Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-12-05
2006-12-05
Vo, Tim (Department: 2168)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07146389
ABSTRACT:
A method for moving files between network storages in a virtualized network storage system having multiple network storages and rebalancing the free disk spaces. It periodically judges whether to start rebalancing. Two different conditions are adopted for the determination of start: (a) an imbalance of free disk spaces and the minimum value of the free disk spaces is less than a threshold and (b) an imbalance of free disk spaces and the frequency of accesses to the system is less than a threshold. Rebalancing is performed until the difference in free disk spaces falls below the threshold without exceeding the maximum execution time of rebalancing. If a request to write into a file which is being moved from a client takes place during a file moving step, the movement of the file is aborted and the file is deleted from the destination.
REFERENCES:
patent: 6029168 (2000-02-01), Frey
patent: 6067545 (2000-05-01), Wolff
patent: 2003/0220985 (2003-11-01), Kawamoto et al.
patent: 2004/0010654 (2004-01-01), Yasuda et al.
patent: 2004/0068609 (2004-04-01), Umberger et al.
patent: 2004/0205143 (2004-10-01), Uemura
patent: 2004/0215622 (2004-10-01), Dubnick et al.
patent: 06-59982 (1994-03-01), None
Yasuda et al., Mass Storage Systems and Technologies, 2003. (MSST 2003). Proceedings. 20th IEEE/11th NASA Goddard Conference, Apr. 7-10, 2003, pp. 219-227.
http://www.maxtor.com/products/maxattach/products/applicationSpotlights/OTG—solutionsSpotlight.htm, pp. 1-3 2000.
DiFFS: a Scalable Distributed File System, Christos Karamanolis et. al., HP Laboratories Palo Alto, HPL-2001-19, Jan. 24, 2001, pp. 1-7.
Ebata Atsushi
Kawamoto Shinichi
Okitsu Jun
Yasuda Yoshiko
Hitachi , Ltd.
Ly Cheyne D.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Vo Tim
LandOfFree
Method for rebalancing free disk space among network... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for rebalancing free disk space among network..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for rebalancing free disk space among network... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3671885