Hello Florian, okay, I will try to improve in giving better error reports. That is an error in the corosync log on the active node: Jan 09 13:49:51 lxds07 crmd: [1360]: info: te_rsc_command: Initiating action 2: stop pri_ping:1_stop_0 on lxds05
"corosync-objctl | grep member" brings no output on the nodes Here is the dump: http://pastebin.com/cp8jniXC The dump with "cibadmin -Q" does not work on the passive node. root@lxds05:~# cibadmin -Q Call cib_query failed (-41): Remote node did not respond <null> This is the cibadmin dump of the active one: http://pastebin.com/Yg4Jsaxy ============ Last updated: Mon Jan 9 13:57:14 2012 Stack: openais Current DC: lxds07 - partition with quorum Version: 1.0.8-042548a451fce8400660f6031f4da6f0223dd5dd 2 Nodes configured, 2 expected votes 6 Resources configured. ============ Online: [ lxds05 lxds07 ] Resource Group: group_omd pri_fs_omd (ocf::heartbeat:Filesystem): Started lxds07 pri_apache2 (ocf::heartbeat:apache): Started lxds07 pri_nagiosIP (ocf::heartbeat:IPaddr2): Started lxds07 Master/Slave Set: ms_drbd_omd Masters: [ lxds07 ] Slaves: [ lxds05 ] Clone Set: clone_ping Started: [ lxds07 ] Stopped: [ pri_ping:1 ] omd_main (ocf::omd:omdnagios): Started lxds07 res_MailTo_omd_main (ocf::heartbeat:MailTo): Started lxds07 res_MailTo_omd_group (ocf::heartbeat:MailTo): Started lxds07 Migration summary: * Node lxds05: * Node lxds07: pingd=3000 Thanks for all tips. Regards Stefan _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org