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:
Jul. 21, 2020
Filed:
Jul. 18, 2017
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Jun Li, San Jose, CA (US);
James Marriot Guyer, Northborough, MA (US);
Michael D Garvey, Brimfield, MA (US);
Stephen Richard Ives, West Boylston, MA (US);
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
Each SSD in an array is divided into splits that are contiguous LBA ranges of equal capacity. The splits are managed as if they were sub-drives or logical drives and used in RAID groups or other forms of redundancy schemes. A processor external to the SSD collects pending defect data log from the SSDs and determines which splits are associated with reported defects. Failed splits are rebuilt in spare splits using RAID or another redundancy scheme. Repaired splits are returned to service as spare splits. Irreparable splits are marked as lost. In the case of SSD failure the data splits of the SSD are rebuilt to a spare SSD. If enough failed splits of the failed SSD can be repaired then the repaired SSD may be returned to service.