when creating a failover policy this list is transformed into a run time failover domain by the failover script high availability base software uses the run time failover domain along with failover attributes and the node membership to determine the node on which a resource group should reside high availability base software stores the run time failover domain and uses it as input to the next failover script invocation depending on the run time conditions and contents of the failover script the initial and run time failover domains may be identical in general high availability base software allocates a given resource group to the first node listed in the run time failover domain that is also in the node membership the point at which this allocation takes place is affected by the failover attributes a failover attribute is a string that affects the allocation of a resource group in a cluster the administrator must specify system attributes such as auto_failback or controlled_failback and can optionally supply site specific attributes a failover script is a shell script that generates a run time failover domain and returns it to the high availability base software process the high availability base software process applies the.