Storage arrangements including: a first storage system including: a first volume which includes a first data area storing data sent from a computer; and a first processor which stores data sent from the computer in the first volume; a second storage system including: a second volume which includes a second data area; a third volume; and a second processor which is configured to store data sent from the first storage system in the second volume; wherein the first processor transfers the data stored in the first data area of the first volume, to the second storage system, and the second processor stores the data in the second data area of the second volume; and wherein in executing a snapshot, the second processor checks and waits until a local copy control flag of the data that is stored in the second data area, is a predetermined value, before executing the snapshot.