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. 07, 2020
Filed:
Oct. 30, 2018
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Ningdong Li, Acton, MA (US);
Stephen Ives, West Boylston, MA (US);
Seema Pai, Shrewsbury, MA (US);
Scott Rowlands, Marietta, GA (US);
James Guyer, Northboro, MA (US);
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
Selective use of a software path and hardware path help to provide fine-grained T10-PI support while maintaining IO operation efficiency for single IO read/write commands transferring multiple data segments. NVMe hardware capability (i.e. the hardware path) is always utilized for CPU-intensive CRC verification. NVMe hardware capability is utilized for application tag and reference tag verification whenever possible. Software running on a computing node (i.e. the software path) is used for application tag and reference tag verification and replacement when those functions cannot be implemented by the NVMe hardware.