Patent ID: 8255652

Claim:
A storage device system coupled to an information processing device, the storage device system comprising: a first storage device communicatively connected to the information processing device and managing at least one logical storage volume and a virtual volume in the first storage device, the at least one logical storage volume and the virtual volume are provided to the information processing device, the at least one logical storage volume in the first storage device including a first logical storage volume; and second storage devices communicatively connected to the first storage device and managing at least one logical storage volume in the second storage devices including a second logical storage volume, wherein the virtual volume of the first storage device is related to the second logical storage volume, wherein when the first storage device receives a first command directed to the first logical storage volume in the first storage device from the information processing device, the first storage device stores first data related to the first command in the first logical storage volume and executes the first command using the first data; wherein when first storage device receives a second command directed to the virtual volume in the first storage device from the information processing device, the first storage device transfer the second command and a second data related to the second command to the second logical storage volume in the second device request based on a relationship between the virtual volume and the second logical storage volume, the second storage device stores the second data in the second logical storage volume in response to receiving the second data and executes the second command using the second data.