Patent ID: 8233626

Claim:
A storage system, comprising: a plurality of storage devices; and a management console that manages the plurality of storage devices, wherein each of the storage devices includes: a plurality of hard disk drives for storing data; and a controller configured to control storage of data in the plurality of hard disk drives; the management console includes: a plurality of storage managers managing each of the plurality of storage devices; a display unit showing information managed in the storage manager; and a data holding unit that holds item information when moving the item information of the information shown on the display unit by means of a first storage manager that manages one storage device of the plurality of storage devices to a second storage manager that manages other storage devices, and wherein the storage manager arranges a first key in a first storage device to encrypt data, and a second key for decrypting data encrypted with the first key in a second storage device of the plurality of storage devices, when the storage manager accepts a copy operation of a first item in the first storage device, the storage manager; creates first item information based on the first item; generates a first digest of the first item information; sends the first digest to the first storage device; receives first signature information, which is the encrypted first digest using the first key, from the first storage device; and stores the first item information, the first digest, and the first signature information in the data holding unit, when the storage manager accepts a paste operation of the first item to the second storage device, the storage manager; retrieves the first item information, the first digest, and the first signature information from the data holding unit; requests the second key from the second storage device; obtains the second key from the second storage device; generates a second digest by decrypting the first signature information using the second key; and if the second digest matches the first digest, sends configuration information for storing the first item in the second storage device to the first storage device and the second storage device, and when the first storage device and the second storage device receive the configuration information, the first storage device and the second storage device configure, a pair of the first item and a second item, which is a copy pair of the first item in the second storage device, based on the configuration information and the first device copies data of the first item to the second storage device.