Thanks for the response. I just discovered the problem about 30' ago. post_join_delay was set to the default of 3, meaning that it was only waiting 3 seconds for the node to join before fencing it. Silly. After changing that to 300 seconds, it worked fine. The config was this way with 5.8 and prior so why it wasn't an issue then, who can say. I also changed the fencing agent to fence_ipmilan, and configured the user on the DRAC card to be an "administrator" for IMPI. If it's any help to anyone, I've posted the working cluster.conf file. You can also test your fencing for each drac: fence_ipmilan -a [drac IP] -l [drac user] -p [password for drac user] -o status ...adam ____________________________________________ Adam Wead Systems and Digital Collections Librarian Rock and Roll Hall of Fame and Museum 216.515.1960 (t) 215.515.1964 (f) On Tue, Mar 5, 2013 at 5:57 PM, Joseph L. Casale <jcasale at activenetwerx.com>wrote: > > I have two Dell's which are both fenced via their DRAC6 cards. > > > Without your cluster config, we can only guess. Fencing w/ two nodes > requires specific startup config for this scenario. Given that, I presume > you > can find your issue, or post your conf. > > > jlc > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >