Parallel file system and method with byte range API locking

Details Parallel file system and method with byte range API locking Parallel file system and method with byte range API locking

1997-07-11

1999-12-07

Maung, Zarni

Electrical computers and digital processing systems: multicomput

Computer network managing

Network resource allocating

707 8, 710200, G06F 15163, G06F 1730, G06F 1314

Patent

active

059999764

ABSTRACT:
A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Access to a file by a processor node is controlled by tokens transferred to the node from a token manager. To prevent another processor node from removing a token after the token has been received, but before it performs the operation on the file, each process can lock the token after it has been received. A node with a token can lock a byte range of a file, which byte range may include all or only some of byte range cornered by the token.

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