| 摘要 |
A storage controller of the present invention detects error with relative ease when reading out data from a storage apparatus. An address data appending device appends address data to each of logical blocks with respect to the data received from a host. A device communication control device determines a divisional position in every data with a size of a predetermined number of blocks, counterchanges the data in anterior and posterior parts around the divisional position, and stores the data in the storage apparatus. When reading the data from the storage apparatus, an address data checking device determines whether or not the value of the address data appended to the block read out and an expected value of the address data calculated based on the divisional position match with each other. If the both values match with each other, the data is sent to the cache memory. If the both values fail to match each other, an error is detected.
|
