Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2003-04-25
2010-02-23
Fleurantin, Jean B. (Department: 2162)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07668876
ABSTRACT:
A method, system, computer system, and computer program product to provide an infrastructure for replicating data across multiple nodes in a network. Changes to data are written to each of a set of mirrored copies of a log on one node. When a storage area containing a portion of one of the mirrored copies of the log becomes full, the storage area is disassociated from the set of mirrored copies. After detaching the storage area, changes are no longer written to the storage area, thereby providing a stable image of that portion of the log data. Log data stored in the storage area are replicated from the storage area to another node. By replicating from a separate detached storage area, log data are replicated without disturbing the disk heads writing changes to each of the set of mirrored copies of the log.
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Campbell Stephenson LLP
Fleurantin Jean B.
Myint Dennis
Symantec Operating Corporation
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