1. A method for maintaining a replication of a logical data volume accessible by a computer system, wherein the logical data volume comprises at least one logical data storage unit that is backed by a logical unit number (LUN) that is created and exposed to the computer system by a network storage system, the method comprising: identifying a replication of the LUN, wherein the LUN stores (i) a LUN identifier that is generated and inserted into the LUN by the network storage system, and (ii) a volume identifier identifying the logical data volume and a data storage unit identifier identifying the logical data storage unit and corresponding to the LUN identifier, wherein the volume identifier and the data storage unit identifier are generated during a creation of the logical data volume by a system in communication with the network storage system, and wherein the replication (a) was automatically created by the network storage system based on a pre-existing backup policy, (b) is stored as a separate LUN having a LUN identifier generated by the network storage system that is different from the LUN identifier of the LUN, but (c) has a volume identifier and a data storage unit identifier that have the same values as the volume identifier and the data storage unit identifier of the LUN, respectively, as a result of a copying of data in the LUN to the separate LUN in order to create the replication; and modifying the value of the data storage unit identifier of the replication to correspond to the value of the LUN identifier of the separate LUN, thereby enabling the computer system to recognize the replication as separate from the LUN.