Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2007-08-07
2007-08-07
Wong, Don (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
10315820
ABSTRACT:
A method, apparatus and computer product wherein means and mechanisms are provided whereby, in a distributed or clustered shared file system, (1) concurrency classes may be defined specifying granularity of locking, whether locks are cached, and whether modified data is written-through at the completion of updates, (2) certain files, file types, or files and/or file types as used by given applications or classes of applications, may be associated with concurrency classes, and (3) for each usage of a file by an application, the associated concurrency class determines a policy for choosing specific concurrency and coherency control mechanisms to be used for accessing the given file.
REFERENCES:
patent: 5615373 (1997-03-01), Ho
patent: 6546443 (2003-04-01), Kakivaya et al.
patent: 6889249 (2005-05-01), Miloushev et al.
J. T. Robinson A Fast General Purpose Hardware Synchronization Mechanism, Proceedings of the 1985 ACM-SIGMOD International Conference on Management of Data, pp. 122-130.
Devarakonda Murthy V.
Robinson John T.
Aker David
Filipczyk Marc
Wong Don
Yamonaco Lisa
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