1
Ran Kalach, Kashif Hasan, Paul Adrian Oltean, James Robert Benton, Chun Ho Cheung, Abhishek Gupta: Optimization of a partially deduplicated file. Microsoft Corporation, Henry Gabryjelski, David Andrews, Micky Minhas, March 24, 2015: US08990171 (4 worldwide citation)

The subject disclosure is directed towards transforming a file having at least one undeduplicated portion into a fully deduplicated file. For each of the at least one undeduplicated portion, a deduplication mechanism defines at least one chunk between file offsets associated with the at least one un ...


2
Ping Xie, Chun Ho Cheung, Kashif Hasan, Abhishek Gupta, Ran Kalach, Daniel Hefenbrock: Granular partial recall of deduplicated files. Microsoft Technology Licensing, The Watson I P Group, Vladan M Vasiljevic, January 15, 2019: US10180943

The subject disclosure is directed towards partially recalling file ranges of deduplicated files based on tracking dirty (write modified) ranges (user writes) in a way that eliminates or minimizes reading and writing already-optimized adjacent data. The granularity of the ranges does not depend on a ...


3
Ran Kalach, Kashif Hasan, Paul Adrian Oltean, James R Benton, Chun Ho Cheung, Ahmed Moustafa El Shimi: Data error detection and correction using hash values. Microsoft Technology Licensing, Henry Gabryjelski, Kate Drakos, Micky Minhas, October 6, 2015: US09152502

The subject disclosure is directed towards a data storage service that uses hash values, such as substantially collision-free hash values, to maintain data integrity. These hash values are persisted in the form of mappings corresponding to data blocks in one or more data stores. If a data error is d ...