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Re: [Linux-cluster] Graceful Degradation



--- gordan bobich net wrote:

> On Fri, 14 Dec 2007, Roger Peña wrote:
> 
> > I thinks this is question #1 in the FAQs and in
> this
> > list :-)
> >
> > the short anwser and the first place to look at
> is:
> > 1- fencing not configured or configured as manual
> > 2- fencing problems, the devices not working as
> they
> > should
> 
> The problem is that I don't have any devices I could
> do fencing with. Is 

you do not have:
1- shared storage? usually, the "server" of the shared
storage have a way to cut the storage to a client, so
this can serve as a fencing device
2- what kind of server do you have? HP servers has
iLo, SUN and Dell servers have something similar. so
those interfaces can act as fencing devices


> there a way to achieve this without external
> monitoring?
not that I know off,
but I don't want to :-), I would like to be sure that
a  node with problems gets kicked from the cluster so
it did not mess things that is why I will decline to
start a cluster without at least a first level of
fencing.

cu
roger

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