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:
Aug. 04, 2020
Filed:
Nov. 28, 2017
International Business Machines Corporation, Armonk, NY (US);
Charles J. Camp, Sugar Land, TX (US);
Ioannis Koltsidas, Zurich, CH;
Roman A. Pletka, Zurich, CH;
Andrew D. Walls, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a data storage system including a non-volatile random access memory (NVRAM) array, a page is a smallest granularity of the NVRAM array that can be accessed by read and write operations, and a memory block containing multiple pages is a smallest granularity of the NVRAM array that can be erased. Data are stored in the NVRAM array in page stripes distributed across multiple memory blocks. In response to detection of an error in a particular page of a particular block of the NVRAM array, only the particular page of the particular block is retired, such that at least two of the multiple memory blocks across which a particular one of the page stripes is distributed include differing numbers of active (non-retired) pages.