Patent ID: 6631443
Filing Date: 2003-10-07
Classification: G06F

Abstract:
A disk storage system, comprising:a control unit having a plurality of external connection points each of which is connected to a host computer via an independent path; and a disk unit group including a plurality of storage units, wherein the control unit receives first and second read requests to the disk unit group and in response thereto conducts a first read operation to read data requested by the first read request and a second read operation to read data requested by the second read request, and conducts a first output operation to output data read by said first read operation to one of said plurality of external connection points and a second output operation to output data read by said second read operation to another of said plurality of external connection points, said second output operation being started before said first output operation has been finished, wherein transfer of at least a portion of the output data from said one external connection point to the host computer according to the first read request is accomplished in parallel with transfer of at least a portion of the output data from said another external connection point to the host computer according to the second read request.