Hi, On Tue, Jan 20, 2009 at 04:14:00PM +0100, Adrian Chapela wrote: > Dejan Muhamedagic escribi?: > > Hi, > > > > On Mon, Jan 19, 2009 at 08:00:50PM +0100, Adrian Chapela wrote: > > > >> Hello! > >> > >> I am thinking again on the stonith. IPMI could be an option, but is it > >> really a good option for production ? What happen if the network break > >> down ? > >> > > > > You need to provide different paths for the heartbeat and > > connection to the ipmi devices. > > > > Also, make your power supply resilient: if a node loses power, > > the ipmi device will be dead too, and your cluster will wait > > forever for the fencing to succeed. > > > Ok, but what about a kernel panic ? when the OS hungs up the other node > can't know what is happening on the node that is hunged up. I am > thinking on this situation.
The state of host OS doesn't influence the ipmi (lights-out) device. As long as the node has power and the network connection to the ipmi device works, you should be ok. Thanks, Dejan > Of course the two node will have RAID, > redundant network (with bonding) and redundant power supplies but there > is an option to have a split brain with a node hunged up, what do you > think about this ? > > > >> Is totally resolved the split brain ? Have you tested with HP > >> Proliant Servers ? > >> > > > > I think that people use ipmi with proliants. > > > > Thanks, > > > > Dejan > > > > > >> Thank you! > >> > >> _______________________________________________ > >> Pacemaker mailing list > >> Pacemaker@oss.clusterlabs.org > >> http://oss.clusterlabs.org/mailman/listinfo/pacemaker > >> > > > > _______________________________________________ > > Pacemaker mailing list > > Pacemaker@oss.clusterlabs.org > > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > > > > > > _______________________________________________ > Pacemaker mailing list > Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker _______________________________________________ Pacemaker mailing list Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker
