Continuously available computer memory systems

Details Continuously available computer memory systems Continuously available computer memory systems

1996-11-26

1998-12-08

Le, Dieu-Minh

39518209, 39518211, G06F 1100

Patent

active

058482300

ABSTRACT:
A highly reliable computer memory storage system that is divided into subsystems, each of which is provided in triplicate: a primary subsystem, a backup subsystem and a spare subsystem. Upon detection of a non-recoverable failure in a primary subsystem, the backup subsystem substantially immediately assumes the tasks of the primary subsystem while the spare subsystem is integrated into the operation of the computer memory storage system. The triple replication of all subsystems and mechanisms for detecting failures in at least the primary and secondary subsystems provides an overall memory system which is highly reliable and substantially never requires servicing. In an alternative embodiment, three subsystems can share a load equally, for example a cooling or power supply load requirement. Upon failure, of any one or two of such three redundant subsystems, the remaining subsystems(s) is built with sufficient extra capacity that remaining subsystem(s) can still supply the total power or cooling requirements of the system.

REFERENCES:
patent: 4092732 (1978-05-01), Ouchi
patent: 4356550 (1982-10-01), Katzman
patent: 4607330 (1986-08-01), McMurray
patent: 4761785 (1988-08-01), Clark et al.
patent: 4817035 (1989-03-01), Timsit
patent: 4870643 (1989-09-01), Bultman et al.
patent: 4899342 (1990-02-01), Potter et al.
patent: 4914656 (1990-04-01), Dunphy et al.
patent: 4993030 (1991-02-01), Krakauer et al.
patent: 5126889 (1992-06-01), Walden
patent: 5148432 (1992-09-01), Gordon et al.
patent: 5212784 (1993-05-01), Sparks
patent: 5237658 (1993-08-01), Walker et al.
patent: 5325363 (1994-06-01), Lui
patent: 5379417 (1995-01-01), Lui et al.
patent: 5398331 (1995-03-01), Huang
patent: 5438226 (1995-08-01), Kuchta
patent: 5546535 (1996-08-01), Stallmo et al.
Article by Dimitri Kececioglu, entitled "Reliability Engineering Handbook" published by Prentice Hall, Vol. 1,pp. 74-77.
Article by Chen et al., entitled "Two Papers on RAIDSs" published by Computer Science Division, Department of Electrical Engineering and Coputer Sciences University of California, Berkley, Report No. UCB/CSD 88/479, pp. 1-12 (2 sets 24 pgs).

Affiliated with

Also associated with

Rating

Continuously available computer memory systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuously available computer memory systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuously available computer memory systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-187482