Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-05-09
2006-05-09
Channavajjala, Srirama (Department: 2166)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07043503
ABSTRACT:
A system, method and computer readable medium for providing a file system snapshot with ditto address feature is disclosed. The method includes generating a file system snapshot wherein the snapshot is substantially empty. When metadata associated with a source file included in the snapshot is modified, the inode corresponding to the source file is copied to a shadow inode in the snapshot. When information is appended to a data block associated with a source file included in the snapshot, the inode corresponding to the source file is also copied to a shadow inode in the snapshot. When information in a data block associated with a source file included in the snapshot is overwritten or deleted, the inode corresponding to the source file is copied to a shadow inode in the snapshot and the original data block corresponding to the source file is copied to the snapshot.
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Haskin Roger L.
Sawdon Wayne A.
Schmuck Frank B.
Wyllie James C.
Channavajjala Srirama
Fleit Kain Gibbons Gutman Bongini & Bianco P.L.
Gibbons Jon A.
Giunta Jeffrey N.
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