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:
Feb. 17, 2026
Filed:
Aug. 05, 2024
Dell Products L.p., Round Rock, TX (US);
Victor Salamon, Edmonton, CA;
Paul A. Shelley, Edmonton, CA;
Dell Products L.P., Round Rock, TX (US);
Abstract
Systems and methods for allowing and maintaining Input/Output (I/O) operations in a distributed storage system with multiple storage sites when communications links between the sites fail are provided. Mirrored storage sites use an update policy, including an update record and a bitmap configured to track changes in memory blocks storing an I/O request. When a link between two or more sites fails, one or more of the sites may be designated as a primary site, on which normal I/O operations may continue. One or more sites may also be designated as non-primary sites and are 'detached' with respect to the primary site or sites. I/O operations on the non-primary sites may be suspended until the link is restored. When the link is restored, the update records and bitmaps are used to rebuild the detached sites.