Patent
1996-06-28
1997-08-12
Beausoliel, Jr., Robert W.
395601, G06F 1100
Patent
active
056574401
ABSTRACT:
A method and means for asynchronous remote data duplexing at a distant location from copies based at a primary site storage subsystem in which there are first and second pluralities of subsystems at primary and remote sites respectively. Each of the first plurality of subsystems is independently coupled to one or more of the second plurality of subsystems. Further, the first plurality of subsystems is interconnected, and the second plurality of subsystems is interconnected. The method utilizes checkpoint messages to maintain sequence integrity between the first and second plurality of subsystems without the use of a centralized communications service.
REFERENCES:
patent: 5133065 (1992-07-01), Cheffetz et al.
patent: 5155845 (1992-10-01), Beal et al.
patent: 5375232 (1994-12-01), Legvold et al.
patent: 5379398 (1995-01-01), Cohn et al.
Levy & Silberschatz, Log-Driven Backups: A Recovery Scheme for Large Memory Database Systems, 1990 Jerusalem Conference on Information Technology, at 99.
Levy & Silberschatz, Incremental Recovery in Main Memory Database Systems, IEEE Transactions on Knowledge and Data Engineering, Dec. 1992, at 529.
Russinovich & Segall, Application-Transparent Checkpointing in Mach 3.0/UX, Proceedings of the 28th Annual Hawaii Int'l Conf. on System Science, at 114.
Koo & Toueg, Checkpointing and Rollback-Recovery for Distributed Systems, IEEE Transactions on Software Engineering, Jan. 1987, ay 23.
Sens, The Performance of Independent Checkpointing in Distributed Systems, Proceedings of the 28th Annual Hawaii Int'l Conf. on System Science, at 525.
Oracle RDBMS Database Administrator's Guide, vol. 1, Version 7.0, May 1992, pp. 1-14 to 1-49, 2-5 to 2-6; 3-1 to 3-6; 3-12 to 3-14; 27-15 to 27-23; Ch 28.
King et al., Overview of Disaster Recovery for Transaction Processing Systems, 1990 Distributed Computing Systems International Conference, at 286.
Dishon et al., Disk Dual Copy Methods and Their Performance, 1988 Fault Tolerant Computing International Symposium, at 314.
Lomet, Using Timestamping to Optimize Two Phase Commit, 1993 Parallel and Distributed Information Systems International Conference, at 48.
Garcia-Molina et al., Issue in Disaster Recovery, COMPCON Spring '90 IEEE Computer Society International Conference, at 573.
Hobbs, The Distributed Features in Rdb, IEE Colloq. (1992) No. 229: Distributed Databases, at 2/1.
An Efficient Scheme for Providing High Availability, Anupam Bhide, Ambuj Goyal, Hui-I Hsiao, and Anant Jhingran, IBM T.J. Watson Research Center, Feb. 1992, pp. 236-245.
Micka William Frank
Shomler Robert Wesley
Beausoliel, Jr. Robert W.
Brodie Bruce
International Business Machines - Corporation
Wright Norman M.
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