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:
Jan. 10, 2012
Filed:
Oct. 18, 2007
Michael Piszczek, Laurel, MD (US);
John G. Manning, Ellicott City, MD (US);
Cedric Fernandes, Columbia, MD (US);
Lauren Belella, Smithsburg, MD (US);
Michael Piszczek, Laurel, MD (US);
John G. Manning, Ellicott City, MD (US);
Cedric Fernandes, Columbia, MD (US);
Lauren Belella, Smithsburg, MD (US);
Datadirect Networks, Inc., Chatsworth, CA (US);
Abstract
A latency reduction method for read operations of an array of N disk storage devices () having n disk storage devices (A-H) for data storage and p of disk storage devices (I,J) for storing parity data is provided. Utilizing the parity generation engine's () fault tolerance of for a loss of valid data from at least two of the N disk storage devices (A-J), the integrity of the data is determined when N−1 of the disk storage devices (A-J) have completed executing a read command. If the data is determined to be valid, the missing data of the Ndisk storage device is reconstructed and the data transmitted to the requesting processor (). By that arrangement the time necessary for the Ndisk storage device to complete execution of the read command is saved, thereby improving the performance of memory system ().