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. 04, 2020
Filed:
Oct. 12, 2017
International Business Machines Corporation, Armonk, NY (US);
Roman A. Pletka, Uster, CH;
Timothy J. Fisher, Cypress, TX (US);
Robert E. Galbraith, Rochester, MN (US);
Kevin E. Sallese, Fushear, TX (US);
Christopher M. Dennett, Houston, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Technology for handling page size mismatches when DPL-CLR is performed at multiple levels of a data storage system (for example, RAID level and flash card level). A 'corrective DPL' corrects only a portion of the data that would make up a page at the level at which the data is stored (that is, the 'initial DPL level'), and, after that, a partially corrected page of data is formed and stored in data storage, with the partially corrected page: (i) having a page size characteristic of the initial DPL; (ii) including the part of the data corrected by the corrective DPL; and (iii) further including other data. In some embodiments, the other data has a pattern that indicates that it is invalid, erroneous data, such that an error message will be returned if this portion of the data is attempted to be read.