Good day, I'm running Cluster Suite on CentOS4 on a 35 PC cluster and a SAN, when i try to update the cluster.conf on my cluster I have this message: [root@linuxlab1 cluster]# ccs_tool update /etc/cluster/cluster.conf Failed to receive COMM_UPDATE_NOTICE_ACK from pc10. Hint: Check the log on pc10 for reason. Failed to update config file. [root@linuxlab1 cluster]# but in pc10 log files I can't see anything, also if I try to run ccsd on pc10 with the command ccsd -n I can't see the error Versions of cman, ccsd amd rgmanager are: ccs-1.0.7-0 cman-1.0.11-0 rgmanager-1.9.53-0 I have 18 PC on a 1Gbit LAN and 17 PC on 100Mbit Fedele STABILE -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster