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. Dima -- Dimitri Maziuk Programmer/sysadmin BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu _______________________________________________ Linux-HA mailing list Linux-HA@lists.linux-ha.org http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
