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Transport speed adjustment device, transport speed adjustment method and transport speed adjustment program for adjusting transport speed of tape medium
Transport speed adjustment device, transport speed adjustment method and transport speed adjustment program for adjusting transport speed of tape medium
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机译:调整带状介质的运送速度的运送速度调整装置,运送速度调整方法及运送速度调整程序
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摘要
A tape drive capable of switching the transport speed of a tape medium among multilevel speeds calculates a data transfer rate from/to a host device, and selects an adjustment mode of the transport speed of the tape medium from a constant speed mode and a speed switch mode according to the calculated data transfer rate. The tape drive in the speed switch mode, pauses a data write or read operation to switch the transport speed of the tape medium while data is written at a first transport speed and when an available capacity of a buffer memory reaches a data volume to be received from the host device during switching of the transport speed and is read out at the first transport speed and when a data volume of a buffer memory reaches a data volume to be transmitted to the host device during switching of the transport speed.
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