Manish Kathuria napisał(a): > Hello, > > We have configured an active-active two node cluster accessing a > shared storage. We are using Red Hat Cluster Suite on RHEL 4Update 4. > The nodes are HP Servers having ILOs as the fence devices. I am facing > certain problems in the setup and would seek suggestions. > > While booting up the systems, many a times one node forces the other > one to reboot for no reason. How do I prevent that ? Try to set post_join_delay to high value fe. 600 > > We want the failover to happen when the power supply fails to either > of the nodes. In order to test the scenario, we removed the power > cables from one of the nodes. However the failover did not happen and > upon observing the logs we found that the alive node could not connect > to the fence device (ILO in this case) of the dead node since it was > powered off and the fencing could not take place. Does this mean that > we would not be able to have a failover in case of power failure for > one of the nodes. Is there a way we can do it ? How is the cluster > supposed to react when the ILO itself is powered off ? You need to perform manual fencing(administrator reaction) when it happend. > > Another failover test was conducted by removing the network > connectivity on of one of the nodes. Failover did happen smoothly in > the dead node was rebooted by the fence device. However when the dead > node was reconnected to the network, it fenced and rebooted the alive > node. How to deal with this ? Try to increase post_join_delay. Best Regards Maciej Bogucki -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
