| 摘要 |
The replication of data between a source system and a destination system is disclosed. After having calculated a signature for a fragment of data to be replicated, the source system transmits same to the destination system. The latter determines whether or not the signature is known, e.g., whether or not a fragment is associated with the signature. If so, the data to be replicated is reconstructed (with respect to fragment in question). If not, a message indicating that the signature is unknown is transmitted to the source system, which then transmits the corresponding fragment to the destination system. The latter stores and reconstructs the data to be replicated (with respect to the fragment in question). |
