Storage sub-system and management program
First Claim
1. A storage system having a storage and a controller, wherein said storage has an interface connecting said storage to a storage of another storage system via a communication line, and a remote copy module transferring predetermined data to the storage of said another storage system via said communication line, not via said controller, based on a data transfer command from said controller, said controller has a remote copy control module transmitting, to said remote copy module, at reception of a notification of account movement from an account monitor module monitoring the change of an account attribute with said account movement, a data transfer command for transferring predetermined data stored-into said storage via said communication line to said another storage system.
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Abstract
An object of the present invention is to permit, with account movement, increase of the speed of data transfer of an exclusive storage area of a targeted account (a home directory of a user) and reduction of the load of a controller of a host computer.
A storage system according to an embodiment of the present invention has a storage and a controller. The storage has an interface for connecting it to a storage of another storage system via a communication line, and a remote copy module transferring predetermined data to the another storage system, not via the controller, based on a data transfer command from the controller. The controller has a remote copy control module transmitting, to the remote copy module, at reception of a notification of account attribute movement from an account monitor module monitoring the account attribute movement, a data transfer command for transferring predetermined data to the another storage system, not via the controller.
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Citations
15 Claims
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1. A storage system having a storage and a controller, wherein
said storage has an interface connecting said storage to a storage of another storage system via a communication line, and a remote copy module transferring predetermined data to the storage of said another storage system via said communication line, not via said controller, based on a data transfer command from said controller, said controller has a remote copy control module transmitting, to said remote copy module, at reception of a notification of account movement from an account monitor module monitoring the change of an account attribute with said account movement, a data transfer command for transferring predetermined data stored-into said storage via said communication line to said another storage system.
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11. A management program for allowing a management computer managing a plurality of storage systems having a storage and a controller to execute:
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a policy of receiving a notification of account movement from an account monitor module monitoring the change of an account attribute with said account movement; and
a policy of transmitting, to a storage system related as the account moving side, at reception of said account movement notification, a data transfer command for transferring, to a storage system related as the account moved side, predetermined data stored into said storage via a communication line connecting the storages of said plurality of storage systems, not via said controller. - View Dependent Claims (12, 13, 14, 15)
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Specification