Method, system and computer program product for replicating file system objects from a source file system to a target file system and for de-cloning snapshot-files in a file system
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United States of America Patent
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Jun 23, 2020
Grant Date -
Nov 17, 2016
app pub date -
Jan 24, 2014
filing date -
Jan 24, 2014
priority date (Note) -
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Abstract
At the target side, a first instruction to replicate a first target snapshot-file of a target snapshot-file tree of the target file system is received, the first target snapshot-file of the target file system being associated with a first source snapshot-file of the source file system which has been modified in the source file system. One or more data blocks which are owned by a second target snapshot-file and which are shared between the first target snapshot-file and the second target snapshot-file are identified, the second target snapshot-file being an ancestor of the first target snapshot-file in the target snapshot-file tree. Then, at the target side, ownership of the one or more identified data blocks is transferred from the second target snapshot-file to the first target snapshot-file.
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