The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1998
Filed:
Dec. 29, 1995
Applicant:
Inventors:
William A Brant, Boulder, CO (US);
Michael Edward Nielson, Broomfield, CO (US);
Assignee:
EMC Corporation, Hopkinton, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
39518204 ; 711114 ; 711113 ; 711134 ; 711136 ;
Abstract
Large numbers of relatively small (e.g., 1.8' or smaller) off-the-shelf disk drives are controlled to maximize the highest throughput performance at the least cost between a host computer and a mass storage subsystem. Host data is stored redundantly so as to form a cache. The controller recognizes data contained in its associated disk cache so as to produce that data to a requesting host with minimum delay. Data not in the disk cache as well as write commands are transferred to the controller of a mass storage subsystem with no substantial delay.