Disk device, control circuit, data-writing control method, command control method, and computer product

摘要

A degree-of-multiplexing calculating unit receives a capacity restriction command including information for specifying a recording capacity used to write data on a disk from a host computer and calculates degree of multiplexing of the data based on the recording capacity. A writing unit writes data received from the host computer with the degree of multiplexing calculated by the degree-of-multiplexing calculating unit on the disk.