Patent ID: 6615313
Filing Date: 2003-09-02
Classification: G06F

Abstract:
An input/output control device coupled to one or more disk devices and coupled to and receiving a write request including data from a processing device, said input/output control device comprising:n (n>2) cache memory modules storing the data upon receiving the write request, wherein said input/output control device transmitting to the processing device a write request complete response, and, asynchronously with transmitting the write request complete response, storing the data from the cache memory modules to the one or more disk devices, wherein the input/output control device dividing the regions of the one or more disk devices into a number of n of the cache memory modules in accordance with configuration information and setting up the configuration information to allocate sequentially primary data and secondary data of the write data, which are written out to a kth region (k=1Ëœn) of a disk device, to the kth cache memory module, and a non-kth cache memory module, respectively.