| 摘要 |
PROBLEM TO BE SOLVED: To provide a shared memory device for efficiently connecting and expanding a plurality of processors in a scalable way via memories and achieving a simple redundant configuration. SOLUTION: The shared memory device includes a plurality of processors 12-0 to 12-16, a plurality of memory modules 14-0 to 14-63 accessible from the processors, a connection part 13 to which only a specified processor among the plurality of processors is connectable to a specified memory module. The plurality of processors are accessible to memory systems M0-M15 formed by one or more memory modules through the connection part. The memory system accessible from the different processors shares a part of the memory modules to be accessed from different processors, and has a redundant function allowing redundancy to the plurality of processors. The processors 12 to 16 are processors for redundancy. COPYRIGHT: (C)2008,JPO&INPIT
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