Multiple deduplication domains in network storage system

A storage system comprising:

• permanent storage for storing data blocks, wherein each data block stored in the permanent storage is associated with one of a plurality of deduplication domains;
• a memory for storing a fingerprint index for each deduplication domain;
• and
• a processor configured to receive a first data block and identify a first deduplication domain from the plurality of deduplication domains corresponding to the first data block, wherein the processor deduplicates the first data block within the first deduplication domain utilizing a first fingerprint index associated with the first deduplication domain.

A non-transitory computer-readable storage medium storing a computer program, the non-transitory computer-readable storage medium comprising:

• program instructions for identifying a plurality of deduplication domains for a storage system;
• program instructions for creating a fingerprint index for each deduplication domain, wherein each data block stored in the storage system is associated with one of the plurality of deduplication domains;
• program instructions for receiving a first data block at the storage system;
• program instructions for identifying a first deduplication domain from the plurality of deduplication domains corresponding to the first data block;
• and
• program instructions for deduplicating the first data block within the first deduplication domain utilizing a first fingerprint index associated with the first deduplication domain.