| 主权项 |
1. A storage system comprising:
a storage device including a recording medium that stores data and a device controller that executes addition processing involving a change of state of the data with respect to the data; and a storage controller that controls input and output of data for the storage device, the storage controller being configured to transmit, to the storage device, determination information that can be utilized by the device controller for determining whether or not to execute the addition processing along with input-output processing relating to input-output target data, and the device controller being configured to control execution of the addition processing with respect to the input-output target data based on the determination information, wherein the device controller is configured to store user data utilized by a host computer, and a redundant code that is used for recovering the user data and calculated based on the user data, the determination information includes information with which whether input-output target data is the user data or the redundant code is identifiable, and the device controller is configured to execute, in a case wherein input-output target data is identified as the user data based on the determination information, input-output processing that involves the addition processing with respect to the input-output target data, and execute, in a case where the input-output target data is identified as the redundant coded input-output processing that does not involve the addition processing. |
