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:
Dec. 12, 2006
Filed:
Dec. 17, 2002
J. Mark Morris, Poway, CA (US);
Eric Shank, San Diego, CA (US);
J. Mark Morris, Poway, CA (US);
Eric Shank, San Diego, CA (US);
NCR Corp., Dayton, OH (US);
Abstract
A method, computer program, and computer system are disclosed for managing data corruption identified by an application in a storage subsystem. Data requested of the application by a process is copied from a primary storage device in the storage subsystem to a memory. A data integrity check is performed on the data stored in the memory. If the data integrity check succeeds, the data is provided from the application to the process. If the data integrity check fails: the data requested by the process and stored on the primary storage device in the storage subsystem is identified; the data requested by the process and stored on a redundant storage device in the storage subsystem is identified; the data stored in the memory, the identified data stored on the primary storage device, and the identified data stored on the redundant storage device are compared as the first, second, and third copies, respectfully; and at least one of a group of instructions is chosen to be transmitted from the application to the storage subsystem based at least in part on the comparison of the first, second, and third copies.