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:
Sep. 04, 2018
Filed:
Nov. 08, 2017
International Business Machines Corporation, Armonk, NY (US);
Michael J. Palmer, Southampton, GB;
Kelvin Wong, Eastleigh, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, system, and computer program product are provided for back-up and restoration of data between volatile and flash memory. The method for controlling back-up of data to flash memory includes: organizing back-up data into stripes, wherein a stripe is a set of pages across all available flash memory devices, dies and planes which have the same block and page address; maintaining metadata indicating locations of known bad planes and grown bad planes; using the metadata when writing back-up data to determine which planes to send cache program commands to; and sending cache program commands to three or more stripes of data simultaneously including providing an indication in the stripe that the stripe is handling a cache program command If a grown bad block is encountered whilst saving a stripe of data, the stripe of data is re-written to the next available page address avoiding the grown bad block.