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Druva Assigned Patent

Space-efficient change journal for storage system

Druva Inc., Sunnyvale, CA, has been assigned a patent (11868335) developed by Apte, Anand, Pune, India, and Kumar, Alok, Bihar, India, for a space-efficient change journal for a storage system.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A space-efficient change journal for a storage system is provided. The storage system includes a memory having computer readable instructions stored therein. The system further includes a processor configured to access a log structure merge (LSM) tree-based metadata index having metadata for the storage system. The LSM tree-based metadata index includes indices placed in a plurality of indexing layers and one or more indices are merged within the indexing layers in response to updates to metadata, or as a background task. The processor is configured to identify one or more indices of the LSM tree-based metadata index as entries of a change journal of the storage system. The processor is further configured to maintain the change journal of the storage system based upon the identified entries.

The patent application was filed on 2019-07-30 (16/526284).

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