> > > That's a kernel/userspace mismatch > > Upgrade the cman user tools. > Thanks' and sorry if you had to repeat some stuff again. In fact I had the newest versions installed. What I did now was to recompile all the packages for the clustersuite and install these packages. After this the "quorated" problem was solved. One node was now a member of the cluster but I still could not get the other one to be a member. After reboot of both systems both nodes were clustermembers so this works now (I got another message from Jari who told me that something could be wrong with my fence domain and I should reboot it). At the moment it looks much better than this morning. Something with my fencing is not correctly set up and services are not correctly working. Maybe I have to contact the mailing list later but for the moment thanks' to all who gave an answer. Pedro -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster