DEVICE OF LINEAR RECORDING SYSTEM EXECUTING OPTIMUM WRITE WHEN RECEIVING COMMAND SEQUENCE IN WHICH READ AND WRITE COMMANDS ARE MIXED, METHOD OF THE SAME, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a tape storage device having an optimum additional writing method.;SOLUTION: The tape storage device includes: a buffer storing data about read and additional writing; a tape in which the data stored in the buffer is recorded; a reading/writing head which reads data from the tape to the buffer and writes data from the buffer to the tape; and a control means for reading data from a designated position of the tape in response to the read command and storing the data into the buffer, and in response to the additional writing command, writing the data stored in the buffer from a data write additional data terminal position of the tape. A nonvolatile memory storing data stored in the buffer by the write command is provided, data stored temporarily in the nonvolatile memory is moved by the prescribed judgement criterion to a tape write position where the data is to be written so that movement distance which the tape travels for the head becomes the minimum, and thus write is executed.;COPYRIGHT: (C)2011,JPO&INPIT