On Tue, Mar 08, 2011 at 02:27:52PM -0600, Dimitri Maziuk wrote: > Lars Ellenberg wrote: > > > > Oh, that's easy. external/ssh pings the victim, and if it does not > > answer, which will be the case for a down node as well as a down link, > > stonith is considered to have been successful ;-) > > > > In the "node down" case, this will allow the cluster to proceed, > > and all is well. > > > > But in the "link down" case, this will allow the cluster to proceed, > > even though the victim will continue to run it's services, causing > > cluster split brain and data corruption. > > Well, realistically, if the link is a foot of x/over cable and gremlins > have not been pulling on it, and the NICs aren't falling out of their > slots, and are half-decent quality hardware, and the drivers aren't > alpha prototype code, and so on, the chances of it being the "link down" > case should be fairly low.
LOL. BTW, the gremlins I saw doing that were wearing company badges and pulling wrong cables. Realistically, never underestimate human factor :) Dejan > Dima > -- > Dimitri Maziuk > Programmer/sysadmin > BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu > _______________________________________________ > 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
