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:
Jun. 28, 2016
Filed:
Sep. 26, 2013
Emc Corporation, Hopkinton, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
In one aspect, a method includes sending a short hash handle from a production site to a replication site, the short hash handle being generated using a hash signature and being smaller than the hash signature, determining at the replication site whether the short hash handle exists at the replication, reading and sending the hash signature associated with the short hash handle if the short hash handle exists at the replication site, determining at the replication site whether the hash signature exists at the replication and emulating a write operation by associating the hash signature to an address in a second storage volume at the replication site if the hash signature exists at the replication site. The hash signature is generated using a data block from a first storage volume at the production site.