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:
Aug. 04, 2017
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Philippe Armangau, Acton, MA (US);
Christopher A. Seibel, Walpole, MA (US);
John Gillono, North Chelmsford, MA (US);
Bruce E. Caram, Hudson, MA (US);
Yubing Wang, Southborough, MA (US);
Jean-Pierre Bono, Westborough, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A technique for managing metadata in a data storage system includes receiving a set of data to be stored in a file system of the data storage system and calculating values of metadata blocks that the file system will use to organize the set of data in the file system. The technique aggregates values of the metadata blocks and sends them in a single, atomic transaction to a persistent cache. The transaction either succeeds, in which case the persistent cache stores the values of all of the metadata blocks, or it fails, in which case the persistent cache stores none of the values of the metadata blocks. Over time, the persistent cache flushes the values of the metadata blocks to a set of non-volatile storage devices that back the metadata blocks in the data storage system.