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US 9,069,479 B1Granted
Snapshots in deduplication
AssigneeEMC Corporation
InventorAssaf Natanzon
Life of this patent
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Abstract
A method, system, and program product for creating a virtual LUN from data on a de-duplication device and exposing, via a DPA, the virtual LUN.
Claims19
A system for accessing data on a data de-duplication device, the system comprising:
- a data protection appliance (DPA) including a journal;
- a de-duplication device containing one or more points in time;
- and
- computer-executable logic operating in memory, wherein the computer-executable program logic is configured for execution of:
- creating a virtual LUN based on data on the de-duplication device and the journal of the DPA corresponding to one of the one or more points in time;
- exposing, via the DPA, the virtual LUN;
- wherein read write access to the virtual LUN is enabled;
- wherein write IOs to the virtual LUN are stored in the journal of the DPA.
5 more elements
A computer implemented method for data replication, the method comprising:
- creating a virtual LUN from data on a de-duplication device containing one or more points in time;
- wherein the virtual LUN corresponds to one of the one or more points in time and a journal of a DPA;
- exposing, via the DPA, the virtual LUN;
- wherein read write access to the virtual LUN is enabled;
- wherein write IOs to the virtual LUN are stored in the journal of the DPA.
2 more elements
A computer program product for use in replication comprising:
- a non-transitory computer readable medium encoded with computer executable program code for replication of data, the code configured to enable the execution of:
- creating a virtual LUN from data on a de-duplication device containing one or more points in time;
- wherein the virtual LUN corresponds to one of the one or more points in time and a journal of a DPA
- exposing, via a DPA, the virtual LUN;
- wherein read write access to the virtual LUN is enabled;
- wherein write IOs to the virtual LUN are stored in the journal of the DPA.
3 more elements
Dependencies are inferred from the claim text.