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.

Date of Patent:
Mar. 11, 2025

Filed:

Apr. 19, 2023
Applicant:

Dell Products, L.p., Hopkinton, MA (US);

Inventors:

Venkatesh Dn, Bangalore, IN;

Peniel Charles, Bangalore, IN;

Owen Crowley, Carrigaline, IE;

Assignee:

Dell Products, L.P., Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 3/06 (2006.01); G06F 11/10 (2006.01); G06F 11/16 (2006.01); G06F 11/20 (2006.01); G06F 21/64 (2013.01);
U.S. Cl.
CPC ...
G06F 11/1625 (2013.01); G06F 3/0619 (2013.01); G06F 3/0635 (2013.01); G06F 3/0673 (2013.01); G06F 11/1004 (2013.01); G06F 11/2007 (2013.01); G06F 21/64 (2013.01);
Abstract

Multipathing software in an IO path on a host implements DIF processing (MPIO DIF) to enable data integrity verification to be implemented between the host and a storage array. The multipathing software uses control signaling to identify a set of applications that have data integrity verification implemented using MPIO DIF. For application write IO operations, the multipathing software adds an 8-byte extended sector defined by DIF, to enable data integrity verification to be implemented by the storage array when the write IO is received at the storage array front-end. For application read IO operations, the storage array receives the read IO operation, determines that the read IO operation is from an MPIO DIF application, and the storage array adds an 8-byte extended sector defined by DIF, to enable data integrity verification to be implemented by the multipathing software when the read IO is received from the storage array.


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