On Mon, Dec 7, 2009 at 2:17 PM, unni krishnan <unnikrishna...@gmail.com> wrote: > Ok, one more doubt. How heartbeat + pacemaker is going to detect that > the drbd is in stand alone state. There is no cluster partition. Only > drbd is disconnected.
resource monitoring. i would assume the RA looks for this case > > > On Mon, Dec 7, 2009 at 4:40 PM, Andrew Beekhof <and...@beekhof.net> wrote: >> On Sun, Dec 6, 2009 at 8:31 PM, unni krishnan <unnikrishna...@gmail.com> >> wrote: >>> Hi, >>> >>> We are using a cluster setup something like : >>> >>> http://picasaweb.google.com/lh/photo/e_uAYjG-8nh7oRZzXDp5HA?feat=directlink >>> >>> We are using >>> >>> OpenVZ for Virtualization >>> DRBD with ocfs2 in dual primary mode >>> heartbeat + pacemaker for HA >>> >>> Currently I have not added the drbd in pacemaker. But added the VPS as >>> resources in pacemaker, so that the VPS can fail over or fail back. >>> >>> My question is, if I remove the cross over cable that connects the >>> drbd then the two server will run in >>> >>> Primary/Unknown state and since the heartbeat connection which is >>> through another cable is not broken, the VPS will run in two nodes. >>> >>> So the data written to two drdb devices in two nodes are different and >>> it is not possible to discard data in any node. What is the better >>> solution for this problem. Please give some hints, thanks :-) >> >> In a word, fencing. >> You need to configure a stonith resource and set the stonith-enabled >> option to true. >> >> _______________________________________________ >> Pacemaker mailing list >> Pacemaker@oss.clusterlabs.org >> http://oss.clusterlabs.org/mailman/listinfo/pacemaker >> > > > > -- > Regards, > Unni > > _______________________________________________ > Pacemaker mailing list > Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > _______________________________________________ Pacemaker mailing list Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker
