On Thu, Aug 20, 2009 at 07:33:19PM +0200, Andrew Beekhof wrote: > On Thu, Aug 20, 2009 at 4:20 PM, Dejan Muhamedagic<[email protected]> wrote: > > Hi, > > > > On Thu, Aug 20, 2009 at 03:58:19PM +0200, Andrew Beekhof wrote: > >> On Thu, Aug 20, 2009 at 3:56 PM, Terry L. > >> Inzauro<[email protected]> wrote: > >> > >> > Ok. I am indeed using 'external/ssh' as the stonith device. I figure > >> > it was better than nothing as I do not have access to > >> > a hardware stonith device. In you opinion, is using the 'external/ssh' > >> > plugin 'better' than NOT using a stonith plugin at all? > >> > >> personally, i think so. > >> but there are plenty that disagree. > > > > Ah, that would include me :) > > > > If the stonith device fails to fence the failing node then there > > is no failover and you get zero availability. > > But at least your data isn't corrupt. > What's the point of being up if you're serving up garbage?
Well, the idea was not to drop fencing, but to get a proper device. It would be madness to run shared storage and non-cluster filesystems without stonith. Besides, I really can't imagine a good argument not to have a fencing device. Cheers, Dejan > > The probability > > that that happens is much higher when using a device such as > > external/ssh since it depends on both the network availability > > and the OS health. I'll leave it to you to figure out in how many > > ways these two dependencies can hinder a fencing operation. > > > > Thanks, > > > > Dejan > > > > > >> _______________________________________________ > >> Linux-HA mailing list > >> [email protected] > >> http://lists.linux-ha.org/mailman/listinfo/linux-ha > >> See also: http://linux-ha.org/ReportingProblems > > _______________________________________________ > > Linux-HA mailing list > > [email protected] > > http://lists.linux-ha.org/mailman/listinfo/linux-ha > > See also: http://linux-ha.org/ReportingProblems > > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
