A storage system control method of controlling a storage system comprising a first storage apparatus including a first storage volume to store data therein, said second storage apparatus including a second storage volume to store data therein, said second storage apparatus being communicably connected to said first storage apparatus, and an information processor communicably connected to said first storage apparatus, comprising the steps of: transmitting by said information processor an identifier to specify the second storage volume in the second storage apparatus to the first storage apparatus; describing by said first storage apparatus said transmitted identifier in a data input/output request for the second storage volume and transmitting said described data input/output request to said second storage apparatus; and performing by said second storage apparatus a data input/output processing for said second storage volume specified by the identifier described in the data input/output request. view more

A storage system control method according to claim 1, wherein: said information processor is communicably connected to the second storage apparatus; and said step of transmitting by the information processor an identifier to specify the second storage volume in the second storage apparatus to the first storage apparatus is a step of receiving by said information processor an identifier from said second storage apparatus to specify the second storage volume in the second storage apparatus and transmitting the identifier to the first storage apparatus. view more

A storage system according to claim 6, wherein: the input/output request is a write command specified by an SCSI standard; and the data input/output processing to be executed by the second storage apparatus is processing to write a copy of the data stored in the first storage volume in the second storage volume identified by the identifier. view more

A storage system according to claim 7, wherein the processing to write a copy of the data stored in the first storage volume in the second storage volume identified by the identifier is processing to write a copy of particular data selected from the data stored in the first storage volume in the second storage volume identified by the identifier, the particular data being not yet written in second storage volume identified by the identifier. view more

A storage system, comprising: a first storage apparatus including a plurality of first storage volumes to store data therein in which when data is written in a first particular one of the first storage volumes, a copy of the data is also written in a second particular one thereof; a second storage apparatus including a plurality of second storage volumes to store data therein, the second storage apparatus being communicably connected to the first storage apparatus; an information processor communicably connected to the first storage apparatus: means for transmitting by the information processor an identifier to identify the first particular one of the second storage volumes in the second storage apparatus to the first storage apparatus; means for stopping by the first storage apparatus the writing of the copy of the data in the second particular one of the first storage volumes when data is written in the first particular one thereof; means for describing by the first storage apparatus the identifier in a data input/output request for the first particular one of the second storage volumes and transmitting the data input/output request to the second storage apparatus; means for writing by the second storage apparatus a copy of the data stored in the second particular one of the first storage volumes in the first particular one of the second storage volumes identified by the identifier described in the data input/output request; and means for writing by the second storage apparatus a copy of the data written in the first particular one of the second storage volumes in a second particular one thereof. view more

A storage apparatus connected to a second storage apparatus including a second storage volume to store data therein and an information processor, comprising: a first storage volume; means for receiving an identifier to identify the second storage volume in the second storage apparatus from the information processor; and means for describing the identifier in a data input/output request for the second storage apparatus to execute data input/output processing for the second storage volume identified by the identifier and transmitting the data input/output request to the second storage apparatus. view more

A storage apparatus according to claim 11, wherein: the input/output request is a write command specified by an SCSI standard; and the data input/output processing to be executed by the second storage apparatus is processing to write a copy of the data stored in the first storage volume in the second storage volume identified by the identifier. view more