ARRANGEMENTS WHICH WRITE SAME DATA AS DATA STORED IN A FIRST CACHE MEMORY MODULE, TO A SECOND CACHE MEMORY MODULE

摘要

A storage device control apparatus including first and second systematic memory module groups, each of which is composed of a plurality of memory modules, a memory controller for controlling memory access to the memory modules belonging to each of the first systematic and second systematic memory module groups. When the memory controller detects failure in one of the other memory systems, the memory system performs memory access to the memory modules belonging to its own systematic memory module groups.