Patent ID: 8214611
Filing Date: 2012-07-03
Classification: G06F

Abstract:
1. A storage subsystem, comprising: plurality of memory devices for storing data; and a controller for sending and receiving information to and from a host via a network, and controlling input and output of the data into and from the memory device with the memory device as a backup destination or a restoration destination of the data; wherein the controller wherein the controller measures a used bandwidth of each of the host interface units as load information of each of the host interface units; stores, at the time of the backup, the used bandwidth of each of the host interface units that is measured at the time of the backup as the load information; and at the time of the restoration, decides a restoration destination according to an objective of restoration from the memory device, restores the backup data to the decided restoration destination, and distributes the load of a host interface unit corresponding to the decided restoration destination among each of the host interface units based on the stored used bandwidth of each of the host interface units.