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:
Jul. 20, 2021
Filed:
Oct. 17, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Vamsi K. Vankamamidi, Hopkinton, MA (US);
Socheavy Heng, Framingham, MA (US);
Philippe Armangau, Acton, MA (US);
Christopher A. Seibel, Walpole, MA (US);
James McCoy, Holliston, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A data storage system in which a transaction is generated that indicates at least one data block of a logical volume to be written to non-volatile data storage of a data, and in which the logical volume is accessible to multiple nodes in the data storage system. A system-wide lock is obtained for each data block indicated by the transaction. A new generation identifier is then created that is equal to a last transaction identifier that was created and stored during processing of a previously completed transaction. Each data block indicated by the transaction is stored into the non-volatile data storage of the data storage system together with the new generation identifier and the last transaction identifier is updated before each system-wide lock on each data block indicated by the transaction is released.