Patent ID: 9229660
Filing Date: 2016-01-05
CPC Classification: G06F

Claim Text:
1. A storage system comprising: a plurality of storage devices; a plurality of access control devices, each of the access control devices controlling access to one or more of the plurality of storage devices; a relay device to connect each of the plurality of storage devices to one of the plurality of access control devices; and a connection control device connected to the relay device and to each of the plurality of access control devices and configured to instruct, in response to load states received from each of the plurality of access control devices, the relay device to switch a connection from between one or more of the plurality of storage devices and one of the plurality of access control devices to a connection between the one or more of the plurality of storage devices and one or more other access control devices from among the plurality of access control devices, wherein when a first load parameter indicating a load state of a first access control device exceeds a predetermined threshold value and a second load parameter indicating a load state of a second access control device is less than or equal to the predetermined threshold value, the connection control device instructs the relay device to disconnect a first storage device from the first access control device and to connect the first storage device to the second access control device so as to switch an access control device connected to the first storage device from the first access control device to the second access control device, the first storage device having a maximum amount of transfer data per unit time among storage devices connected to the first access control device.