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:
Sep. 06, 2016
Filed:
Aug. 01, 2013
Emc Corporation, Hopkinton, MA (US);
Steven Lockhart, Seattle, WA (US);
Jeffrey Hughes, Seattle, WA (US);
Darrick Lew, Seattle, WA (US);
Nathan Koppes, Bellevue, WA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
The various embodiments are directed towards enabling access to snapshotted versions of files in a distributed file system. The distributed file system may receive a file system operation request that includes at least an entry-ID and a snapshot-ID. File system operation requests may include operations such as reads, writes, moves, or the like. Directory entries that match the entry-ID and the snapshot-ID may be looked up and retrieved from the distributed file system. The retrieved directory entries may also be arranged to include a generation-ID. In the directory entry matching the snapshot-ID, if the generation-ID and the snapshot-ID are different, another directory entry may be looked up from the distributed file system using the entry-ID and the generation-ID. Then the initially requested file system operation may be performed on the retrieved directory entry.