Using a file handle for associating the file with a tree...

Details Using a file handle for associating the file with a tree... Using a file handle for associating the file with a tree...

2003-09-03

2010-12-07

Lin, Shew-Fen (Department: 2166)

Data processing: database and file management or data structures

File management

File directory structure

C707S823000, C711S205000

Reexamination Certificate

active

07849112

ABSTRACT:
To avoid the need for storing a tree quota identifier attribute for every file in a quota tree, a tree quota identifier is included in the file handle returned by the file server to a client in response to a directory lookup request. The file server discovers that the file is in a quota tree when searching along a path specified by the file pathname and finding a directory having a tree quota identifier. The file server responds to a client request for changing the storage resources used by the file by inspecting the file handle and upon finding the tree quota identifier in the file handle, using the tree quota identifier to index a tree quota database to find usage and limits for the tree quota. The file server checks the limits against any increase in the storage resources for the file, and updates the usage.

REFERENCES:
patent: 5713013 (1998-01-01), Black
patent: 5893140 (1999-04-01), Vahalia et al.
patent: 6643654 (2003-11-01), Patel et al.
patent: 6714949 (2004-03-01), Frey, Jr.
patent: 6985914 (2006-01-01), Venkatesh et al.
patent: 2003/0009484 (2003-01-01), Hamanaka et al.
patent: 2003/0140051 (2003-07-01), Fujiwara et al.
patent: 2004/0107222 (2004-06-01), Venkatesh et al.
patent: 2004/0254936 (2004-12-01), Mohamed
Steere et al., “Efficient User-Level File Cache Management on the Sun Vnode Interface,” USENIX Summer Conference, Jun. 11-15, 1990, Anaheim, California, pp. 325-331.
Uresh Vahalia,UNIX Internals: The new frontiers, Chapter 9, “File System Implementations,” Prentice-Hall, Inc., Upper Saddle River, New Jersey, 1996, pp. 261-289.
Callaghan et al., NFS Version 3 Protocol Specification, RFC 1813, Sun Microsystems, Jun. 1995, published at http://www.faqs.org/ftp/rfc/pdf/rfc1813.txt.pdf, 126 pages.
“FilesystemManager—VxFS,” http://www.fujitsu-computers.com/Servers/software/ds-mgw-12.html, published at least as early as Oct. 28, 2000, 2 pages.
Andy Watson & Paul Benn, Multiprotocol Data Access: NFS, CIFS, and HTTP, TR3014, Network Appliance, Inc,., http://www.netapp.com/tech—library/3014.html, published at least as early as Jul. 12, 2002, 29 pgs.
Traeger et al., “NFS File Handle Security,” Stony Brook University Technical Report FSL-04-03, May 2004, 13 pages.
Stern et al., Managing NFS and NIS, Sec. 7.2, “NFS protocol and implementation,” O'Reilly Media, Inc., Sebastopol, CA, Jun. 2001, 7 pages.
“GetFileInformationByHandle,” Platform SDK:File Systems, Microsoft Corporation, Redmond, WA, Mar. 2005, 5 pages.

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