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.

Date of Patent:
Sep. 13, 2016

Filed:

Oct. 25, 2006
Applicant:

Ching-hai Hung, Taipei Hsien, TW;

Inventor:

Ching-Hai Hung, Taipei Hsien, TW;

Assignee:

INFORTREND TECHNOLOGY, INC., Taipei Hsien, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 11/10 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1088 (2013.01); G06F 11/1076 (2013.01);
Abstract

Data access methods and storage subsystems thereof for reading data from storage devices in a redundant array of independent disks (RAID) system are provided. After a controller receives a read request, the target data that the controller is about to read and the sub-stripe(s) where the target data is located are determined according to the logical address block information in the read request. The controller simultaneously issues a plurality of I/O requests to all storage devices in order to read the target data and the related data distributed on the same sub-stripe(s) at the same time. If there is any target data without responses for a certain time, it is able to use the related data, which is already responded to the controller, to generate the redundant data identical to the target data for responding the read request as soon as possible so as to reduce unnecessary waiting time.


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