Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2003-01-30
2008-07-29
Peikari, B. James (Department: 2189)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C711S114000, C711S004000, C711S147000, C711S163000
Reexamination Certificate
active
07406473
ABSTRACT:
A distributed file system is disclosed. A plurality of disk servers, operating as a single distributed disk server layer, are connected to the one or more physical disks. Each disk server stores meta-data for each of the files. A plurality of lock servers, having one or more locks for each file operates as a single distributed lock server to coordinate access to the files stored by the disk server layer. A plurality of asynchronous file servers, operating as a single distributed file server layer in response to a request for a file from a user program: (i) retrieves the requested file from the disk server layer and at least one lock, associated with the retrieved file, from the lock server, and (ii) retrieves meta-data for at least one file that is related to the requested files, and at least one lock, for each file that has had its meta-data retrieved.
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Steven R. Soltis, Thomas M. Ruwart, et al.,The Global File System, Proceedings of the Fifth NASA Goddard Conference on Mass Storage Systems (1996).
Kenneth W. Preslan, Andrew P. Barry et al., A 64-bit,Shared Disk File System for Linux, Sixteenth IEEE Mass Storage Systems Symposium held jointly with the Seventh NASA Goddard Conference on Mass Storage Systems & Technologies, San Diego, California (Mar. 15-18, 1999).
Brassow Jonathan
Declerck Michael J.
Lewis Andrew
Manthei Adam
O'Keefe Matthew
MH2 Technology Law Group LLP
Peikari B. James
Red Hat, Inc.
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