SYSTEM AND METHODS FOR STORAGE DATA DEDUPLICATION

SYSTEM AND METHODS FOR STORAGE DATA DEDUPLICATION

Data in a storage system is deduplicated after receiving from at least one writing entity requests for a plurality of write operations for a corresponding plurality of data blocks in a storage object. The received blocks are buffered and sorted in order and a sequence of clumps is created from the b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Smith, Garrett, Reddy, Sazzala, Bairavasundaram, Lakshmi Narayanan, Venkitachalam, Ganesh, Patterson, III, R. Hugo, Prabhakaran, Vijayan
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Data in a storage system is deduplicated after receiving from at least one writing entity requests for a plurality of write operations for a corresponding plurality of data blocks in a storage object. The received blocks are buffered and sorted in order and a sequence of clumps is created from the buffered blocks, where each clump comprises a grouping of at least one of the sorted, buffered blocks. A boundary is determined between at least one pair of clumps based at least in part on the content of at least one of the buffered blocks, and it is then determined whether at least one of the clumps is a duplicate of a previously stored clump.