Patent ID: 6266781
Filing Date: 2001-07-24
Classification: G06F

Abstract:
A computer system for fault tolerant computing comprising:a plurality of host computers interconnected on a network;a first copy of an application module running on a first of said host computers;a second copy of the application module operative on a second of said host computers;a manager daemon process running on one of said plurality of host computers, the manager daemon process receiving an indication upon a failure of the first copy of the application module and initiating failure recovery with said second copy of the application module; andmeans for providing a registration message to said manager daemon process, said registration message specifying said application module and a style of replication to be maintained by said manager daemon process for said application module from among a plurality of different replication styles;wherein said second copy is maintained in an operative state for fail-over protection upon a failure of the first copy of the application module in accordance with the registered replication style.