Before starting asynchronous remote copy in the multihop method (asynchronous remote copy from the first to the second storage apparatus to the third storage apparatus), a first and a second initial copy are performed. The first initial copy is a copy for making the contents of the first data volume in the first storage apparatus and the contents of the second data volume in the second storage apparatus consistent and the second initial copy is a copy for making the contents of the second data volume and the contents of the third data volume in the third storage apparatus consistent. In the second initial copy, the second storage apparatus creates a journal including the update number and the data in the second data volume, and the journal is transferred from the second storage apparatus to the third storage apparatus. The created update number is acquired from the first storage apparatus.