主权项 |
1. A computer connected to a network, including a CPU and a plurality of storages devices, and executing a plurality of virtual machines,
wherein as a first virtual machine; the CPU requests a third virtual machine to form an object from a block region after determining the block region which is not subjected to a block access for a predetermined time period or longer stored to a first storage device and is consecutive by a predetermined size or more; and accesses the first storage device by processing the block access for other than the block region formed into the object, or converts the block access for the block region formed into the object to an object access, based on a target block region of a block access received via the network; as a second virtual machine, the CPU accesses a second storage device by processing the file access, or converts the file access to the object access, based on a target file region of a file access received via the network; as a third virtual machine, the CPU forms the object from the block region which is not subjected to the block access for the predetermined time period or longer and is consecutive by a predetermined size or more, and stores the object to a first region of the storage device, in accordance with a request of the object formation; accesses the first region of the third storage device by processing the object access converted from the block access; accesses a second region of the third storage device by processing the object access converted from the file access; and accesses the third storage device by processing the object access which is the object access received via the network and is the object access for the first region or the second region. |