STONITH
You could use
- ilo system management boards
- ipmi system managemt boards
- power swiches , ....
You can even run stonith -l to figure out a proper set of
stonith devices.
And yes you can setup more than one heartbeat link.
Just add an other link derictive to /etc/ha.d/ha.cf
----- Original Nachricht ----
Von: Dejan Muhamedagic <deja...@fastmail.fm>
An: tap...@eso.org, linux-ha@lists.linux-ha.org
Datum: 09.02.2009 09:55
Betreff: Re: [Linux-HA] Looking for efficient STONITH device - must not be
single-point-of-failure
> Hi,
>
> On Fri, Feb 06, 2009 at 12:53:58PM +0100, Tobias Appel wrote:
> > Hi all,
> >
> > well to be honest I don't know that much about STONITH yet, but I know
> > what it's supposed to do.
> > In our setup we have only 2 nodes, running Heartbeat 2.14 connected via
> > a cross-over cable (side question, is it possible to use more then one
> > NIC to connect the two servers, thus when one fails a backup NIC is
> > always available?).
> >
> > Right now when the link is severed we have a split-brain state, since
> > each node thinks that the other one is dead.
> >
> > Now I did some research about STONITH devices, but there is not that
> > much information. I know that we could use an UPS from APC for example,
> > and if a split-brain occurs each server tries to telnet into the UPS and
> > turn off the power for the other machine.
> >
> > Now my boss don't really like this idea because if we connect both
> > servers to the same UPS we have a single point of failure again. Is
> > there any other solution for a STONITH device which is not a spof?
>
> No, it's not. A fencing device failure can only be the second
> one. If you have two simultaneously, you're really out of luck.
>
> Thanks,
>
> Dejan
>
> >
> > Regards,
> > Tobi
> >
> > _______________________________________________
> > Linux-HA mailing list
> > Linux-HA@lists.linux-ha.org
> > http://lists.linux-ha.org/mailman/listinfo/linux-ha
> > See also: http://linux-ha.org/ReportingProblems
>
>
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