Patent ID: 7257843

Claim:
A computer system comprising: a computer, a storage subsystem, and a management computer, wherein the management computer comprises a control unit that issues management commands for managing the computer or the storage subsystem and an interface unit that sends the management commands to the computer or the storage subsystem; wherein the storage subsystem comprises an interface unit that receives management commands from the management computer and a control unit that determines whether to permit execution of the management commands against part or all of a storage area of the storage subsystem, based on a type of a communication path between the management computer and the storage subsystem; and wherein the type of communication path includes a security level assigned to that communication path, and the determination whether to permit execution of the management commands includes determining whether the security level of the communication path meets or exceeds an execution security level of the management command, wherein the level of security of the communication path is determined by a kind of cipher algorithm selected in establishing the communication path between the management computer and the storage subsystem.