Flexible failover policies in high availability computing systems

Abstract

A system for implementing a failover policy includes a cluster infrastructure for managing a plurality of nodes, a high availability infrastructure for providing group and cluster membership services, and a high availability script execution component operative to receive a failover script and at least one failover attribute and operative to produce a failover domain. In addition, a method for determining a target node for a failover comprises executing a failover script that produces a failover domain, the failover domain having an ordered list of nodes, receiving a failover attribute and based on the failover attribute and failover domain, selecting a node upon which to locate a resource.

What is claimed is:  
     
         1 . A system for implementing a failover policy comprising: 
 a cluster infrastructure for managing a plurality of nodes;    a high availability infrastructure for providing group and cluster membership services; and    a high availability script execution component operative to receive a failover script and at least one failover attribute and operative to produce a failover domain.    
     
     
         2 . A method for determining a target node for a failover, comprising: 
 executing a failover script, said script producing a failover domain, said failover domain having an ordered list of nodes;    receiving a failover attribute; and    based on the failover attribute and failover domain, selecting a node upon which to locate a resource.