Patent · US Active

Continuous data protection using a write filter

US11573861B2 · kind B2 · utility

1Cited by

30References

14Claims

0Family size

Assignee

Cohesity, Inc. · US

Inventors

Shobhit Agarwal · San Jose, US
Chinmaya Manjunath · San Jose, US
Kishan Venkata Sravan Nerella · San Jose, US
Ashish Patwardhan · Cupertino, US

Key dates

Filing date	Aug 23, 2019
Grant date	Feb 7, 2023
Priority date	—
Expiry date	Sep 18, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/9027
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A reference snapshot of a storage is stored. Data changes that modify the storage are received. The data changes are captured by a write filter of the storage. The received data changes are logged. The data changes occurring after an instance time of the reference snapshot are applied to the reference snapshot to generate a first incremental snapshot corresponding to a first intermediate reference restoration point. The data changes occurring after an instance time of the first incremental snapshot are applied to the first incremental snapshot to generate a second incremental snapshot corresponding to a second intermediate reference restoration point.

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