Provided is a storage control system in which a number of storage
controllers are connected, and restored data is forwarded from one
storage controller to the other storage controller. This storage control
system is configured by a first storage controller and a second storage
controller being connected in a mutually communicable manner, and which
performs data processing according to a request from a host system, the
first storage controller having a virtual volume associated with a
logical volume of the second storage controller; a cache memory
associated with the virtual volume; and a control unit for controlling
the data processing between the cache memory and the virtual volume;
wherein the control unit purges the storage area of the cache memory
corresponding to the virtual volume accessed by the host system upon
storing the restored data of the logical volume in the cache memory.