This might be of interest...fyi: Comparing 10.2.0.1 and 10.2.0.3 Linux RAC Fencing. Also, Fencing Failures (Split Brain). <http://kevinclosson.wordpress.com/2007/01/10/comparing-10201-and-10203- linux-rac-fencing-also-fencing-failures-split-brain/> kevinclosson.wordpress.com