| 摘要 |
A system and method are provided for deduplication (dedup) of data file information in a network of distributed data filers. A host, including a metadata service (MDS) and a data node (DN), receives a block count and hash group calculations for a file from a network-connected client device. The MDS creates a file map with target addresses, and compares the calculated hash group to hash groups associated with stored blocks of data in a global dedup hash table. If a match is found, the MDS directs the client device not to send the block of data associated with matching hash group, and reallocates the address of the block of data from the target address.
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