US Patent 7571350 Storage system and recovery method thereof

There is provided a storage system having a host computer for transmitting and receiving data, and a plurality of storage apparatus provided with volumes for storing the data sent by the host computer including a check point setting unit for setting check points as markers during recovery of each volume of the plurality of storage apparatus, a check point management unit for managing the check points set by the check point setting unit, and a recovery order unit for ordering recovery of the volumes up to the state of the check point for each of the volumes managed by the check point management unit to the plurality of storage apparatus.