Systems and methods for managing storage compression operations
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United States of America Patent
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Jan 23, 2018
Grant Date -
Aug 27, 2015
app pub date -
Jul 17, 2014
filing date -
Feb 24, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A compression manager generates a reduced-size data set for a page. The reduced-size data set is stored on a storage medium by a storage module, and unused portions of the page are identified and/or recorded by the storage module. The reduced-size data set may be generated by compressing the page. The reduced-size data set may be written in response to a request from a client, which provides a message that identifies the unused portion(s) of the page. The page may be stored in a file, and the unused portion may correspond to empty portion(s) within the file. The storage module may maintain an index to map the page to the reduced-size data set, such that portions of the page are unmapped. The storage capacity used by the page may correspond to the mapped portion of the page, and exclude portion(s) of the page that are unmapped.
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