On Mon, Jan 23, 2012 at 08:55:02AM +1100, Andrew Beekhof wrote: > On Sat, Jan 21, 2012 at 12:18 AM, Dejan Muhamedagic <deja...@fastmail.fm> > wrote: > > On Fri, Jan 20, 2012 at 01:09:56PM +1100, Andrew Beekhof wrote: > >> On Thu, Jan 19, 2012 at 12:15 AM, Dejan Muhamedagic <deja...@fastmail.fm> > >> wrote: > >> > On Wed, Jan 18, 2012 at 06:58:20PM +1100, Andrew Beekhof wrote: > >> >> On Wed, Jan 18, 2012 at 6:00 AM, Dejan Muhamedagic > >> >> <deja...@fastmail.fm> wrote: > >> >> > Hello, > >> >> > > >> >> > On Tue, Jan 03, 2012 at 05:19:14PM +1100, Andrew Beekhof wrote: > >> >> >> Does anyone have an opinion on the following schema and example? > >> >> >> I'm not a huge fan of the index field, but nor am I of making it > >> >> >> sensitive to order (like groups). > >> >> > > >> >> > What is wrong with order in XML elements? It seems like a very > >> >> > clear way to express order to me. > >> >> > >> >> Because we end up with the same update issues as for groups. > >> > > >> > OK. > >> > > >> > [...] > >> > > >> >> > Is there a possibility to express > >> >> > fencing nodes simultaneously? > >> >> > >> >> No. Its regular boolean shortcut semantics. > >> > > >> > As digimer mentioned, it is one common use case, i.e. for hosts > >> > with multiple power supplies. So far, we recommended lights-out > >> > devices for such hardware configurations and if those are > >> > monitored and more or less reliable such a setup should be fine. > >> > It would still be good to have a way to express it if some day > >> > somebody actually implements it. I guess that the schema can be > >> > easily extended by adding a "simultaneous" attribute to the > >> > "fencing-rule" element. > >> > >> So in the example below, you'd want the ability to not just trigger > >> the 'disk' and 'network' devices, but the ability to trigger them at > >> the same time? > > > > Right. > > For any particular reason? Or just in case?
For nodes with multiple PSU and without (supported) management board. I think that one of our APC stonith agents can turn more than one port off simultaneously. Thanks, Dejan > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
