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:
Dec. 29, 2020
Filed:
Jan. 10, 2019
Western Digital Technologies, Inc., San Jose, CA (US);
Senthil Kumar Veluswamy, Bangalore, IN;
Ayyanar Perumal, Bangalore, IN;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A non-disruptive cross-protocol live data migration process, such as from a legacy SAN storage network to a modern NVMe-oF storage network, includes maintaining a bitmap to track the transferred blocks at migration time, and utilizing the bitmap for intelligent I/O routing decisions that take into account characteristics of SSD-type NVM storage, such as endurance characteristics associated with solid state type memory. Furthermore, protocol command translations and multipath layer capabilities such as I/O queuing are advantaged at migration time to hide the underlying complexities related to a cross-protocol mass data migration, to enable a non-disruptive data migration process intended to avoid application downtime.