A migration framework provides for the migration of services in a cluster. A migratable target contains a list of servers in the cluster capable of hosting a migratable service. A migration manager can migrate the service between servers in the migratable target, and can activate an instance of the service...http://www.google.co.uk/patents/US20030233433?utm_source=gb-gplus-sharePatent US20030233433 - Systems and methods for migratable services
