Patent ID: 6711594
Filing Date: 2004-03-23
Classification: G06F,H04L,Y10S

Abstract:
A distributed data archive device (1) having a function for distributing and saving to-be-saved data (F1) onto a plurality of data servers (2a, 2b, 2c) accessible through a network (3) and a function for extracting saved data therefrom when necessary, said device (1) comprising:division means (13) for dividing the to-be-saved data (F1) into a plurality of divided files (F11, F12, and F13) according to a predetermined division method when the data is saved; integration means (14) for integrating and reconstituting the plurality of divided files into the original to-be-saved data in consideration of the division method when the data is extracted; network communication means (16) for performing processing for transferring and saving the plurality of divided files onto predetermined data servers, respectively, through the network when the data is saved; and for performing processing for extracting the plurality of divided files saved on the individual data servers through the network when the data is extracted; and data management means (15) for forming management data that comprises data-saving procedure information that shows a procedure followed when the data is saved that includes information showing a division method employed by said division means when the data is saved and data depository information that specifies a data server used as a depository destination of the plurality of divided files that have been transferred by said network communication means, and thereafter performing processing for recording the management data onto a predetermined location, and thereafter reading the management data when the data is extracted, and thereafter performing processing for giving the data-saving procedure information included in the management data to said integration means and for giving the data depository information included in the management data to said network communication means.