Managing redundant immutable files using deduplication in storage clouds

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United States of America Patent

PATENT NO 9514145
APP PUB NO 20150317328A1
SERIAL NO

14800788

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Abstract

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A method includes receiving a request to save a first file as immutable. The method also includes searching for a second file that is saved and is redundant to the first file. The method further includes determining the second file is one of mutable and immutable. When the second file is mutable, the method includes saving the first file as a master copy, and replacing the second file with a soft link pointing to the master copy. When the second file is immutable, the method includes determining which of the first and second files has a later expiration date and an earlier expiration date, saving the one of the first and second files with the later expiration date as a master copy, and replacing the one of the first and second files with the earlier expiration date with a soft link pointing to the master copy.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chhaunker, Gaurav Hyderabad, IN 20 235
Jain, Bhushan P Maharashtra, IN 24 418
Patil, Sandeep R Pune, IN 342 3476
Ramanthan, Sri Lutz, US 2 12
Trevathan, Matthew B Roswell, US 272 4518

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