IMAGE RECOVERY METHOD, STORAGE EQUIPMENT AND NETWORK SYSTEM

摘要

An image recovery method including: obtaining a position registration of a first storage equipment making a data updating, the position registration registering the updated states of the data at each position; by a second storage equipment, comparing the position registration of its side with the obtained position registration of the first storage equipment to obtain a position which having the different data from the first storage equipment; copying the data corresponding to the position to the first storage equipment. The storage equipment is correspondingly provided, which mainly compares the position registrations for updating data recorded by a registration unit with that of another storage equipment obtained by an obtaining unit, gets the positions of the storage equipment itself which having the different data from another storage equipment, and copies the data corresponding to these positions onto another storage equipment. A network system is also provided.