File system with file management function and file...

Details File system with file management function and file... File system with file management function and file...

2007-09-04

2007-09-04

Lane, Jack (Department: 2185)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S221000, C707S793000, C707S793000

Reexamination Certificate

active

11144637

ABSTRACT:
The storage area of a storage unit includes a file area and temporary write area. A pair of map tables are allocated in the storage area. An update processing unit executes update of a page in a file stored in a file area by writing updated data to an unused page acquired from a temporary write area. A commit module alternately writes a list of effective pages in the temporary write area to the pair of map tables whenever each of transactions is committed. A checkpoint processing unit writes back the updated data of each effective page in the temporary write area to the corresponding original page position in the file area.

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patent: 7177866 (2007-02-01), Holenstein et al.
patent: 2005/0120059 (2005-06-01), Verma et al.
Gray, et al., “Transaction Processing: Concepts and Techniques”, Nikkei Business Publications, Inc., vol. 2, pp. 860-870, (2001).
Hattori, et al., “Native XML Database for Contents Management Offering High Performance and Reliability”, Toshiba Review, vol. 59, No. 2, pp. 54-57, (2004).

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