Patent ID: 7921077

Claim:
A method for managing data deduplication on a target storage system, comprising: receiving a transfer of data from a source storage system to the target storage system; generating a first persistent consistency point image of the transfer of data, the first persistent consistency point image comprising a first pointer referencing a first block of data and a second pointer referencing a second block of data in an active file system of the target storage system, wherein the first and the second blocks of data comprise identical data; performing data deduplication on the active file system while the first persistent consistency point image comprises the first and the second pointers referencing the first and the second blocks of data in the active file system; generating, in response to performing the data deduplication on the active file system, a second persistent consistency point image of the transfer of data, wherein the second persistent consistency point image comprises the second pointer referencing the first data block; storing the second persistent consistency point image at the target storage system; and deleting the first persistent consistency point image that comprises the second pointer referencing the second data block.