Patent ID: 7721056
Filing Date: 2010-05-18
Classification: G06F

Abstract:
1. A storage system having a first disk array apparatus that provides one or more first volumes for storing data transmitted from a host computer and is managed by a first management terminal connected to the first disk array apparatus; and a second disk array apparatus that provides one or more second volume for storing backup data of the one or more first volumes and is managed by a second management terminal connected to the second disk array apparatus, wherein, the first disk array apparatus includes: a storing unit for storing volume information, which is information about the configuration of the one or more first volumes; an extracting unit for, when receiving an external backup instruction related to a job, extracting, according to a backup instruction, from the volume information stored in the storing unit, volume information for a backup target volume used by the job as backup volume information, by referring to a job assignment table including a relationship between one or more jobs and the one or more first volumes; a presenting unit for presenting the backup volume information extracted by the extracting unit to the second disk array apparatus; and a transmitting unit for transmitting at predetermined times, data from a first temporary storage volume to a second temporary storage volume in the second disk array apparatus, the data having been received from the host computer to be written into the one or more first volumes and being temporarily stored in the first temporary storage volume, and the second disk array apparatus, which is managed by a second manager other than a first manager managing the first disk array apparatus, and which is executing a backup process different from that executed by the first disk array apparatus, including: an allocating unit for allocating a corresponding second volume to the backup target volume by referring to the backup volume information presented by the presenting unit, and a backing up unit for storing the data which is transmitted from the first disk array apparatus and stored in the second temporary storage volume in the allocated corresponding second volume.