Preserving redundancy in data deduplication systems by encryption
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United States of America Patent
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Oct 17, 2017
Issued Date -
N/A
app pub date -
Feb 9, 2015
filing date -
Apr 23, 2012
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Abstract
A method for preserving data redundancy in a data deduplication system in a computing environment is provided. A selected data segment, to be written through the data deduplication system, is encrypted such that the selected data segment is not subject to a deduplication operation. The method determines and identifies copies of the data segment that are to be precluded from data deduplication. A unique encryption key is used to encrypt the selected data segment to be written through the data deduplication system such that the selected data segment is not subject to a deduplication operation. The data deduplication system is tricked to recognize the encrypted, selected data segment as new, undeduplicated data by the encrypting thereby skipping steps of the deduplication operation that includes fingerprint generation and matching. The encrypted, selected data segment is directly written to a new physical storage location.
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