Patent · US Active

Continuous data protection using deduplication-based storage

US9110914B1 · kind B1 · utility

89Cited by

130References

19Claims

0Family size

Assignee

EMC Corporation · US

Inventors

Shahar Frank · Ramat HaSharon, IL
Assaf Natanzon · Nes Ziona, IL
Jehuda Shemer · Kfar Sava, IL

Key dates

Filing date	Mar 14, 2013
Grant date	Aug 18, 2015
Priority date	—
Expiry date	Nov 29, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F2201/83
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In one aspect, a method includes intercepting a write I/O to a first storage volume of a first storage array having a deduplication-based storage functionality, sending metadata and a signature to a replication data protection appliance and increasing a first reference count representing the data in the write I/O stored at the first storage array if the signature is written to the first journal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.