[Pacemaker] Two resource nodes + one quorum node

Andrey Groshev greenx at yandex.ru
Thu Jun 13 18:45:33 UTC 2013



13.06.2013, 18:15, "Lars Marowsky-Bree" <lmb at suse.com>:
> On 2013-06-13T16:24:25, Andrey Groshev <greenx at yandex.ru> wrote:
>
>>>  It doesn't have to be able to run services, it only needs to contribute to quorum.
>>  That is, there is no way to switch the node into standby mode from a pacemaker script/config?
>
> Sure there is:
>
> # crm node standby nodename
>
> The node will not run resources, but you need to keep it updated like
> the others as well - so there's management overhead.
>
> Personally, 2 node clusters work quite fine for our customers. I don't
> quite agree with the major shortcomings they're supposed to have, though
> I'm sure the use case could be further improved.
>

I did not finish last post.
Maybe you're lucky.
Misfortunes never come singly.
Rarely has the node quietly died and stopped.
I have a very unreliable environment - a cloud for developers in the vSphere.
And then on one side of me to want to reliability, 
the other to prevent unnecessary expenses, 
and a third system administrators reluctantly tune "vSphera".
We call if "make from shit a candy" (proverb)
As the cloud really no setup from time to time lacks CPU, or memory, or network lag or all at once ....

> Regards,
>     Lars
>
> --
> Architect Storage/HA
> SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg)
> "Experience is the name everyone gives to their mistakes." -- Oscar Wilde
>
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