| 摘要 |
PROBLEM TO BE SOLVED: To enhance the operating efficiency of a system by performing processing compatibly even when a plurality of basic processors access resources in a shared disk array and to improve the reliability of the system so as not to cause such a phenomenon of data damage or that access from the basic processors becomes a failure even though exclusion control performed in the basic processors so as to prevent the plurality of basic processors from giving access ends in failure. SOLUTION: This shared disk array unit is provided with an access pattern parameter holding part 10 for determining exclusion control processing in the basic processors 1-1 and 1-2 and holding patterns in order to determine an operation of the exclusion control processing, and an access history part 11 for holding history of past access from the basic processors to thereby process compatibly access from a basic processor in the shared disk array so that the performance and reliability of the entire system can be improved. COPYRIGHT: (C)2006,JPO&NCIPI
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