Hello List, I test a HA Cluster in an ESX3.5 and vSphere 4 environment. In the Conga Gui is a VMware Fencing option but I can't find any documentation about this option. I've already read something about it but there are still some questions. I hope somebody can help. How does it work exactly? Who communicate with whom? Communicate the guest with the vCenter Server or the guest with the ESX Host? And what is with Migration when the guests communicate with the ESX Host? Has somebody a declaration? Maybe even a drawing or picture? Thank you for your help. Best regards Robert -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster