Cohesity, Inc.

Yu Liu

Zhihuan Qiu

A first group of chunk identifiers associated with a first content identifier structure of a first metadata element and a second group of chunk identifiers associated with a second content identifier structure of a second metadata element are determined. A common sequence of chunk identifiers across at least a portion of the first group of chunk identifiers associated with the first content identifier structure and the second group of chunk identifiers associated with the second content identifier structure is determined. A portion of the first group of chunk identifiers associated with the first content identifier structure and a portion of the second group of chunk identifiers associated with the second content identifier structure is updated to reference a common sequence identifier in place of the determined common sequence of chunk identifiers.

Deduplicating metadata based on a common sequence of chunk identifiers

Data is ingested from a source system. Ingesting the data includes determining corresponding chunk identifiers for a plurality of data chunks corresponding to the ingested data and for each of the plurality of data chunks, verifying whether the corresponding chunk identifier is included in a data structure tracking identifiers of data chunks that were already stored in a storage of a storage system before the data ingestion started and storing the data chunk in a storage based on the verification. After the ingesting is completed, deduplication of the ingested data chunks stored in the storage having a same chunk identifier is performed and the data structure is updated based on the deduplication.

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Milpitas, CA, United States of America

Yu Liu