[All Linux Operating Systems and OVS] Oracle VM Server hosts and guest Virtual Machines can be forced to reboot during a failover because of too short a time-out value.
Oracle recommends that you increase the heartbeat time-out value on all Oracle VM Server servers with the information shown below:
Edit the following file on all servers:
/etc/sysconfig/o2cb
Oracle recommends that you set a time-out threshold value of 151 or higher as this value impacts failback time. You may need to adjust this value based on your environment. This is an example of how to set the value to the minimum recommended value of 151:
OCB_HEARTBEAT_THRESHOLD=151