Method of performing active data copying processing, and storage subsystem and storage control apparatus for performing active data copying processing

A storage control apparatus coupled to a computer, comprising:

• a unit which performs an I/O process relative to a logical storage device to which the I/O process is performed by the computer;
• a judgment unit which determines whether an access to said logical storage device is permitted or not, in accordance with a data copy instruction from the computer for a data copy process relative to said logical storage device;
• and
• a data copy processing unit responsive to the data copy instruction from the computer which data copy processing unit performs the data copy process relative to said logical storage device without involving the computer, in accordance with a determination result by said determination unit.

A storage subsystem coupled to a computer, comprising:

• a logical storage device to which an I/O process is performed by the computer;
• a port which receives an I/O processing request from the computer;
• and
• a processing unit which controls said logical storage device in response to the I/O processing request,
• wherein said processing unit comprises:
• an access permission/rejection table which stores a correspondence between said logical storage device and identification information for identifying the computer or said port of the computer, and defines an access permission/rejection of the computer to said logical storage device;
• a relational table which stores a relation between the identification information and an address identifier for identifying said port for receiving a frame, the address identifier and the identification information being contained in a communication processing request transmitted from the computer to the storage subsystem;
• a determination unit which determines the identification information from said relational table and the address identifier in the communication processing request and determines whether an access to said logical storage device from the computer is permitted or not, in accordance with the determined identification information and said access permission/rejection table;
• and
• a control unit responsive to a data copy instruction from the computer which control unit controls a data copy process relative to said logical storage device in accordance with an access permission/rejection determination result by said determination unit.

A storage control apparatus coupled to a computer, comprising:

• a port which receives an I/O processing request from the computer;
• and
• a processing unit which controls a logical storage device to which an I/O process is performed, in response to the I/O processing request,
• wherein said processing unit comprises:
• an access permission/rejection table which stores a correspondence between said logical storage device and identification information for identifying the computer or said port of the computer, and defines an access permission/rejection of the computer to said logical storage device;
• a relational table which stores a relation between the identification information and an address identifier for identifying said port for receiving a frame, the address identifier and the identification information being contained in a communication processing request transmitted from the computer to the storage subsystem;
• a determination unit which determines the identification information from said relational table and the address identifier in the communication processing request and determines whether an access to said logical storage device from the computer is permitted or not, in accordance with the determined identification information and said access permission/rejection table;
• and
• a control unit responsive to a data copy instruction from the computer which control unit controls a data copy process relative to said logical storage device in accordance with an access permission/rejection determination result by said determination unit.

A storage subsystem coupled to a computer, comprising:

• a logical storage device to which an I/O process is performed by the computer;
• and
• a data copy processing unit which performs a data copy process without involving the computer in response to a data copy instruction from the computer,
• wherein said data copy processing unit determines from the data copy instruction from the computer whether an access to said logical storage device is permitted or not, and performs the data copy process relative to said logical storage device in accordance with a determination result.

A storage subsystem coupled to a computer, comprising:

• a logical storage device to which an I/O process is performed by the computer;
• and
• a processing unit which controls said logical storage device in accordance with the I/O process from the computer,
• wherein in response to a data copy instruction from the computer, said processing unit determines from a correspondence between identification information of the computer and identification information of said logical storage device, whether an access to said logical storage device is permitted or not, and performs a data copy process relative to said logical storage device without involving the computer in accordance with a determination result of an access rejection/permission.