STORAGE SYSTEM AND DEDUPLICATION CONTROL METHOD

A storage system, in a write process of a file, stores the file in a memory and selects whether or not to perform a deduplication process of a chunk based on whether or not at least one of an attribute of the file and a usage capacity at a time of a chunk being read from the memory satisfies a prede...

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Main Authors OGATA Mikito, ARIKAWA Hidehisa, TASHIRO Naomitsu
Format Patent
LanguageEnglish
Published 08.09.2016
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Abstract A storage system, in a write process of a file, stores the file in a memory and selects whether or not to perform a deduplication process of a chunk based on whether or not at least one of an attribute of the file and a usage capacity at a time of a chunk being read from the memory satisfies a predetermined condition, with respect to each of multiple chunks composing the file. With respect to the chunks which are selected not to perform a deduplication process, a deduplication process may be performed asynchronously from a write process.
AbstractList A storage system, in a write process of a file, stores the file in a memory and selects whether or not to perform a deduplication process of a chunk based on whether or not at least one of an attribute of the file and a usage capacity at a time of a chunk being read from the memory satisfies a predetermined condition, with respect to each of multiple chunks composing the file. With respect to the chunks which are selected not to perform a deduplication process, a deduplication process may be performed asynchronously from a write process.
Author TASHIRO Naomitsu
OGATA Mikito
ARIKAWA Hidehisa
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HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING LTD
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Snippet A storage system, in a write process of a file, stores the file in a memory and selects whether or not to perform a deduplication process of a chunk based on...
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SubjectTerms CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Title STORAGE SYSTEM AND DEDUPLICATION CONTROL METHOD
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