An information recording/reproducing operation is performed in accordance with a command from a host computer via a small computer system interface on an information recording medium having a plurality of tracks, each of which has a plurality of sectors arranged thereon. When an error occurs during execution of a command accompanied by an operation of reproducing information from the information recording medium, the command is terminated by using a check condition status, and status information of all sectors on a track, of the information recording medium, which includes a logical block in which the error has occurred is set in sense data.