Boots – shoes – and leggings
Patent
1993-06-21
1994-06-28
Gossage, Glenn
Boots, shoes, and leggings
395275, 364DIG1, G06F 1300, G06F 1206
Patent
active
053255097
ABSTRACT:
A computer data storage device made up of both solid state storage and rotating magnetic disk storage maintains a fast response time approaching that of a solid state device for many workloads and improves on the response time of a normal magnetic disk for practically all workloads. The high performance is accomplished by a special hardware configuration coupled with unique procedures and algorithms for placing and maintaining data in the most appropriate media based on actual and projected activity. The system management features a completely searchless method (no table searches) for determining the location of data within and between the two devices. Sufficient solid state memory capacity is incorporated to permit retention of useful, active data, as well as to permit prefetching of data into the solid state storage when the probabilities favor such action. Movement of updated data from the solid state storage to the magnetic disk and of prefetched data from the magnetic disk to the solid state storage is done on a timely, but unobtrusive, basis as background tasks of the described device. A direct, private channel between the solid state storage and the magnetic disk prevents the conversations between these two media from conflicting with the transmission of data between the host computer and the described device. A set of microprocessors manages and oversees the data transmission and storage. Data integrity is maintained through a power interruption via a battery assisted, automatic and intelligent shutdown procedure.
REFERENCES:
patent: 4394733 (1983-07-01), Swenson
patent: 4433374 (1984-02-01), Hanson et al.
patent: 4458307 (1984-07-01), McAnlis et al.
patent: 4468730 (1984-08-01), Dodd et al.
patent: 4490782 (1984-12-01), Dixon et al.
patent: 4530054 (1985-07-01), Hamstra et al.
patent: 4603380 (1986-07-01), Easton et al.
patent: 4607346 (1986-08-01), Hill
patent: 4611289 (1986-09-01), Coppola
patent: 4835686 (1989-05-01), Furuya et al.
patent: 4843542 (1989-06-01), Dashiell et al.
patent: 4882642 (1989-11-01), Tayler et al.
patent: 4888691 (1989-12-01), George et al.
patent: 4908793 (1990-03-01), Yamagata et al.
patent: 4959774 (1990-09-01), Davis
patent: 4972364 (1990-11-01), Barrett et al.
patent: 5133060 (1992-07-01), Weber et al.
"Methods For The Deployment of IBM 3880 Model 13 Cached Storage Controllers" By Paula T. Guttman, Comp. Mgmt. Group Int'l. Conference, San Francisco, Dec. 1984, pp. 44-53.
"Disc Caching In the System Processing Units of the HP 3000 Family of Computers", By John R. Busch & Alan J. Kondoff, Feb. 1985, Hewlett-Packard Journal, pp. 21-39.
IBM Systems Journal vol. 24 Nos. 3/4, 1985 "Cache-DASD Storage Design for Improving System Performance", By Grossman, pp. 316-334.
International Business Machines Corp.-"A Multiple Workload Approach to Cache Planning" By Bruce McNutt & James W. Murray, pp. 9-15.
CMG '87-The Computer Measurement Group, Inc., Orlando Dec. 7-11 1987-"BEST/1 Analysis of the IBM 3880-13 Cached Storage Controller" By Jeffrey P. Buzen & Anneliese Von Mayrhauser, pp. 156-173.
Computer Science Division, University of California, Berkeley, "Maximizing Performance in Striped Disk Array" By Peter M. Chen & David A. Patterson, pp. 322-331.
"Cache Memory Design: An Evolving Art" By Alan Jay Smith, IEEE Spectrum, Dec. 1987, pp. 40-44.
University of Wisconsin, "A Case For Direct-Mapped Caches" By Mark D. Hill, Computer, Dec. 1988, pp. 25-40.
IBM, Alamaden Research Center and Tucson Laboratory "The IBM 3990 Disk Cache", By Jai Menon and Mike Hartung, pp. 146-151.
The Computer Society of IEEE, Feb. 29-Mar. 4, 1988 "COMPCON88", Nippon Electric Co., Tokyo, Japan Integrated Disk Cache System With File Adaptive Control By Tokunaga et al., pp. 412-416.
1988 IEEE, Amperif Corporation, "The Amperif Cache Disk System" By Stephen Fuld pp. 156-157.
COMPCON88, Feb. 29-Mar. 4, 1988, Boole & Babbage, Inc., "DASD Cache Controllers: Performance Expectations and Measurements" By Kovach, pp. 74-78, IEEE Computer Society, Digest of Papers.
"Degradation of IMS Performance Using a 3880-23 Cache Controller" By Carolyn Hanna, pp. 15-21, Computer Measurement Group (CMG) Conference, Las Vegas, Dec. 9-12, 1986.
"Performance & Tuning of Cached I/O Subsystems", By Mark B. Friedman, pp. 717-727, Computer Measurement Group (CMG) Conference, Las Vegas, Dec. 9-12, 1986.
Caserza Steven F.
Gossage Glenn
Zitel Corporation
LandOfFree
Method of operating a cache memory including determining desirab does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of operating a cache memory including determining desirab, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of operating a cache memory including determining desirab will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2383407