File management method in a distributed storage system

Details File management method in a distributed storage system File management method in a distributed storage system

2007-01-16

2007-01-16

Mofiz, Apu (Department: 2165)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

10834866

ABSTRACT:
This invention enables a file to be accessed even during replication while maintaining its consistency. The replication is done among a plurality of distributed storage devices, a file is searched, in response to an access request from a client machine #11, from GUID management databases13, 23each of which stores a relationship between a GUID of a file stored in a storage device #0(#1) and a device ID of a storage device containing an original file. When the storage device #1does not have the demanded file, a device ID (#0) of a storage device containing its original file is searched from the GUID management database based on a GUID of the file C, and the file C demanded by this the storage device #0is accessed.

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“Kernal of the Most Advanced UNIX”by Uresh Vahalia pp. 373-374.

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