Antonelli, Terry, Stout & Kraus, LLP.
File management method and hierarchy management file system
There is provided a file management system and method of creating a hierarchy management file capable of preventing an access performance from dropping when a user accesses to a file. According to the system and method, a server creates file systems in high-speed and low-speed volumes and a file-sharing server virtually integrates those file systems into one system as a pseudo file system. Then, the server moves a file to be moved to the file system created in the low-speed volume in advance, not when an access is made to the file. When a user accesses to the file after that, the user directly accesses to destination without requiring copying the file, so that the accessing performance may be prevented from dropping.
Hitachi, Ltd.
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Hitoshi Takahiro
Kamei Nakano