Patent ID: 8712962
Filing Date: 2014-04-29
Classification: G06F

Abstract:
1. A computer implemented method for data replication, the method comprising: pushing a point in time (PIT) to a de-duplication device; creating a virtual logic unit number (LUN) based on the PIT pushed to the de-duplication device; exposing, via a Data Protection Appliance (DPA), the virtual LUN; and enabling read write IO access to the virtual LUN; wherein write IOs of the IOs are written to a journal associated with the virtual LUN; wherein a determination is made for each read IO of the IOs whether the data associated with the each read IO has been overwritten and is in the journal; and based on a determination the each read IO has been overwritten servicing the read IO from the journal and based on a determination the read IO has not been overwritten servicing the read IO from the de-duplication device.