Patent ID: 8312313

Claim:
An information processing apparatus operable in one of a plurality of power modes including a normal power mode and a power saving mode, the information processing apparatus comprising: a first storage unit and a second storage unit, the second storage unit being arranged to store a copy of the information stored in the first storage unit; a first control unit configured to transmit an instruction to execute a storage process in which, when the first storage unit is replaced with a new storage unit, information stored in the second storage unit is stored in the new storage unit; a second control unit configured to execute the storage process in response to the instruction transmitted from the first control unit to execute the storage process; and a switching unit configured to execute a switching process in which, if an error occurs in the storage process executed by the second control unit while the information processing apparatus is operating in the power saving mode, the power mode of the information processing apparatus is switched from the power saving mode to the normal power mode, wherein the first control unit is further configured to transmit to the second control unit an instruction to execute the storage process again in response to the switching process executed by the switching unit; and the second control unit is further configured to execute the storage process again in response to the instruction to execute the storage process again.