| 摘要 |
PROBLEM TO BE SOLVED: To enable a thin client to connect to a cache server at normal time, and to connect to a file server at failure time of the cache server, when a thin client acquires a file. SOLUTION: A file storage means 1a stores a copy of the file held by the file server 2, A server information storage means 1b stores server information wherein a communication method when communicating with the filer server 2 is defined. A control information storage means 1c stores control information to control to transmit a file acquisition request to the cache server 1 when the cache server 1 operates and to the file server 2 when not operating. A start-up information transmission means 1d transmits the control information and the server information to the client 3 when start-up notification is input from the client 3. A file transmission means 1e transmits the file to the client 3 when the file acquisition request is input from the client 3. COPYRIGHT: (C)2008,JPO&INPIT
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