Metadata structures and related locking techniques to...

Details Metadata structures and related locking techniques to... Metadata structures and related locking techniques to...

2004-12-30

2009-02-03

Peikari, B. James (Department: 2189)

Electrical computers and digital processing systems: multicomput

Remote data accessing

Accessing a remote server

C709S218000, C709S225000

Reexamination Certificate

active

07487228

ABSTRACT:
A cluster 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 metadata for each of the files. A plurality of lock servers, having one or more locks for each file and associated file system metadata operates as a single centralized 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 metadata for at least one file that is related to the requested files, and at least one lock, for each file that has had its metadata retrieved.

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Steven R. Soltis et al., “The Global File System”, Proceedings of the Fifth NASA Goddard Conference on Mass Storage Systems, 1996, p. 319-342.
Kenneth W. Presslan 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. 15-19, 1999, p. 22-41.

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