| 摘要 |
The present invention provides a storage control system that can prevent capacity in a cache memory from being overloaded even when the access performance of a controller in a storage controller to an external storage device in an external storage controller is permanently or temporarily poor. In the storage control system, a first storage controller (20) is connected to a storage device (42) in a second storage controller (40) and the first storage controller is configured to be able to write/read data to/from the storage device in the second storage controller in response to a request from a host device (10) connected to the first storage controller. The first storage controller includes a controller (21) for controlling data transmission and reception between the host device (10) and the storage device (42) in the second storage controller (40), and a cache memory (24) for temporarily storing the data, and the controller sets a threshold value for storage capacity in the cache memory assigned to the storage device according to the properties of the storage device.
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