 
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>>
>>
> 
> --Riccardo Perni
> Unità Operativa Informatica Aziendale
> ASL Roma-B
> 
> 
> 
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