Active file Instant Cloning
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United States of America Patent
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Apr 28, 2015
Issued Date -
N/A
app pub date -
Feb 7, 2013
filing date -
Jun 14, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Techniques and mechanisms are provided to instantly clone active files including active optimized files. When a new instance of an active file is created, a new stub is generated in the user namespace and a block map file is cloned. The block map file includes the same offsets and location pointers that existed in the original block map file. No user file data needs to be copied. If the cloned file is later modified, the behavior can be same as what happens when a de-duplicated file is modified.
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