| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage device capable of adjusting a drive transfer rate even in the case that a constant host transfer rate intermittently falls. <P>SOLUTION: A recorder includes a buffer for temporarily storing data to be read and written with a host device, a recording medium for sequentially recording a plurality of pieces of data, and a control part for controlling data reading and writing between the buffer and the recording medium. The control part measures a plurality of host transfer rates at which data is transmitted/received to/from the host device, adjusts a drive transfer rate at which data is to be transmitted/received to/from the recording medium so as to come close to the host transfer rate, determines whether the host transfer rate reduces by a second reduction amount to an average host transfer rate in a first ratio with respect to the measured plurality of host transfer rates in order to recognize whether the host transfer rate intermittently falls, and selects the adjusted drive transfer rate on the basis of the determination result so as to be lowered to a third level. This lowering can improve a long-term data transfer rate. <P>COPYRIGHT: (C)2013,JPO&INPIT |
