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:
Oct. 19, 2021

Filed:

Apr. 04, 2018
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

John P. Wilkinson, Salisbury, GB;

Andrea Sipka, Nursery Gardens, GB;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/16 (2006.01); G06F 11/14 (2006.01); G06F 16/182 (2019.01);
U.S. Cl.
CPC ...
G06F 13/161 (2013.01); G06F 11/1448 (2013.01); G06F 16/184 (2019.01);
Abstract

A method for improving latency in storage systems, the method comprising, receiving one or more write commands from a host. Determining that one or more bits are not set for a grain associated to a write. Responsive to determining the one or more bits are not set for the grain associated to the write, sending a message to node M requesting node M to set the one or more bits for the grain associated to the write, requesting write data be transferred from the host. Transferring write data from the host. Submitting the write data to a local storage. Replicating the write data to a remote system and complete a write to the host, and notifying node M to clear the one or more bits for the write after a predetermined delay.


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