1. A method for use in managing data deduplication in storage systems, the method comprising: evaluating characteristics of first and second data objects based on a set of deduplication policies, wherein the first and second data objects are selected for deduplication, wherein the first and second data objects are organized on a storage system; based on the evaluation, determining a master deduplicated copy, wherein the master deduplicated copy is selected from the group consisting of the first and second data objects; and based on the determination, affecting deduplication performed on the first and second data objects, wherein affecting deduplication includes updating mapping information of the first and second data objects, wherein the first data object is deduplicated to the second data object upon determining that the second data object is selected as the master deduplicated copy, wherein the second data object is deduplicated to the first data object upon determining that the first data object is selected as the master deduplicated copy.