Electrical computers and digital processing systems: multicomput – Remote data accessing
Reexamination Certificate
2008-03-04
2009-06-16
Donaghue, Larry D (Department: 2445)
Electrical computers and digital processing systems: multicomput
Remote data accessing
C711S153000
Reexamination Certificate
active
07548959
ABSTRACT:
In order to access a distributed file system (DFS) of the present invention using a conventional protocol such as the one for an NFS or a CIFS without making a modification on a client side, a gateway unit for receiving a conventional protocol and performing processing in conformity the protocol is provided for a DFS server. The gateway unit emulates a directory structure in a file system such as the NFS or CIFS. When the DFS is a write-once read-many file system, update processing is converted into processing for creating a new generation file, and reference processing is converted into access to a latest generation file in a generation-managed file group. The gateway unit then accesses a DFS file via a DFS processing unit.
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Enko Yutaka
Iwasaki Masaaki
Nakatani Yoji
Bhatia Ajay
Donaghue Larry D
Hitachi , Ltd.
Mattingly & Malur, PC
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