DATA PRESERVATION PROCESSING DEVICE, RAID CONTROLLER, DATA PRESERVATION PROCESSING SYSTEM, DATA PRESERVATION PROCESSING METHOD AND RECORDING MEDIUM THEREFOR

摘要

Disclosed is a data preservation processing device which effectively realizes data preservation processing on an occurrence of a bit error.;The data preservation processing device includes: a memory monitoring and detection unit which detects a memory being in an abnormal state, the memory being included in a controller which is communicably connected with a storage device and temporarily storing data which is inputted in the storage device; and a data protection unit which changes a write policy concerning the storage device to write-through when the memory monitoring and detection unit detects the memory being in the abnormal state.