[Pacemaker] Dual powersupply stonith

Dejan Muhamedagic dejanmm at fastmail.fm
Wed Oct 21 06:35:15 EDT 2009


Hi,

On Wed, Oct 21, 2009 at 09:34:06AM +0200, Johan Verrept wrote:
> On Wed, 2009-10-21 at 01:16 +0200, Dejan Muhamedagic wrote:
> > > In that case, we would need to send two synchronised stonith actions to
> > > two different stonith devices to succesfully stonith a node. Would this
> > > be best solved at pacemaker or at RA level? (Assuming this isn't solved
> > > at hardware level offcourse).
> > 
> > That's not possible at all right now. Unless you go with another
> > fencing solution such as sbd, but that's a different matter.
> 
> Hmm. If a single RA would (transparantly) control two stonith devices,
> it should work?

Yes.

> Error handling would require some thinking though.
> Unless there are some things I am missing, it should be possible with
> two of those IP Power things. Not a generic solution you want to use in
> the project though.

No. In this case, since the power distribution is rather robust,
it would be great to have am on-board management card such as HP
iLO or IBM RSA and then use that for fencing.

Thanks,

Dejan

> 	J.
> 
> 
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