Patent ID: 8132025
Filing Date: 2012-03-06
Classification: G06F

Abstract:
1. A computer system, comprising: a computer; a storage subsystem coupled to the computer; and a network through which the computer and the storage subsystem are coupled, wherein the computer comprises an interface coupled to the network, a first hardware processor coupled to the interface, and a memory coupled to the first hardware processor, wherein the storage subsystem comprises a disk device to store data, and a second hardware processor to control the disk device, wherein a storage area of the disk device is divided into a plurality of storage areas including, at least, a first storage area and a second storage area, and wherein the first hardware processor is configured to: read a part or parts of data stored in the first storage area to create an index for the data stored in the first storage area; judge whether or not the data stored in the first storage area is confidential data; encrypt the part or parts of the data when it is judged that the data stored in the first storage are is confidential data; and write the encrypted part or parts of the data into the second storage area; wherein the plurality of storage areas further include a third storage area, wherein the first hardware processor reads a part of or parts of data stored in the third storage area, and wherein, when it is judged that the data stored in the first storage area is confidential data, the first hardware processor to encrypt the part or parts of the data read from the third storage area, and to write the encrypted part or parts of the data read from the third storage area into the second storage area.