Region-integrated data deduplication

A computer-implemented method for performing deduplication in conjunction with random read and write operations across a namespace divided into a plurality of disjoint regions, each region of the namespace being managed by a region manager, the method comprising:

• maintaining a metadata structure for each of the plurality of disjoint regions via the respective region manager(s) of the one or more of the plurality of disjoint regions, each metadata structure comprising metadata indicating a physical storage location of one or more data chunks associated with the respective region;
• and
• performing a deduplicated write operation of a first data chunk in a first region of the plurality of disjoint regions, wherein the deduplicated write operation comprises:
• consulting, by a first region manager of the first region, a duplicate chunk finder in response to the first region manager receiving a write request corresponding to the first data chunk;
• determining, using at least the duplicate chunk finder, whether one or more of the plurality of disjoint regions other than the first region comprises a second data chunk identical in content to the first data chunk;
• and
• in response to determining one or more of the plurality of disjoint regions other than the first region comprises the second data chunk, establishing by the first region manager a reference from the first data chunk to the second data chunk.

A deduplicating storage system configured to perform random read and write operations across a namespace, the system comprising:

• a processor and logic integrated with and/or executable by the processor, the logic being configured to cause the processor to perform a method comprising:
• maintaining a metadata structure for each of the plurality of disjoint regions via the respective region manager(s) of the one or more of the plurality of disjoint regions, each metadata structure comprising metadata indicating a physical storage location of one or more data chunks associated with the respective region;
• and
• performing a deduplicated write operation of a first data chunk in a first region of the plurality of disjoint regions, wherein the deduplicated write operation comprises:
• consulting, by a first region manager of the first region, a duplicate chunk finder in response to the first region manager receiving a write request corresponding to the first data chunk;
• determining, using at least the duplicate chunk finder, whether one or more of the plurality of disjoint regions other than the first region comprises a second data chunk identical in content to the first data chunk;
• and
• in response to determining one or more of the plurality of disjoint regions other than the first region comprises the second data chunk, establishing by the first region manager a reference from the first data chunk to the second data chunk.