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:
May. 18, 2021
Filed:
Oct. 31, 2018
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Ajay Potnis, Pune, IN;
Amit Dharmadhikari, Pune, IN;
Kiran Halwai, Pune, IN;
Adnan Sahin, Needham, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A first Software Defined Network Attached Storage (SDNAS) process on a first storage system forwards snapshots of a file system provided by the first storage system to a second SDNAS process on a second storage system. The snapshots are forwarded by the first SDNAS process on an Internet Protocol (IP) network, to enable the first and second SDNAS processes to maintain redundant access to data of the file system without requiring the first storage system and second storage system to be interoperable. The initial snapshot includes a full version of the file system and subsequent snapshots include changed portions of the file system. Where the snapshot identifies changed portions at the extent level of granularity, the first SDNAS process subdivides the extents into sub-blocks, and only transmits changed sub-blocks of the extents on the IP network.