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. 31, 2018
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Ajay Potnis, Pune, IN;
Adnan Sahin, Needham, MA (US);
Michael Specht, Boxborough, MA (US);
Bharadwaj Sathavalli, Bangalore, IN;
Shampavman Chenjeri Gururajarao, Bangalore, IN;
Maneesh Singhal, Bangalore, IN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Software Defined Network Attached Storage data backup is implemented using storage array synchronous data replication. A TLU is created for each user filesystem managed by a Virtual Data Mover (VDM). A VDM configuration filesystem is also created containing metadata describing a mapping of user file system TLU to physical storage resources on the storage array. Both the user filesystem TLUs and the VDM configuration filesystem are mapped to an asynchronous Remote Data Forwarding (RDF) group of the storage array, which is used by the storage array to replicate both the user filesystem TLUs and VDM configuration filesystem. Filesystem ID and export path information are reserved on the primary storage array and backup storage array when the RDF group is set up, to enable transparent failover from the primary to the backup node of selected VDMs.