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. 10, 2026

Filed:

Jun. 26, 2024
Applicant:

Dell Products L.p., Round Rock, TX (US);

Inventors:

Yuan Gu, Beijing, CN;

Tianfang Xiong, Shanghai, CN;

Chun MA, Beijing, CN;

Yan Shao, Beijing, CN;

Assignee:

Dell Products L.P., Round Rock, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/065 (2013.01); G06F 3/061 (2013.01); G06F 3/0673 (2013.01);
Abstract

Techniques involve: receiving, by a destination device, first input/output (I/O) requests from a source device, the first I/O requests having first logical block addresses (LBAs); writing data in the first I/O requests to a cache of the destination device; flushing the data from the cache to a storage disk of the destination device; recording a particular LBA in the destination device, the particular LBA corresponding to the last LBA to which the destination device is flushed; and sending the particular LBA from the destination device to the source device to enable clearing of journals before the particular LBA in the source device. Such techniques reduce the time spent on replicating data from the source device to the destination device to improve the user experience and reduce the wear and tear of the journal log disk in the destination device to prolong its service life.


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