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:
May. 23, 2023
Filed:
Jun. 29, 2021
International Business Machines Corporation, Armonk, NY (US);
Roman Alexander Pletka, Uster, CH;
Timothy J. Fisher, Cypress, TX (US);
Adalberto Guillermo Yanes, Sugar Land, TX (US);
Nikolaos Papandreou, Thalwil, CH;
Radu Ioan Stoica, Zurich, CH;
Charalampos Pozidis, Rueschlikon, CH;
Nikolas Ioannou, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A data storage system provides persistent storage in bulk non-volatile memory. A controller of the data storage system receives a host write command and buffers associated host write data in both a first write cache in non-volatile memory and a mirrored second write cache in volatile memory. The controller destages the host write data to the bulk non-volatile memory from the second write cache but not the first write cache. The controller services relocation write commands requesting data relocation within the bulk non-volatile memory by reference to the second write cache. Servicing the relocation write commands includes buffering relocation write data in the second write cache but not the first write cache and destaging the relocation write data to the bulk non-volatile memory from the second write cache.