INFORMATION PROCESSOR, CONTROL PART FOR CONTROLLING DATA STORAGE PERFORMED IN INFORMATION PROCESSOR AND CONTROL METHOD FOR DATA STORAGE

摘要

PROBLEM TO BE SOLVED: To inexpensively secure safety of erasure data when erasing data of a nonvolatile memory provided as a backup destination so as to secure safety of cache data in a writeback cache.

SOLUTION: A data storage situation to a flash memory 150 is managed in an erasure block management table 43. When a power failure occurs during erasure processing of the flash memory 150, the erasure block management table 43 is referred to, and the data corresponding to the erasure from the flash memory 150 based on the data storage situation are newly evacuated to the flash memory 150 from a cache memory 130.

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