Backup to NFs crashes Nodes and VMS

If you have enabled HA fencing is a requirement to ensure that two or more nodes does not run the same vm at the same time. Fencing will effectively cut of a node from actively participate in the cluster until an operator has intervened.
 
looks enabled

cluster config_version 4 name xxx
cman keyfile corosync.authkey
clusternodes node 1,2,3 + name + votes = 1



my nodes are running on local storage.
only backups go to NFS
 
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