Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Patent
1997-04-25
1998-10-27
Chan, Eddie P.
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
711161, 3951822, G06F 1216
Patent
active
058288236
ABSTRACT:
A method and apparatus for efficiently download and/or upload critical data elements between a computer's memory to/from a data save disk system, when a failure of a primary power source is detected. This is accomplished by coupling the data save disk system directly to the memory module such that the data elements in the memory module may be downloaded directly to the data save disk system without any intervention by a host computer. This configuration may have a number of advantages. First, the speed at which the data elements may be downloaded from the memory module to the data save disk system may be enhanced due to the direct coupling therebetween. Second, significant power savings may be realized because only the memory module and the data save disk system need to be powered by a secondary power source to effect the download operation. This may significantly increase the amount of time that the secondary power source may power the system thereby increasing the number of data elements that can be downloaded from the memory.
REFERENCES:
patent: 3801963 (1974-04-01), Chen
patent: 4020466 (1977-04-01), Cordi et al.
patent: 4084231 (1978-04-01), Capozzi et al.
patent: 4143282 (1979-03-01), Graf et al.
patent: 4298929 (1981-11-01), Capozzi
patent: 4323987 (1982-04-01), Holtz et al.
patent: 4451742 (1984-05-01), Aswell
patent: 4646229 (1987-02-01), Boyle
patent: 4658352 (1987-04-01), Nagasawa
patent: 4853843 (1989-08-01), Ecklund
patent: 5018148 (1991-05-01), Patel et al.
patent: 5032979 (1991-07-01), Hecht et al.
patent: 5089958 (1992-02-01), Horton et al.
patent: 5093787 (1992-03-01), Simmons
patent: 5117324 (1992-05-01), Johnson, Jr.
patent: 5133060 (1992-07-01), Weber et al.
patent: 5146573 (1992-09-01), Sato et al.
patent: 5193176 (1993-03-01), Brandin
patent: 5195100 (1993-03-01), Katz et al.
patent: 5202969 (1993-04-01), Sato et al.
patent: 5222224 (1993-06-01), Flynn et al.
patent: 5241508 (1993-08-01), Berenguel et al.
patent: 5307484 (1994-04-01), Baker et al.
patent: 5315161 (1994-05-01), Robinson et al.
patent: 5341493 (1994-08-01), Yanai et al.
patent: 5396637 (1995-03-01), Harwell et al.
patent: 5448719 (1995-09-01), Schultz et al.
patent: 5515333 (1996-05-01), Fujita et al.
patent: 5519831 (1996-05-01), Holzhammer
patent: 5544312 (1996-08-01), Hasbun et al.
patent: 5588129 (1996-12-01), Ballard
patent: 5615353 (1997-03-01), Lautzenheiser
Kaunitz et al., "Audit Trail Compaction for Database Recovery", Communications of the ACM, vol. 27, No. 7, Jul. 1984.
Verhofstad, "Recovery Techniques for Database Systems", Computing Surveys, vol. 10, No. 2, Jun. 1978.
Gray et al., "The Recovery manager of the System R Database Manager", Computing Surveys, vol. 13, No. 2, Jun. 1981.
Byers Larry L.
Robeck Gary R.
Chan Eddie P.
Nguyen Hiep T.
Unisys Corporation
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