Shadow directory structure in a distributed segmented file...

Details Shadow directory structure in a distributed segmented file... Shadow directory structure in a distributed segmented file...

2004-04-28

2008-09-30

Le, Michael (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C714S002000

Reexamination Certificate

active

07430570

ABSTRACT:
Techniques are provided for producing a shadow directory structure for files or directories owned by servers whose parent directories are owned by different servers in a single distributed file system. For each file or directory whose parent directory resides on a remote server, the server owning the file or directory produces a shadow directory structure. The shadow structure may be used in a variety of ways, e.g., to access an orphan when the server owning the orphan's parent directory is offline (e.g., down, failed, or otherwise inaccessible), or to perform a partial file system consistency check (a partial fsck) to verify consistency of segments of the file system.

REFERENCES:
patent: 5721916 (1998-02-01), Pardikar
patent: 6782389 (2004-08-01), Chrin et al.
patent: 7103915 (2006-09-01), Redlich et al.
patent: 2003/0097454 (2003-05-01), Yamakawa et al.
patent: 2003/0126265 (2003-07-01), Aziz et al.
patent: 2004/0088376 (2004-05-01), McCanne et al.

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