HA Failover

Hi,

 

I configured HA through HA VLAN and I have two questions related with this:

 

How can I set the priority of each one?

 

How can I set preemptive?

 

How F5, manage split brain scenario?

 

And finally,I want that just failover occurs if the entire unit fails or if the trunk connecting to the outside fail, how can configure it?

 

Regards!!