Systems and methods for a snapshot of data
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United States of America Patent
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May 31, 2011
Grant Date -
Feb 21, 2008
app pub date -
Aug 18, 2006
filing date -
Aug 18, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. According to one embodiment, the system stores and updates metadata, including a governance list, for each of the files and directories. The governance list provides a representation of the snapshots which govern a file or directory and its descendants.
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