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:
Feb. 28, 2006
Filed:
Jan. 30, 2002
James Stephen Fields, Jr., Austin, TX (US);
Alongkorn Kitamorn, Austin, TX (US);
Wayne Lemmon, Rochester, MN (US);
David Otto Lewis, Rochester, MN (US);
Kevin F. Reick, Austin, TX (US);
James Stephen Fields, Jr., Austin, TX (US);
Alongkorn Kitamorn, Austin, TX (US);
Wayne Lemmon, Rochester, MN (US);
David Otto Lewis, Rochester, MN (US);
Kevin F. Reick, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides an improved method, an system, and a set of computer implemented instructions for handling a cache containing multiple single-bit hard errors on multiple addresses within a data processing system. Such handles will prevent any down time by logging in the parts to be replaced by an operator when certain level of bit errors is reached. When a hard error exists on a cache address for the first time, serviceable first hard error, that cache line is deleted. Thus the damaged memory device is no longer used by the system. As a result, the system is running with 'N−x' lines wherein 'N' constitutes the total number of existing lines and “x” is less than “N”. An alternative method is to exchange the damaged memory device to a spare memory device. In order to provide such services, the system must first differentiate whether an error is a soft or hard error.