| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a cluster storage device having obstacle-proof property and high response performance. SOLUTION: Disclosed is a cluster storage device having a function operating as a virtualized controller. One of a plurality of cluster storage devices with the lowest load is automatically selected as a controller device by a load calculation means installed in each device. Even during operation, the device with a low load is in charge of controller authority. Thus, it is possible to achieve obstacle-proof property and high response by those functions. COPYRIGHT: (C)2010,JPO&INPIT
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