| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage subsystem having controllers in which exclusive control of caches between a plurality of controllers sharing the caches is eliminated. SOLUTION: In the caches 33, 43 to which mutual multiplex writing is performed, cache areas are divided by each processor, each of the controllers 30, 40 accesses only to the self-controller control area. By fixing the cache areas used by each controller, the exclusive control between processors is made unnecessary and performance deterioration accompanying increase of the processors is prevented. COPYRIGHT: (C)2006,JPO&NCIPI
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