Information processing system, information processing apparatus, storage medium having stored therein information processing program, and method of storing saved data

An information processing system including a first storage device for storing saved data of an application and a second storage device, the information processing system comprising one or more processors performing:

• every time saved data is updated, storing, in the first storage device and the second storage device, identification information indicating the updated saved data;
• every time saved data is updated, storing, in at least one of the first storage device and the second storage device, the identification information corresponding to the saved data before being updated;
• and
• allowing use of the saved data stored in the first storage device, at least under the condition that the identification information indicating the same saved data is stored in the first storage device and the second storage device.

An information processing apparatus capable of accessing a first storage device for storing saved data of an application and a second storage device, the information processing apparatus comprising one or more processors performing:

• every time saved data is updated, storing, in the first storage device and the second storage device, identification information indicating the updated saved data;
• every time saved data is updated, storing, in at least one of the first storage device and the second storage device, the identification information corresponding to the saved data before being updated;
• and
• allowing use of the saved data stored in the first storage device, at least under the condition that the identification information indicating the same saved data is stored in the first storage device and the second storage device.

A non-transitory computer-readable storage medium having stored therein an information processing program to be executed by a computer of an information processing apparatus capable of accessing a first storage device for storing saved data of an application and a second storage device, the information processing program causing the computer to execute:

• every time saved data is updated, storing, in the first storage device and the second storage device, identification information indicating the updated saved data;
• every time saved data is updated, storing, in at least one of the first storage device and the second storage device, the identification information corresponding to the saved data before being updated;
• and
• allowing use of the saved data stored in the first storage device, at least under the condition that the identification information indicating the same saved data is stored in the first storage device and the second storage device.

A method of storing saved data, the method executed by an information processing system capable of accessing a first storage device for storing saved data of an application and a second storage device, the method comprising:

• every time saved data is updated, storing, in the first storage device and the second storage device, identification information indicating the updated saved data;
• every time saved data is updated, storing, in at least one of the first storage device and the second storage device, the identification information corresponding to the saved data before being updated;
• and
• allowing use of the saved data stored in the first storage device, at least under the condition that the identification information indicating the same saved data is stored in the first storage device and the second storage device.