Storage system and control method
AssigneeFujitsu Limited
InventorDaiya Nakamura
Life of this patent
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Abstract
A storage system includes plural storage devices, a controller configured to transmit an access request for controlling an access to at least one of the storage devices, a switching part configured to receive the access request from the controller to select the one of the storage devices based on the access request received from the controller, and a proxy response part configured to transmit, if the selected storage device has failed, a response to the access request instead of the failed storage device responding.
Claims17
A storage system comprising:
- a plurality of storage devices;
- a controller configured to transmit an access request for controlling an access to at least one of the storage devices;
- a switching part configured to receive the access request from the controller to select the at least one of the storage devices based on the access request received therefrom;
- and
- a proxy response part configured to determine whether the proxy response part needs to forward the access request to a selected storage device based on address management information including an address determined in loop initialization and condition information of the selected storage device, and to transmit, if the selected storage device has failed, a response including the condition information of the selected storage device to the access request instead of the failed storage device responding.
A method for controlling a storage system including a controller, storage devices, a switching part and a proxy response part, the method comprising:
- transmitting from the controller an access request for controlling an access to at least one of the storage devices;
- receiving the access request transmitted from the controller to cause the switching part to select the at least one of the storage devices based on the received access request;
- determining, by the proxy response part, whether the proxy response part needs to forward the access request to a selected storage device based on address management information including an address determined in loop initialization and condition information of the selected storage device;
- and
- transmitting, if the selected storage device has failed, a response including the condition information of the selected storage device to the access request by the proxy response part instead of the failed storage device responding.
Dependencies are inferred from the claim text.