Backup switching control system and method

Details Backup switching control system and method Backup switching control system and method

1994-06-10

2000-11-14

Wright, Norman Michael

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

714723, 714 13, H02H 305, G11C 2900

Patent

active

061484156

ABSTRACT:
One or more combinations of an operating data processing machine and a backup data processing machine are connected together to enable backup switching wherein the backup machine takes over the data processing from the operating machine when a failure occurs in the operating machine. In particular, each of the operating and backup machines is connected to one or several system resources, such as data storage or data output devices. The operating processor exclusively occupies the system resources, and when a failure occurs the operating processor is disconnected therefrom. A disconnection completion notice is sent to the backup processor, which then begins to exclusively occupy the system resources for performing ongoing data processing that would have been performed by the operating processor had the failure not occurred. When a failure occurs with the operating processor, the data being processed and the data concerning the failure are dumped to an auxiliary memory to facilitate analysis of the failure. Once the failed operating processor is returned to service, it functions as a backup processor that is switched to take over the data processing when a failure occurs in the new operating processor.

REFERENCES:
patent: 4819232 (1989-04-01), Krings
patent: 5111384 (1992-05-01), Aslanian et al.
patent: 5157663 (1992-10-01), Major et al.
patent: 5202980 (1993-04-01), Morita et al.
patent: 5255367 (1993-10-01), Bruckert et al.
patent: 5307481 (1994-04-01), Shimazaki et al.
Katsuki et al., Pluribus--An Operational Fault-Tolerant Processor, Proceedings of the IEEE, Oct. 1978, at 1146.
Gaertner at al., Architecture for a Highly Reliable Parallel Computer System, Gaertner Research, Oct. 1975, at Abstract.
Schulman, Stalking GP Faults: Parts II, Dr. Dobb's Journal, Feb. 1990, at 76.

Affiliated with

Also associated with

Rating

Backup switching control system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Backup switching control system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backup switching control system and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2076240