I had a crash yesterday in my ovirt cluster, which is made up of 3 nodes. I just tried to add a new network, but the whole cluster crashed I added a new network to my cluster, but while I was debugging the newswitch, when the switch was poweroff, the node detected the network card status down and then moved to Non-Operational state. At this time all of 3 nodes moved to Non-Operational state. All virtual machines have started automatic migration,When I received the alert email, all virtual machines were suspended In 15 minutes my newswitch were power up again.The 3 ovirt-nodes become active again, but many virtual machines become unresponsive or suspended due to forced migration, and only a few virtual machines are pulled up again due to cancelled migration After I tried to terminate the migration tasks and restart ovirt-engine service, I was still unable to restore most of the virtual machines, so I had to restart 3 ovirt-nodes to restore my virtual machine I didn't recover all the virtual machines until an hour later Then I modify my migration policy to " Do Not Migrate Virtual Machines" Which migration Policy do you recommend? I'm afraid to use cluster... zhouhao(a)vip.friendtimes.net